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Teses / dissertações sobre o tema "Geometridae Feeding and feeds"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 29 de janeiro de 2023

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1

Lee, Cheuk-hung, and 李卓雄. "Microbial contamination of enteral feeds." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B31245596.

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2

Beattie, Tara Kate. "Microbial contamination of enteral tube feeds and feeding systems." Thesis, University of Strathclyde, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417337.

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3

Browman, Howard I. "Feeding behaviour in fry of Atlantic salmon, Salmo salar L." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63129.

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4

Van, Niekerk S. J. (Sarel Johannes). "Actual and predicted performance of broiler chickens." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/49817.

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Assignment (MPhil)--University of Stellenbosch, 2004.<br>ENGLISH ABSTRACT: The aim of this study was to evaluate the performance and profitability of different dietary specifications for broiler chickens slaughtered at 35 days of age. Two trials were performed to evaluate different production parameters. The results of these trials were compared to the predicted results of the EFG broiler model. No carcass data were available for the two trials mentioned above. Therefore, in order to evaluate the accuracy of the broiler model when predicting carcass characteristics, two published data set

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5

Thomson, Douglas Edward. "Determination of the effects of fish size and feed pellet size on the settling characteristics of Rainbow trout (Salmo gairdneri) culture cleaning wastes." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/26649.

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This research reports on the determination of the effects of fish size and feed pellet size on the settling characteristics of Rainbow trout (Salmo gairdneri) culture, tank cleaning wastes. Flocculant particle settling curves (Type II) were developed from settling column analysis of cleaning wastes from 11-311 gram Rainbow trout fed a moist pellet diet (Oregon Moist Pellet ®). Four feed pellet sizes were investigated: 3/32, 1/8, 5/32 and 3/16 inch. Overall non-filterable residue removal curves and individual particle settling velocity distribution curves, derived from the Type II settling cu

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6

Fontana, Eddy Alejandro. "Effects of various male feeding regimens on reproduction in broiler breeders." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/43750.

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<p>A study was conducted using commercial broiler breeders with the males fed a diet containing, either 120/0 or 140/0 protein and body weight maintained at either 900/0 or 1000/0 of that recommended by the primary breeder (fed separately), or allowed to eat from the female feeders (controls). Female feeders in the separately fed pens were equipped with especially designed grills, which denied access to the males. The male feeder in these pens was elevated so that females were denied access.</p> <p> Males fed separately (body weight 90% or 1000/0, and dietary protein 120/0 or 140/0) had a sign

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7

Lehmann, Maryna. "Replacing maize with barley in concetrates fed to jersey cows grazing on kikuyu/ryegrass pasture." Thesis, Nelson Mandela Metropolitan University, 2004. http://hdl.handle.net/10948/181.

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The aim of the first study was to determine if barley could replace maize as an energy source in concentrates fed to dairy cows grazing on kikuyu/ryegrass pasture without affecting the milk production, milk composition, or cause metabolic disorders. Sixty Jersey cows, in early to mid lactation were randomly allocated to one of five treatments (n = 12) based on feeding concentrates with different ratios of maize to barley, ranging from 100:0, 75:25, 50:50, 25:75 and 0:100, respectively. Concentrates contained 12 MJ ME kg -1 and 130g CP kg-1 DM and cows were fed 3 kg (as-is) concentrate after ea

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8

Crots, Frans (Francois Engelbertus). "The effect of feed processing techniques on weanling piglet performance." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/53106.

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Thesis (MScAgric)--University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: Starch is the main component of cereal grains and is usually the primary energy source for pigs and poultry. Feed manufacturing can adopt several measures, including physical treatments such as milling or pelleting and other techniques, such as enzyme treatment, to disrupt cell structure. Grinding and pelleting are the most common food processing methods used for pigs. However, pelleting of complete balanced feeds is no longer such an economical proposition due to rising energy and equipment costs; therefore this c

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9

Atkinson, Michael J. "A comparative study of feeding behavior in ambystoma." Virtual Press, 1985. http://liblink.bsu.edu/uhtbin/catkey/438082.

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10

De, Silva Lekamwasam L. S. S. K. "Poultry feeds prepared from fermented prawn waste silage." Thesis, Loughborough University, 1998. https://dspace.lboro.ac.uk/2134/28068.

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The use of shrimp processing waste with other cheap raw materials such as cassava was studied as a potential low cost animal feed, specially in developing countries. The impact on the economies of the shrimp industry and possible effects on the environmental were taken into consideration in developing the project.

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11

Issak, Ibrahim Haji. "Evaluation of dairy cattle rearing practices and feeding management strategies in selected commercial dairy farms in Nakuru district, Kenya." Thesis, Available from the University of Aberdeen Library and Historic Collections Digital Resources, 2008. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=25503.

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12

Francis, Tamson L. "The effects of differences in feeding regime and of export simulations on the growth of the abalone Haliotis midae Linnaeus." Thesis, University of the Western Cape, 2008. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_3633_1258099775.

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<p>Beach-cast kelp (the most widely used feed for commercially grown South African abalone) is plentiful during winter months when periodic storms cause kelp to wash ashore. During summer, however, this resource is not always readily available and farmed abalone are often starved for short periods. The aim of this research was to assess how periodic kelp starvation influences growth of the commercially grown abalone, Haliotis midae Linnaeus.</p>

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13

Gregory, Robert S. "Foraging behaviour and perceived predation risk of juvenile chinook salmon (Oncorhynchus tshawytscha) in turbid waters." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/30976.

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I investigated the effect of turbidity on the foraging behaviour of juvenile Chinook salmon (Oncorhynchus tshawytscha) in the laboratory. Specifically, I examined a behavioural "tradeoff" between visual ability and "perceived" risk. I assessed visual ability by measuring the reaction distance of juvenile Chinook to planktonic Artemia prey. I found Chinook exhibited a log-linear decline in reaction distance with increasing turbidity. To determine the effects of turbidity and microhabitat on foraging rate, I conducted separate experiments for surface (Drosophila), planktonic (Artemia), and ben

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14

Babane, Siviwe Elvis. "Towards understanding the effect of size variation on the aggressive and feeding behaviours ofjuvenile dusky kob Argyrosomus japonicus (Pisces: Sciaenidae)." Thesis, Rhodes University, 2018. http://hdl.handle.net/10962/59592.

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Many studies have been conducted on the effect of size-grading in other fish species. However, there is a paucity of scientific information on the effects of size variation on cannibalism of juvenile dusky kob. Thus, a study focusing on the effect of size variation on juvenile dusky kob aggressive and feeding (browsing) behaviours was conducted. Three separate groups of hatchery-reared juvenile dusky kob of were obtained from Oceanwise (Pty) Ltd for use in a series of three experimental trials. In all trials, juvenile fish of the same age were size-graded and the COV-value was used to determin

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15

Emmerson, Derek Alan. "The effect of protein and energy self-selection on the reproductive performance of turkey hens." Thesis, Virginia Polytechnic Institute and State University, 1988. http://hdl.handle.net/10919/53166.

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Two experiments were conducted to determine the effect of dietary self-selection of protein and energy on the reproductive performance of Large White turkey hens. The first study examined the effect of self-selection on reproductive performance during a production cycle that started in July and ended in December. Hens were maintained on one of two dietary regimes for a 20-week production cycle. Control birds were fed a conventional diet (18% crude protein, 2700 kcal/kg) which contained nutrients at levels recommended by the National Research Council (NRC, 1984). The remaining hens were allowed

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16

Aucamp, Barend Bernadus. "Byvoeding van skape op aangeplante weiding in 'n mediterreense klimaat." Thesis, Port Elizabeth Technikon, 2001. http://hdl.handle.net/10948/44.

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Tydens embrio ontwikkeling groei weefsel deur selvermeedering, maar soos wat soogdiere volwassendheid nader vind groei net plaas deur sel vergroting. Volwassenheid word beskou as wanneer spiergroei ‘n maksimum bereik. Groei sluit die neerlegging van vet in, maar spiermassa is van primêre belang. Die groeikurwe (Fig 1) waarin massatoename teenoor ouderdom vergelyk word, volg ‘n sigmoidale kurwe (Owens et al, 1993). Onder ideale toestande is die groeitempo van lammers relatief konstant van kort na geboorte totdat die helfte van volwassemassa bereik word, waarna dit geleidelik afneem tot volwasse

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17

SADIK, HAITHAM LOTFY. "EFFECTS OF LYSINE, TOTAL SULFUR AMINO ACIDS, AND TALLOW ON LAYING HEN PERFORMANCES." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/183845.

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An experiment was conducted with laying hens to evaluate the effects of added lysine, methionine and tallow on laying hen performances. Twenty-four treatments were obtained as a result of supplementing the basal diets, which contained either 13.86% or 13.5% protein, with 4 levels of synthetic L-lysine Hcl and with 3 levels of DL-methionine. Each treatment was fed to 5 neplicates of four birds each for ten 28-day periods. Tallow was added at a level of 4% to the 13.5% protein diet. Significant improvements were obtained in egg production and in egg mass as a result of lysine and methionine supp

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18

Lumbuenamo, Sita Ntula. "Effects of age and diet on exocrine pancreas function and fat digestibility in poultry." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184810.

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Three experiments were conducted to study changes in exocrine pancreas function in relation to age, dietary fat and digestibility in poultry. In the first experiment, 120 White Leghorn and 120 Hubbard chicks were fed a basal diet with or without 5% animal fat. Total units of lipase, amylase, trypsin and chymotrypsin activities in pancreas increased linearly with age in Hubbards from 2 to 29 days, but plateaued after 16 days in Leghorns. Hubbards showed higher total pancreatic lipase, amylase, trypsin and chymotrypsin activities compared with Leghorns. Addition of 5% dietary fat significantly i

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19

Wong, Ka-hei, and 黃家禧. "Novel function of spexin as a satiety factor in feeding control." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/207994.

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Spexin (SPX), also called neuropeptide Q (NPQ), is a novel neuropeptide discovered recently using the bioinformatic approach. Except for mammals, SPX has not been reported in lower vertebrates including fish and amphibians. Following its discovery, the biological functions of this peptide in both higher and lower vertebrates are still largely unknown. To examine the structure and functions of SPX in fish model, molecular cloning of goldfish SPX has been performed and found to be highly comparable to its mammalian counterparts. In goldfish, broad expression of SPX transcripts has been found

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20

梁詠蓮 and Wing-lin Winny Leung. "Feeding behavior and serotonin metabolism in diet-induced obese rats." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31241980.

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21

Phiri, Donald Mwelwa. "The effect of leguminous browse supplementation on maize husk utilization by goats indigenous to the eastern province of Zambia /." Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=60531.

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Small maize livestock farmers in the Eastern Province of Zambia badly need forage high in protein to supplement the protein deficient pasture grass. Nutrient intake, especially for the small ruminants with small gastro-intestinal capacity compared to metabolizable energy requirement, will be near or below maintenance if these poor quality feeds are not supplemented. High quality supplements however, are beyond the reach of the small scale farmers. The effect of feeding maize husk and leucaena as a mixture or separately on voluntary intake of maize husk was studied over a 40 day period. Ten mal

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22

Tomlinson, Dana J. "Effect of varying levels of neutral detergent fiber and total digestible nutrients on dry matter intake of dairy heifers." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/43297.

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One hundred and eight Holstein dairy heifers were divided into two weight blocks based on beginning body weight (E = < 182 kg, light, > 270 kg, heavy). Heifers within weight blocks were randomly assigned to one of five treatments. Treatments consisted of three levels of NDF (35%, 45%, 55%) at 100% ofNRC TDN recommendation, and three levels of TDN (85%, 100%, 115 of NRC) at 45% NDF for light heifers. For heavy heifers, treatments consisted of three levels of NDF (40%, 50%, 60%) at 100% NRC TDN, and three treatments with similar levels of TDN at 50% NDF. Heifers were fed total mixed rations of

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23

Mukisira, Ephraim Amiani. "The influence of alkaloids on voluntary intake and performance by ruminants fed diets containing lupin seed in Kenya." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41730.

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Lupin seed has the potential to be used as a protein supplement in ruminant rations, but its usage is restricted by the presence of alkaloids. Experiments were conducted with the aim of determining whether the removal of specific toxic alkaloids, lupanine and 13-hydroxylupanine, from crushed lupin seed (CLS) would improve the organic matter intake (OMI) and average daily gains (ADG) in lambs, and also improve the lactation performance in dairy cows. Effects on liver function in lambs were also investigated. An additional study on the effects of the detoxification of CLS on the degradation of p

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24

Wampler, Susan Anderson. "Preference and acceptability of four protein sources by ruminating Holstein calves." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/44093.

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Four successive groups of four calves each (~ 4 mo old) were individually penned and observed during a 14 d trial period for choice of concentrate. Prior calf diets contained soybean meal (SBM) (for two groups and distillers grains in place of SBM for two groups. Concentrates contained approximately equal amounts of corn with either SBM, peanut meal (PNM), fish meal (FSM), or corn gluten meal (CGM). Each day of four trials, .45 kg of each concentrate was randomly assigned to one of four equal feed box sections. Calf feeding position was recorded every 30 sec for no more than 50 min or unt

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25

Lemm, Sonja Nicole. "Alternate-day feeding and rotating of feeds in the diet of beef cattle." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0009/MQ60146.pdf.

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26

Gotterbarm, Götz. "Evaluation of whole soybeans in swine diets." Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61172.

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A laboratory assessment and three in vivo trials were conducted to measure the nutritive value of whole soybeans subjected to various methods of heat treatment. No significant differences were found for ADG and feed conversion ratio. There was a significant reduced proportion of saturated-to unsaturated fatty acids in the loin eye area of pigs fed whole soybean products, when compared to soybean meal control. Extruded whole soybeans resulted in a lower degree of unsaturation than the other heat treated whole soybeans. Whole soybean products were evaluated for their digestibility in weanling (2

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27

Gurney, Leigh Josephine. "Feeding biology of three euphausiid species in the vicinity of the Prince Edward Archipelago (Southern Ocean)." Thesis, Rhodes University, 2000. http://hdl.handle.net/10962/d1005381.

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The feeding biology of three euphausiid species, Euphausia vallentini (adults and juveniles), E. longirostris and Nematoscelis megalops was investigated during austral autumn (April/May) of 1998 and 1999, in the vicinity of the Prince Edward Islands (Southern Ocean). Data on the abundance and biomass of these species, estimated from bongo net tows, were investigated. Trophic position was assessed using gut contents and stable nitrogen isotope measurements. Feeding rate and daily carbon ration were estimated using the gut fluorescence and the gut fullness techniques. Vertical migrations into th

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28

DUNNING, JOHN BARNARD JR. "FORAGING CHOICE IN THREE SPECIES OF PIPILO (AVES: PASSERIFORMES): A TEST OF THE THRESHOLD CONCEPT (BAYESIAN, TOWHEE)." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/183858.

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Foraging by captive individuals of three species of towhees (Pipilo:Emberizinae) was investigated to determine if patch choice was associated with critical threshold levels of foraging success. Birds were offered a choice of feeding in three litter types. Once individual preferences for litter type were determined, I reduced the amount of food (millet seed) under a preferred litter each day, while maintaining high levels under a non-preferred litter. Thus, birds experienced a declining resource gradient under their preferred litter. During the bird's initial foraging period each day, I noted n

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29

Khalaf, Sadi Shalan. "THE USE OF CALCIUM TREATED ANIMAL FAT IN THE RATION OF DAIRY COWS." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275261.

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30

Al-Hozab, Adel Abdullah. "THE EFFECT OF TALLOW ON TRUE METABOLIZABLE ENERGY OF SOME POULTRY FEEDSTUFFS (TME)." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275342.

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31

Novaes, Luciano Patto. "Growth, body composition and costs of feeding Holstein heifers." Diss., Virginia Tech, 1990. http://hdl.handle.net/10919/38994.

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32

O'Sullivan, Neil P. "Genotype by feeding regimen interactions in growth selected chickens." Diss., This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-01242009-063156/.

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33

Nolte, Joubert van Eeden. "An evaluation of degradable protein and nonprotein nitrogen on intake and digestion by Dohne merino sheep fed wheat straw." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51597.

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Thesis (MSc)--Stellenbosch University, 2000.<br>ENGLISH ABSTRACT: South Africa, like many other developing countries throughout the world, has a rapidly growing human population, resulting in a consequent increased demand for food. Ironically, this increased food supply has to be produced on a smaller area of available agricultural land, which means that agricultural production processes have to become more efficient. Furthermore, the majority of the people in these countries are unschooled and poverty is a common phenomenon. Therefore, animal scientists are faced with the challenge and t

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34

Jurgens, Andre Hendrik. "Feedlot performance and essential amino acid growth requirements of Dorper lambs." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52846.

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Thesis (MScAgric)--University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: The Dorper is numerically the second most abundent of all the sheep breeds in South Africa. It is the most numerous sheep breed in the dry arid areas of South Africa which make out a very big portion of the natural grazing in South Africa. In this study the feedlot performance was specifically investigated since so little research has been done in this regard. In the first study (Chapter 1), the production efficiency, body components and commercial yield of 13 Dorper and 12 Merino lambs were investigated. A pellet

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35

Joubert, Polly Ann. "Production of enteral feeds : manual vs mechanised vs 'ready to hang'." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53560.

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Thesis (Mnutr)--Stellenbosch University, 2003.<br>ENGLISH ABSTRACT: INTRODUCTION Many patients seen by dietitians in Tygerberg Academic Hospital require feeding via the enteral route. Prior to this study all enteral feeds were mixed individually by hand, and production was time consuming and very labour intensive. The purpose of this study was, therefore, to compare the current method of production, with mechanised bulk production (MP) and "Ready to hang" (RTH) products, taking time, safety and cost effectiveness into consideration. MATERIALS AND METHODS A machine was designed and bui

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36

Furnell, Donald James. "The effect of feeding frequency on the respiratory metabolism of sablefish (Anoplopoma fimbria)." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/27302.

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The three components of the aerobic respiratory metabolism of sablefish, digestion (SDA), activity, and standard metabolism, were examined separately and together as dependent variables responding to the independent variable, feeding frequency. All fish were similar in size and held within a temperature range of 8.5 - 9.5 C on a 12 hr photoperiod. Fish were studied in both 4000 L mass respirometers equipped with activity meters and in a tunnel respirometer. Identical meals were given every 4, 7, and 14 days. A fourth series of starved fish served as controls. In the mass respirometers, oxygen

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37

Pecsok, Steven R. "Grouping and feeding policies for lactating dairy cows." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54259.

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Data from the University of New Hampshire were used to analyze dry matter intake and milk production in Holstein dairy cows. Equations predicting 4% FCM and dry matter intake were derived from this data using ordinary least squares. Days in milk, available nutrients, calving date, and previous period 4% FCM accounted for 90% of the variation in 4% FCM for heifers and 93% of the variation in 4% FCM for cows with previous lactations. Days in milk, acid detergent fiber, calving date, and dry matter intake from the previous 28 day period accounted for 71% of the variation in heifer dry matter inta

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38

Grubjesic, Goran [Verfasser], and Markus [Akademischer Betreuer] Rodehutscord. "Investigations on ruminal degradation of nutrients and feeding values of single feeds and compound feeds for cattle / Goran Grubjesic ; Betreuer: Markus Rodehutscord." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2020. http://d-nb.info/1213803764/34.

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39

Vilchez, Niceas Carlos. "Effect of supplemental dietary fat on the reproductive performance of hens of turkey and Japanese quail." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61252.

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Four experiments were conducted on hens of turkey and Japanese quail. In Experiment I, turkey hens were fed diets containing either 0% added fat, 3.5% animal-vegetable fat blend (AV) or 3.5% dry fat product (DF). In Experiment II with turkey hens, 2 holding diets and 4 breeder diets were investigated. The holding diets contained either 0% added fat or 5% of AV. The breeder diets contained 0% added fat of 5% of one of the following: AV, corn oil (CO) or olive oil (OO). In Experiment III with Japanese quail, 3 pre-breeder (PB) and 3 breeder diets (BD) were studied. They contained either 0, 3.5 o

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40

Poon, Yiu-nam David, and 潘耀南. "The population dynamics and feeding ecology of the mangrove crabs, Metopograpsus frontalis (Grapsidae) and Perisesarma bidens(Sesarmidae), in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B31228331.

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41

Ranwedzi, Ndivhuho Emmanuel. "An evaluation of family poultry production systems in the Northern region." Thesis, Port Elizabeth Technikon, 2002. http://hdl.handle.net/10948/93.

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Introduction : Family Poultry (FP) are birds of indigenous breeds living in almost symbiotic relationship with human communities. The chickens are usually free ranging, or have very limited restrains on their access to the village environment. African livestock population statistics for 1995 indicates poultry to be the most numerous species of farm animal (Anonymous, 1996a). More than 80% of poultry are kept in rural areas and contribute substantially to annual egg and meat production (Sonaiya, 1997). Throughout Africa poultry production stems from ancient traditional practices. FP is the most

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42

Pajor, Edmond A. "The correlates of individual variation in the ontogeny of solid food consumption in pigs /." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=60111.

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In order to describe the ontogeny of solid food consumption by pigs and determine its influence on weight gain, before and after an abrupt weaning at 4 weeks of age, individual feed consumption was measured using a technique that combined load cells and video images. Feed consumption varied greatly both between and within litters. Within litters, consumption was positively correlated with birth weight, and with early weight gains. This suggests that greater feed intake was typical of larger and more mature pigs rather than reflecting compensation for poor milk intake by smaller litter-mates. W

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Mavimbela, David Thele. "The nutritional value of broiler litter as a feed source for sheep during periods of feed shortage." Thesis, Pretoria : [s.n.], 1999. http://upetd.up.ac.za/thesis/available/etd-12152006-153846.

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MITCHELL, WILLIAM ALBERT. "INFORMATIONAL CONSTRAINTS IN OPTIMAL FORAGING: THEORETICAL DEVELOPMENT AND FIELD EXPERIMENTS WITH HUMMINGBIRDS (ARIZONA, CHIRICAHUA)." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/183827.

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I consider two types of foraging situations. In the first type, the forager knows the location and quality of no more than one food item or habitat at a time. I call this myopic foraging. In the second situation, the forager may know the location and quality of more than one food item or habitat at a time. I call this periscopic foraging. I develop theoretically both models and the predictions generated by each. Myopic models predict that foragers should have a so-called "bang-bang" control with respect to the choice of food types. Periscopic models predict that foragers will have a continuous

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Standley, William George. "THE EFFECT OF SEED SIZE ON RESEEDING IN THE PRESENCE OF HETEROMYIDS (RODENTS, PREFERENCE)." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275316.

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Moller, Zanmari. "The use of an oregano oil extract as feed-addictive for Jersey cows grazing on ryegrass pasture in spring." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/98092.

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Thesis (MSc)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: Monensin was approved in the 1970’s as a feed additive to ruminant diets. Since then, many studies on the effects of Monensin were done. Its mode of action includes the improvement of feed conversion by altering rumen fermentation. This alteration results in a change in the rumen microbial population. Some processes that benefit from the manipulation of rumen microbial population are volatile fatty acid production, peptide degradation and amino acid deamination. The use of ionophores as an antibacterial product in animal feeds

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Ravindran, Velmurugu. "Development of cassava (Manihot esculenta Crantz) leaf meal as an animal feed." Diss., Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/76479.

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Research was conducted in Sri Lanka to evaluate the feasibility of developing cassava (Manihot esculenta Crantz) leaf meal as an animal feed. In feeding trials with broilers, improvements in performance were observed at 10% inclusion of cassava leaf meal (CLM). High levels (20 and 30%) of CLM depressed gain, feed intake and feed per gain. Weights of spleen and liver (% of body weight) linearly increased with increasing levels of CLM. Carcass pigmentation values favored the CLM-based diets. Dietary additives (methionine, sodium thiosulfate or soybean oil plus methionine) improved the growth of

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Musial, Abigail. "Increasing Time to Full Enteral Feeds in Hospitalized Children with Medical Complexity Experiencing Feeding Intolerance." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1617104772672061.

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Sokanyile, Sanda. "How phase feeding manipulation affects growth, performance, feed cost, carcass characteristics and the quality of meat from broilers." Thesis, University of Fort Hare, 2017. http://hdl.handle.net/10353/5565.

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The main objective of the study was to determine how phase feeding manipulation affects growth performance, feed cost, carcass characteristics and quality of meat from broiler chickens. A total of 180 day old un-sexed broiler chicks (Cobb 500) were separated into 3 dietary treatments of 60 birds per treatment and each treatment was replicated 3 times with 20 birds per replicate. The dietary treatments were as follows: T1 (starter 1-7 days; grower 8-21 days; finisher 22-35 days), T2 (starter 1-14 days; grower 15-21 days, finisher 22-35 days) and T3 (starter 1-14 days; grower 15-28 days; finishe

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Andrade-Salas, Obdulio. "Feeding and digestion in the ectoparasitic copepod Lepeophtheirus salmonis (Kroyer, 1837)." Thesis, University of Stirling, 1997. http://hdl.handle.net/1893/3266.

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A study has been carried out to investigate some aspects of the feeding and digestion of the parasitic copepod Lepeophtheirus salmonis (Kreyer, 1837), a serious pathogen of wild and farmed marine salmonids. The alimentary canal consists of a cuticularised foregut and hindgut and a midgut, the latter comprising most of the length of the alimentary canal. It consisted of an anterior diverticulum, and anterior midgut, mid midgut and posterior midgut. All the midgut is lined in the luminal side with a monolayer of digestive epithelium. The latter is supported by a porous basal membrane. Mesenterie

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