Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 283 for “"growth performance"”.
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A landscape genomic approach to investigating growth performance in South African Bonsmara cattle
… a landscape genomic approach to investigate growth performance in Bonsmara cows from three South African provinces, Eastern Cape, Free State and North-West. Landscape genomics seeks to investigate potential associations between the genotype of an animal and a specific environment. Genotype …
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Growth, performance and quality attributes of steers supplemented with high oleic soybean oil
… the effect of high oleic soybean oil on the performance, carcass composition and meat quaility of angus crossbred steers. 30 steers were sorted by weight using stratified sampling design into four pens, 2 being control and 2 being treatment. Control steers were fed a diet that included 3% …
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Effects of Variation in Early Growth Rate of Pigs on Subsequent Growth Performance
… evaluate the relationship between early and late growth performance and carcass composition of pigs under modern management conditions. Results of the first study indicated pigs with heavier BW (1.8 vs 1.3 kg; P < 0.001) at birth were heavier ( P < 0.001) at weaning and had greater (P 0.05) …
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Evaluation of pelleting process parameters on feed nutrients, starch gelatinization and pig growth performance
… effects of starch, vitamin retention, and swine growth performance. A third experiment evaluated methodologies for estimating gelatinized starch in swine feed. Across all experiments, diet formulation was constant. In Exp. 1, treatments were arranged in a 2 × 3 factorial design plus a control, …
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Effects of Commercial Feed Additives on Growth Performance and Gut Microbiota of Nursery Pigs
… disease, with the ultimate goal of improving growth performance. This thesis performed a longitudinal analysis using next-generation sequencing to investigate the dynamic changes of gut microbiota in weaned pigs fed commercial feed additives. Chapter II was used to evaluate the effects of …
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An Examination of the Basis for Poor Growth Performance in the Hybrid Grass Carp
… hybrid proved a disappointment due to its poor growth performance and consumption rate. Investigation of the physiology, morphology, behavior, metabolism, and energy budgets of the hybrid and its parental species shows several traits being responsible for the hybrid's deficiency. Intermediacy of …
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Other people's money: does external debt improve economic growth performance of Frontier market economies?
Sources of long-term growth in an economy hinge on the productive potential of the country. Major contributing factors in the production of an economy include the population representing the labour force, advanced technological inputs, investment and capital accumulation. External debt can be …
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Effects of Host-derived Probiotics on the Growth Performance and Health of Tilapia and Carp
… (<i>Cyprinus carpio</i>), and their influence on growth, feed utilisation, intestinal integrity and microbiome, and mucosal health of the host.<br/>A total of 263 intestinal bacterial isolates were screened <i>in vitro</i> for antagonism against <i>Aeromonas hydrophila</i> and <i>Streptococcus …
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Effects of prenatal testosterone treatment on growth performance and carcass characteristics of cattle and sheep
… with postnatal steroid implantation (I) on growth performance, carcass traits, nitrogen balance and endocrine status of cattle and sheep. In Exp. 1, P heifers possessed improved (P $$.10) were observed with fecal, urinary and total N excretion and amount of N absorbed. Nitrogen retained (% …
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Impact of Dietary Proteins on Growth Performance, Intestinal Morphology, and mRNA Abundance in Weanling Pigs
… peptides manufactured from marine products, on growth performance, nitrogen balance and enzyme and nutrient transporter mRNA expression in the brushborder membrane in weanling pigs. The results indicated that 6 % SDPP increased ADG and ADFI in the first 10 d after weaning (P < 0.05) without …
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The effects of stocking density and housing on feed efficiency and growth performance of broiler chickens
… produced ingredients. To maximize broiler performance, producers should improve feed efficiency, which is crucial for profitability and long-term viability. Factors affecting feed efficiency include energy level of feed, temperature in the house, litter quality, feed wastage, and disease …
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Impact of dietary functional yeast additives on growth performance and health of selected key aquaculture species
The aquaculture industry has witnessed remarkable growth in recent decades underscoring its crucial role in global food security. However, this rapid expansion brings challenges, including the need to meet growing fish demand while minimising environmental impacts and managing disease prevalence. …
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Effects of Ractopamine and Muscle Fiber Number on Swine Growth Performance, Carcass Traits, and Meat Quality
… ELANCO Animal Health, Greenfield, IN) on swine growth performance, carcass traits, meat quality and if its response is influenced by varying muscle fiber number and birth weight. The swine industry is under increasing pressure to maximize efficiency, profitability, and lean meat production. …
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Effects of ractopamine and muscle fiber number on swine growth performance, carcass traits, and meat quality
… ELANCO Animal Health, Greenfield, IN) on swine growth performance, carcass traits, meat quality and if its response is influenced by varying muscle fiber number and birth weight. The swine industry is under increasing pressure to maximize efficiency, profitability, and lean meat production. …
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Effect of strain and skip a day technique on growth performance and carcass characteristics of broiler chickens
… different regimes of the skip-a-day technique on growth performance and carcass characteristics of broiler chickens. A 2×3 factorial study was carried out to determine the growth performance and carcass characteristics of two broiler strains. Each treatment was replicated three times with 25 birds …
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The effect of water quality, acidification, and zinc source on growth performance of nursery and finishing pigs
… 1) evaluating the effect of zinc sources on growth performance and body weight variation of grow-finish pigs, 2) evaluating water characteristics and their effects on reducing water pH using citric acid, and 3) evaluating the effect of dietary ABC-4 formulation strategy, water source, and …
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Effect of circovirus vaccination on immune responses, viral load, and growth performance of pigs under field conditions
… a standard practice to improve pig mortality and growth rate in PCV2-affected herds. Unfortunately, there has been little field-based research evaluating factors which affect circovirus vaccination. The focus of this research was on potential vaccination-affecting factors such as age, dosing …
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The Effect of Various Feed Additives on Growth Performance, Nutrient Utilization, and Cecal Microbial Populations in Poultry
… organic acids, an enzyme, and whole grains on growth performance, nutrient utilization, and select cecal microbial populations in poultry. Unless otherwise noted, all diets were corn soybean meal. In the first study, inulin, oligofructose, short-chain fructooligosaccharide (SCFOS), …
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Effects of mixing on the growth performance of finishing pigs and factors affecting the response to mixing
… evaluate the effects of mixing finishing pigs on growth performance and morbidity and mortality. Study 1 evaluated the effect of gender and of time of mixing (at either wk 9, 11, 13, 15, or 17 post-weaning) from 33.4 to 130.0 kg BW. The results of this study suggested that pigs can be mixed as …
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Effect of floor space in the nursery and grow-finish periods on the growth performance of pigs
… in the nursery and grow-finish periods on the growth performance of pigs. In both studies, subsequent growth performance at an equal floor space across treatment levels was also evaluated over a 2-week period immediately following the floor space evaluation period. Both studies were conducted …
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