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 121 for “"average daily gain"”.
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Field comparison of intranasal and injectable bovine respiratory disease vaccination on beef calf antibody concentrations, average daily gain, and bovine respiratory disease morbidity
… causes major economic loss through: reduction in average daily gain, treatment costs, and mortality. Reducing BRD incidence would increase profits to producers, reduce antimicrobial use, and improve animal welfare. Two studies were performed to compare clinical vaccine response. First, a …
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The Effects of Ractopamine Hydrochloride (Paylean) on Efficiency, Carcass Composition, Carcass Quality and Fat Quality in High Lean Growth Pigs
… of late finishing swine. Feed efficiency, average daily gain and dressing percentage were all improved (P < 0.05) with the inclusion of RAC. In addition, minimal to no effects were observed for carcass quality characteristics from pigs fed RAC. The effect of RAC on lean carcass yields and …
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Early weaning and other methods of intensive lamb production
… and 1961. Data were available on 457 lambs for average daily gain and slaughter grade and on 311 lambs for carcass grade and yield. The data were adjusted for the effects of breed of sire, breed of dam, age of dam, sex, and type of birth and rearing. Comparing the pasture treatments at both …
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The effects of the rate of gain during four periods of growth on carcass characteristics in swine
… was applied to estimate the effect of rate of gain during four periods of growth (birth to 50 pounds, 50 to 100 pounds, 100 to 150 pounds, and 150 to 200 pounds) on carcass characteristics. The results were expressed as partial regression coefficients in terms of square inches or inches per …
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Predicting topcrossing performance of inbred and selection lines of beef cattle
… was evaluated from the 1962-66 calf crops. The average level of inbreeding of the calves born in these years was 0.40, 0.37, 0.27 and 0.23 in the S-1, S-2, S-4 and S-5 inbred lines, respectively, essentially zero in the Type line and .06 in the Growth line. The preweaning traits were birth …
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Inclusão de volumoso para bovinos de corte terminados com dietas de alto grão
… 5 randomized block design with 150 animals each. Average daily gain, carcass yield, and 6 efficiency were calculated for all animals, and data were collected throughout the 7 experimental period. The finishing characteristics, loin eye area, fat thickness, and croup’s fat 8 thickness were obtained …
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Effect of Yeast Supplementation During Various Stages of Beef Production
… with 2 commercial yeast products (Y1 and Y2). Average daily gain (ADG) was not different (P = 0.99) during the 28 d receiving period; nor was there any difference (P = 0.29) in the percentage of calves treated for bovine respiratory disease. In experiment 2, heifer calves (n = 95; initial BW = …
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Evaluation and Comparison of Environmental Contaminants Present in Two Types of Swine Rearing Facilities
… nursery have greater growth rates measured on an average daily gain, and thymus gland weights than do their counterparts in a conventional nursery. In this study I explored the association of this biological difference with environmental contaminants. Levels of total and respirable dust and …
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Rumen-protected Lysine fed to Holstein cows prepartum and in utero effects on their offspring during the first 56 days of life
… g/d, respectively). Calves in PRE-L had greater average daily gain than calves in CON (0.96 ± 0.04 kg/d vs 0.85 ± 0.03 kg/d, respectively) during wk 6 to 8. Calves in PRE-L tended to be medicated fewer days than CON (4.7 ± 1.2 d vs. 6.2 ± 3.4 d, respectively). Calves in CON-F (4.59 g/dL) had …
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Nutritional value of sorghum for poultry feed in West Africa
… broiler experiments, birds fed corn had greater average daily gain (P < 0.001) with similar carcass weight and yield for birds fed corn- vs sorghum-based diets (P > 0.18). Particle size treatments did not affect growth performance or carcass characteristics (P > 0.20). In the layer experiment, …
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Effects of Nutrition and Management on Feed Efficiency, Carcass Value, and Profitability in Feedlot Cattle
… diets containing wet corn gluten feed (WCGF). Average daily gain was the lowest for the diet containing WCGF. Dry matter intake was lower and G:F was higher for diets composed primarily of dry rolled corn (DRC). Cost of gain (COG) was the lowest for diets containing WCGF. Residual feed intake …
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A method of estimating the feeding value of swine pastures
… total concentrates necessary for maintenance and gain of pigs on pasture. Feed production of each pasture was estimated from the difference between concentrates consumed by the pigs on that pasture and total concentrates for similar performance in dry lot. Estimates for 1949 and 1950 were based on …
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Pre- and postpartum nutritional effects on milk production, milk composition, calf weaning weight and postpartum reproductive performance of commercial beef cows
… did not effect calf weaning weight, calf gain or calf average daily gain. POST nutritional treatments significantly effected all calf performance traits with 37.10±.70, 38.54±.88; 196.89±4.9, 213.33±6.2; 159.79±4.8, 174.78±6.0; .809±.024, .888±.030; for birth weight, weaning …
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Impact of grazing stockpiled tall fescue of lactating beef cows
… was a randomized complete block design. Average daily gain, BW, BCS decreased as forage allowance decreased and endophyte infection increased. However by weaning, cow BW averaged 528 kg across all treatments. Calf gain was unaffected by endophyte infection level of stockpiled tall fescue, …
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Effect of dietary distillers dried grains with solubles (DDGS) and pig removal strategy at harvest on the growth performance, carcass characteristics, and fat quality of growing-finishing pigs
… inclusion level linearly reduced (P ≤ 0.001) average daily gain, feed intake, hot carcass weight, carcass yield, and last rib backfat thickness (measured on the carcass), but had no effect on feed efficiency and 10th rib backfat thickness (measured on the live animal using ultrasound). Iodine …
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Factors influencing cow performance and intake
… system, residual feed intake (RFI), and residual average daily gain (RADG) affect cow performance and intake. In Study 1, a two-year study was conducted using Angus and Simmental X Angus heifers (n=114) to evaluate how weaning system (early weaning (EW) vs. normal weaning (NW)) affects cow-calf …
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Beef on dairy economic selection index
… traits largely due to the inclusion of average daily gain (ADG). The presented index also showed a positive response to selection for carcass weight (86.07 kg), ribeye area (9.78 sq. cm), and marbling (1.29). The economic index derived in this study can be used to improve the …
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RESIDUAL FEED INTAKE AND THE RELATIONSHIP WITH PERFORMANCE, TEMPERAMENT AND CARCASS TRAITS IN GROWING AND FINISHING STEERS
… less than high RFI steers, but did not differ in average daily gain (ADG). Low RFI steers had less backfat compared to high RFI steers. Residual feed intake was independent of growth rate and mature body size, but highly correlated with DMI. Moreover, adjusting RFI for ultrasound carcass traits …
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Comparison of maternal performance of reciprocal crossbred cows
… were not significantly different. Differences in average daily gain from birth to weaning were highly significant in calves from Angus x Hereford cows over calves from Hereford x Angus cows as well as Shorthorn x Hereford over Hereford x Shorthorn. The third set of reCiprocal crossea, Angus x …
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