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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 138 for “"Daily Gain"”.
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The relationship between body weight, daily gain and efficiency of feed utilization in beef cattle
Data collected on weight, feed consumption, and daily gain of 66 steers and 121 bulls were studied by analyses of variance, covariance, correlation, and partial regression. The bulls were of Hereford, Angus, and Shorthorn breeds, and the steers were the offspring of fast and slow gaining bulls that …
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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
… 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 randomized …
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A comparison of virginiamycin and a lactobacillus probiotic as feed additives for swine and the effects of virginiamycin supplementation and crowding stress on swine performance
… pigs fed the probiotic had significantly poorer gains than the control pigs. In three grower-finisher trials, virginiamycin supplementation improved daily gain and feed consumption while lactobacillus probiotic had no significant effect on performance. For experiment II, in four starter trials, …
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Performance and Body Composition in Swine as Affected by Environmental Temperature
… for four weeks. The lysine requirements for daily gain and for feed efficiency were 1.06 and 1.08% for the hot and.93 and 1.12% for the cool conditions respectively. It is concluded that a higher level of lysine is required to enhance daily gain in hot conditions, as compared to cool …
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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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Lysine levels and ideal ratios of amino acids for finishing pigs
… based on the average of the requirements for daily gain, gain:feed ratio, loin-eye area, 10th rib fat depth, lean gain, and plasma urea N were.58% for EF barrows and.64% for EF gilts. Digestible Lys requirement estimates based on the average of the requirements for daily gain, gain:feed ratio, …
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The Effects of Ractopamine Hydrochloride (Paylean) on Efficiency, Carcass Composition, Carcass Quality and Fat Quality in High Lean Growth Pigs
… 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 pork …
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Early weaning and other methods of intensive lamb production
… 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 Blacksburg …
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Predicting topcrossing performance of inbred and selection lines of beef cattle
… The preweaning traits were birth weight, average daily gain, 205-day weight and grade at weaning. After the data were adjusted for age of dam and sex of calf, three statistical methods were used to adjust the data for the effects of inbreeding. From 1964 to 1967 bulls from each of the inbred and …
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Inclusão de volumoso para bovinos de corte terminados com dietas de alto grão
… 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 using …
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Effect of Yeast Supplementation During Various Stages of Beef Production
… 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 = 165 ± 27 …
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Evaluation and Comparison of Environmental Contaminants Present in Two Types of Swine Rearing Facilities
… 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 endotoxin, …
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Characterization of creep feeding and its subsequent effects on immune response, scouring index, and performance of weanling pigs
… per litter was 13 to 194 g/pig preweaning. Daily gain and body weight of nursing pigs was similar during the first 4 wk. Pigs from larger litters had lower birth weights (P < .05), lower 4 wk body weights (P < .09) and daily gains (P < .09), as well as less feed disappearance per pig (P < …
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Nutritional value of sorghum for poultry feed in West Africa
… 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, birds fed …
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Effects of Nutrition and Management on Feed Efficiency, Carcass Value, and Profitability in Feedlot Cattle
… 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 (RFI) was …
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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
… 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 greater …
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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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