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Showing 1 to 20 of 50 for “"Carcass Traits"”.
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Bull-steer comparisons for growth and carcass traits
… was to compare bulls and steers for growth and carcass traits. Bulls (220, 310, 449 kg) weighed more than did steers (204, 273, 381 kg) at weaning, 12 and 18 months of age, respectively, (P < .05), and scored higher on condition at weaning and 18 months of age (P< .05). Bulls (501, 281, 0.48 kg) …
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Altronegest influences growth, reproductive, and carcass traits in male swine
Call number: LD2668 .T4 1986 K58
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The use of carcass traits as indicators of heifer pregnancy in Angus cattle
… slow rate through selection. Unlike reproductive traits, carcass traits such as ribeye area (REA), backfat thickness (FAT), and intramuscular fat percentage (IMF) have moderate to high heritability and genetic progress can be made more quickly in these traits. The transition from marketing cattle …
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Effects of Ractopamine and Muscle Fiber Number on Swine Growth Performance, Carcass Traits, and Meat Quality
… 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. Advances in nutrition, …
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Genetic and Genetic-Feeding Regimen Interaction Effects on Lactation, Growth and Carcass Traits in Dairy Cattle
Average daily gan (ADG), usually estimated from initial and final body weights, ignores information provided by intermediate body-weight measurements. Alternative methods to obtain a more precise estimate of ADG were developed and compared using simulation. Estimated generalized least-squares …
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Effects of ractopamine and muscle fiber number on swine growth performance, carcass traits, and meat quality
… 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. Advances in nutrition, …
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RESIDUAL FEED INTAKE AND THE RELATIONSHIP WITH PERFORMANCE, TEMPERAMENT AND CARCASS TRAITS IN GROWING AND FINISHING STEERS
… on mid-test metabolic body weight. Ultrasound carcass measurements were measured on day 0 and 70 of the growing phase. Steers were harvested after finishing phase and carcass cooler traits were obtained. Low RFI steers consumed less than high RFI steers, but did not differ in average daily gain …
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The Influence of Chromium Supplementation on the Insulin Pathway, Carcass Traits, and Meat Quality of Feedlot Steers
… of this research was to determine how Cr affects carcass traits, meat quality, and the insulin pathway in feedlot steers. Calf-fed steers were allotted to 0 ppb (CON) or 400 ppb Cr propionate (Cr400) for 210d in experiment 1. Two longissimus muscle (LM) biopsies were collected to examine protein …
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Influence of supplemental chromium picolinate on nitrogen balance, dry matter digestibility and carcass traits in growing-finishing pigs
… balance period, all the barrows were killed and carcass data were collected. Growth rate was similar for control and CrPicfed pigs in all trials. Absorption of N was increased by feeding CrPic (P < .07). Neither retained N nor apparent biological value (aBV) was affected by added CrPic. Dry …
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Growth Performance, Carcass Traits, and Reproductive Characteristics in Boars Fed Diets Supplemented With an Organic Source of Selenium
The objectives of this study were to assess growth and reproductive performance of boars fed a diet supplemented with organic selenium (Se). Crossbred boars received one of three treatments: I. basal diet with no supplemental Se, II. basal diet supplemented with 0.3 ppm organic Se (Sel-Plex), and, …
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Effects of Lubabegron supplementation on carcass traits, muscle fiber type, proteome profile and meat quality attributes of finished feedlot steers
… associated with a specific feeding duration. Hot carcass weights (HCW), marbling scores (MS), adjusted fat thickness (aFT), longissimus muscle area (LMA), kidney pelvic and heart fat percentage (KPH), and USDA calculated yield grade (YG) were evaluated for all carcasses (N = 2160). No dose x …
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Effects of rumen-protected lysine supplement on growth and carcass traits in a traditional finishing scheme with crossbred beef steers
… protected amino acids on feedlot performance and carcass characteristics are inconsistent in the literature. Therefore, the purpose of this experiment was to study the effects of rumen-protected lysine supplementation on feedlot performance and carcass characteristics on light weight steers. This …
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Effects of pre- and postnatal testosterone treatments on growth and carcass traits of heifers used in a single-calf heifer system
Three studies evaluated growth and carcass traits of heifers in a single-calf heifer system. In Study 1, 24 prenatally androgenized (PA) heifers and 27 control (C) heifers were fed a finishing diet postpartum and slaughtered at 1.1 cm s.c. fat. Calves were weaned at 117 d of age. Preweaning, PA …
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The effect of two levels of dietary ractopamine hydrochloride (Paylean®) supplementation on growth performance, feed efficiency and quantitative carcass traits in finisher gilts
… growth efficiencies, feed utilisation and carcass revenues. The objective of this study was to investigate the effect of dietary ractopamine (Paylean®) supplementation at levels of 0, 5, and 10 mg.kg-1 (hereafter referred to as 0-RAC, 5-RAC, and 10-RAC respectively) on animal growth …
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The effects of creep feed duration in a drylot system on cow performance as well as calf performance, ruminal fermentation characteristics, and carcass traits
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms
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Reducing Dietary Crude Protein: Characterization of Branched-Chain Amino Acid Antagonism in Modern Broiler Chickens
… influence of leucine on broiler performance and carcass traits. Five experiments were conducted to determine the valine requirement for male and female Cobb 500 broilers. Valine requirements were found to be 78 and 77 for male and female broilers, respectively, based on feed conversion responses …
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Gene variations of FABP4, SCD, GH, and IGF1R and their associations with meat and carcass traits in sheep : A thesis submitted in fulfilment of the requirements for the Degree of Doctor of Philosophy at Lincoln University
… to consumers. Enhancing economically valuable traits in animal production is a primary focus, achievable through biotechnological approaches such as marker-assisted selection. This method leverages genetic variations within candidate genes that influence production traits, guiding animal …
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Effects of prenatal testosterone treatment on growth performance and carcass characteristics of cattle and sheep
… 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 (% of intake and g/d) …
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Comparison of carcass composition, performance, and tissue deposition rates among breeds of swine
… to evaluate differences in performance, carcass traits, and tissue deposition rates among breeds of swine entered in the 2003 National Barrow Show Progeny Test. The test consisted of 362 barrow and gilt progeny from sires within each of the 8 breeds evaluated. Breeds tested were Berkshire …
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The Effect of Copper and Zinc Source on Pre-Weaning Performance of Cows, Health and Performance of Suckling Calves, and Post-Weaning Feedlot Performance, Carcass Composition, and Meat Quality of Calves
… as minerals, on progeny growth, performance and carcass traits. Previous research supports the hypothesis that minerals provided in an organic form should be more soluble and readily available to the body for absorption. Therefore the objectives of this study were to determine if source of …
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