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Effects Of Sire And Ranch On Live And Carcass Characters Of Beef Cattle And Estimations Of Genetic Parameters
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Book Synopsis Effects of Sire and Ranch on Live and Carcass Characters of Beef Cattle and Estimations of Genetic Parameters by : William Henry Rishel
Download or read book Effects of Sire and Ranch on Live and Carcass Characters of Beef Cattle and Estimations of Genetic Parameters written by William Henry Rishel and published by . This book was released on with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic and Phenotypic Relationships Among Production and Carcass Characteristics in Beef Cattle by : Leo Edwin Dubose
Download or read book Genetic and Phenotypic Relationships Among Production and Carcass Characteristics in Beef Cattle written by Leo Edwin Dubose and published by . This book was released on 1965 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Parameter Estimation for Carcass Traits Including Growth Information of Simmental Beef Cattle Using Restricted Maximum Likelihood with a Multiple-trait Model by : Brent Wayne Woodward
Download or read book Parameter Estimation for Carcass Traits Including Growth Information of Simmental Beef Cattle Using Restricted Maximum Likelihood with a Multiple-trait Model written by Brent Wayne Woodward and published by . This book was released on 1990 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sire Analysis of Bovine Live and Carcass Traits and the Relationship of Live and Carcass Traits with Palatability and Retail Yield by : Robert Douglas Scarth
Download or read book Sire Analysis of Bovine Live and Carcass Traits and the Relationship of Live and Carcass Traits with Palatability and Retail Yield written by Robert Douglas Scarth and published by . This book was released on 1900 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Parameters in Straightbred and Crossbred Beef Cattle Populations by : Richard John Dunn
Download or read book Genetic Parameters in Straightbred and Crossbred Beef Cattle Populations written by Richard John Dunn and published by . This book was released on 1968 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Estimation of Genetic and Phenotypic Parameters for Live and Carcass Traits Based on the Progeny of Selected Beef Sires by : Robert Douglas Scarth
Download or read book Estimation of Genetic and Phenotypic Parameters for Live and Carcass Traits Based on the Progeny of Selected Beef Sires written by Robert Douglas Scarth and published by . This book was released on with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inheritance and Interrelations of Live Performance and Carcass Characteristics in Beef Cattle by : Robert B. Church
Download or read book Inheritance and Interrelations of Live Performance and Carcass Characteristics in Beef Cattle written by Robert B. Church and published by . This book was released on 1963 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was undertaken to evaluate live performance, carcass characteristics and meat quality traits of 183 progeny test steers sired by 10 Hereford, 3 Charolais, 1 Holstein and 1 Angus sires and from grade Hereford dams. An additional group of 10 steers were Hereford sired, from Holstein X Hereford dams. Disproportionate data necessitated an analysis of variance using a nested or hierarchial classification. Components of variance were estimated for groups (feeding method, ranch and breed), sires within groups and progeny within sires. Heritabilities were calculated from paternal half sib correlations. Intercorrelations among 42 performance and carcass traits were calculated. Sire variance and heritability estimates were high for feedlot average daily gain (ADG) for the calves which were fed to market condition rapidly (fed-calf program) but were low for those carried on a lower plane of nutrition for 174 days followed by full feeding to market condition (fed-yearling program). High heritabilities were obtained for lifetime average daily gain (LADG) under both programs and would therefore seem to be a more useful measure of gainability than feedlot ADG. Dressing per cent and per cent kidney fat showed significant sire differences with heritability estimates of 78 per cent and 45 per cent respectively. Measures of fat cover over the rib-eye had low heritabilities which were probably influenced by marketing at an appraised constant finish. Fat cover per cwt. had a higher heritability at 46 per cent and would therefore be a preferred measure for progeny testing purposes. With a heritability of 89 per cent, rib-eye area per cwt. was superior to rib-eye area, rib-eye depth and per cent separable lean in a rib core, for detecting sire progeny differences in leanness. Rib-eye depth proved to be of no value in this regard. No significant group or sire within group differences were obtained for retail yield although the heritability estimate was 29 per cent for this trait. Marketing at an appraised constant finish may have masked sire differences for this measure. Sire progeny groups did not differ in ether extract of longissimus dorsi muscle, a measure of marbling. Sire progeny group differences were easily detected for tenderness of the longissimus dorsi muscle. A similar result was obtained for muscle fiber diameter. Average fat cover was the best individual predictor of retail yield accounting for 29 per cent of its variation. Estimating yield by the U.S.D.A. formula of Murphey et al. (1960) was no more accurate as a predictor than fat cover alone. Other possible predictors of retail yield along with their coefficients of determination were; per cent trimmed chuck (17 per cent), per cent trimmed round (15 per cent), per cent separable lean in a rib core (11 per cent) and rib-eye area per cwt. (6 per cent). No significant relationships were found between measures of gain and retail yield or measures of quality and retail yield.
Book Synopsis Estimates of Genetic Parameters of Certain Production and Carcass Traits in Beef Cattle by : Marion Fitzgerald
Download or read book Estimates of Genetic Parameters of Certain Production and Carcass Traits in Beef Cattle written by Marion Fitzgerald and published by . This book was released on 1961 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Research Publications and Other Contributions by : Pennsylvania State University
Download or read book Research Publications and Other Contributions written by Pennsylvania State University and published by . This book was released on 1969 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Categorizing Linear Type Traits on Estimates of Genetic Parameters and Sire Evaluations in Holstein Cattle by : Barbara Ann Pudalov
Download or read book Effects of Categorizing Linear Type Traits on Estimates of Genetic Parameters and Sire Evaluations in Holstein Cattle written by Barbara Ann Pudalov and published by . This book was released on 1983 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Animal Science written by and published by . This book was released on 1973 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Research Publications and Professional Activities by : Pennsylvania State University
Download or read book Research Publications and Professional Activities written by Pennsylvania State University and published by . This book was released on 1969 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Parameters Among Production, Carcass Composition and Carcass Quality Traits of Beef Cattle by : Darrell A. Busch
Download or read book Genetic Parameters Among Production, Carcass Composition and Carcass Quality Traits of Beef Cattle written by Darrell A. Busch and published by . This book was released on 1968 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings by : Beef Improvement Federation. Research Symposium & Annual Meeting
Download or read book Proceedings written by Beef Improvement Federation. Research Symposium & Annual Meeting and published by . This book was released on 2004 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Live and Carcass Production Traits for Progeny of an F1 USDA Prime - Yield Grade 1 Carcass Clone Sire in Comparison with Progeny of Popular Reference Sires by : Forest Laine Francis
Download or read book Live and Carcass Production Traits for Progeny of an F1 USDA Prime - Yield Grade 1 Carcass Clone Sire in Comparison with Progeny of Popular Reference Sires written by Forest Laine Francis and published by . This book was released on 2019 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cloning of beef carcasses that grade USDA Prime - Yield Grade 1 (P1) has produced a sire that ranked well against high performing bulls from multiple breeds. An F1 (P1 x P1) sire would ideally outperform its high performing parents. A terminal sire study was conducted comparing progeny of an F1 (P1 x P1) sire (AxG1) against progeny (heifers and steers) of four high performing sires of varying breeds {P1 (Alpha); Angus; Simmental; Angus x Simmental}. Production traits included morbidity and mortality frequencies, weaning weight, feedlot arrival weight, and days on feed; carcass traits included frequency of abscessed liver and lung health, quality and yield grade (YG) parameters, total carcass value, and carcass value per cwt. A completely randomized experimental design was used; data was analyzed using a mixed model with a fixed effect of sire and random effects of harvest date, sex, and pen. AxG1 sired heifers had the highest (P
Book Synopsis Genetic Parameters of Body Measurements, Growth and Carcass Characters from Progeny of Selected Beef Sires by : Jerry Morrel Stout
Download or read book Genetic Parameters of Body Measurements, Growth and Carcass Characters from Progeny of Selected Beef Sires written by Jerry Morrel Stout and published by . This book was released on with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetics Abstracts written by and published by . This book was released on 1973 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt: