Author: Jamie Fred WilliamsPublisher:
ISBN:
Category : Cattle breeds
Languages : en
Pages : 162
Book Description
Feedlot Performance and Carcass Characteristics of Charolais, Hereford and Brangus Crossbred Cattle
Author: Jamie Fred WilliamsPublisher:
ISBN:
Category : Cattle breeds
Languages : en
Pages : 162
Book Description
Response of Feedlot and Carcass Characteristics to Selection and Crossbreeding
Author: Donna Jo CoxPublisher:
ISBN:
Category : Beef cattle
Languages : en
Pages : 270
Book Description
Feedlot Performance and Carcass Traits of Angus, Brahman, Charolais, and Reciprocal F1 Crosses of the Three Breeds
Author: Comparison of Feedlot Performance, Carcass Merit and Chemical Composition of Crossbred Cattle
Author: Samuel Ruben GarciaPublisher:
ISBN:
Category :
Languages : en
Pages : 172
Book Description
Feedlot performance, carcass merit and chemical composition were compared using Waguli, Brangus, Hereford x Tuli and Wagyu x Crossbred Gene Combination (CGC) breeds. Steers were penned in the following manner: 6 Waguli steers, 6 Hereford x Tuli, 6 Wagyu x CGC and 8 Brangus. There was a significant difference (P
Efficiency and Profit Differences of Angus, Charolais and Hereford Cattle Varying in Size and Growth
Author: V. H. BrungardtPublisher:
ISBN:
Category : Aberdeen-Angus cattle
Languages : en
Pages : 8
Book Description
Feedlot Performance, Carcass and Palatability Traits, as Well as Subsequent Economic Relevance in Calf-fed and Yearling Holsteins and Angus Steers
Author: Cassie S. AbneyPublisher:
ISBN:
Category : Beef cattle
Languages : en
Pages : 214
Book Description
Efficiency and Profit Differences of Angus, Charolais and Hereford Cattle Varying in Size and Growth
Author: V. H. BrungardtPublisher:
ISBN:
Category : Aberdeen-Angus cattle
Languages : en
Pages : 8
Book Description
Inheritance and Interrelations of Live Performance and Carcass Characteristics in Beef Cattle
Author: Robert B. ChurchPublisher:
ISBN:
Category : Beef cattle
Languages : en
Pages : 0
Book Description
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.
Feedlot Performance and Carcass Characteristics of Brahman-European Crossbred and Hereford Carpenter
Author: Frank Sloan BakerPublisher:
ISBN:
Category : Beef cattle
Languages : en
Pages : 14
Book Description
Growth and Carcass Characteristics of Crossbred Calves
Author: Connell Jean BrownPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 32
Book Description