Effects of Type and Breed of British, Zebu and Dairy Cattle on Production, Palatability and Composition. I. Rate of Gain, Feed Efficiency and Factors Affecting Market Value2

Cole, J. W.; Ramsey, C. B.; Hobbs, C. S.; Temple, R. S.

doi:10.2527/jas1963.223702x

Cited by 41 publications

(18 citation statements)

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“…Hereford and the Angus bulls that were shown in the present study have been noted before (Damon et al 1960;Butler et al 1962;Cole et al 1963Cole et al , 1964Ramsey et al 1965) (Palsson 1955). By contrast, the value ofb for increase in length was near the theoretical value of 3.…”

Section: Many Of the Differences Between Thesupporting

confidence: 58%

Carcass and Empty Body Composition of Hereford and Angus Bulls From Lines Selected for Rapid Growth on High-Energy or Low-Energy Deits

Bailey¹,

Lawson²

1989

Can. J. Anim. Sci.

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Section: Many Of the Differences Between Thesupporting

confidence: 58%

Carcass and Empty Body Composition of Hereford and Angus Bulls From Lines Selected for Rapid Growth on High-Energy or Low-Energy Deits

Bailey¹,

Lawson²

1989

Can. J. Anim. Sci.

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“…In contrast to these findings, Crockett et al (1979) and Pringle (1989) reported no effect of breed type on quality grade when comparing steers sired by bulls of Continental, Brahman, and Brahmanderivative breeds. However, others (Carpenter et al, 1961;Cole et al, 1964;Koch et al, 1976;Young et al, 1978) reported that Brahman and Continental breeding resulted in a lower quality grade than British breeding. Characteristics of the chuck differed little by breed of sire when slaughtered at comparable levels of fat at the 12th to 13th rib interface (Table 2).…”

Section: Resultsmentioning

confidence: 99%

Factors influencing intermuscular fat and other measures of beef chuck composition

Christensen

Johnson

West

et al. 1991

Journal of Animal Science

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Carcasses from 59 steers produced from the mating of Braford, Simbrah, Senepol, and Simmental bulls to Brahman- and Romana Red-sired cows and Brahman bulls mated to Angus cows were used in this study. Effects of sire breed and feeding calves vs yearlings on fat depots in the chuck, when steers were fed to 1.0 cm external fat, were determined. Breed of sire and feeding calves vs yearlings had no effect (P greater than .05) on percentage of intermuscular fat. However, carcasses from Braford-sired steers had a higher (P less than .05) percentage of dissectable subcutaneous fat on the chuck than did those from other breed groups. Carcasses from Simmental-sired steers were superior (P less than .05) to those from Braford-sired steers in USDA yield grade and had a higher average marbling score (P less than .05) than the Simbrah-sired group. Estimated kidney, pelvic, and heart (KPH) fat was higher (P less than .05) in carcasses from Brahman-, Simbrah-, and Senepol-sired steers than in Braford-sired steers. Steers fed as calves had higher percentages (P less than .05) of KPH fat and major chuck muscles than did those fed as yearlings. The best single predictor of percentage of intermuscular fat within the chuck was adjusted fat over the ribeye (R2 = .46).

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“…Generally, Angus cattle ranked the highest in their ability to marble and grade (Demond et al, 1960;Jeremiah et al, 1970;Freedeen at al., 1972;Urick et al, 1974). In most experiments involving dairy and beef crossbreeding, Holstein demonstrated a lower marbling scores and quality grade than Angus and Hereford (Branaman et al, 1962;Cole et al, 1963;Young et al, 1978). In some instances (Bertrand, 1981), where the feeding period is extended as long as 13.5 months, the difference between Holstein and Hereford was not important.…”

Section: Breed Direct Additive Effectsmentioning

confidence: 98%

“…When data were adjusted for weight differences, g'^ remained higher and significant (P<.05), and despite lack of significant difference between breeds, re-ranking was noticed between g\ and g'^,. Although some reports indicate a larger LMA in Holstein than Hereford (Dean et al, 1976), other results seem inconsistent, as values ranged from a better performance of Hereford and Angus than Holsteins (Cole et al, 1963;Martin and Wilson, 1974) to lack of significant differences (Lusby et al, 1975;Wyatt et al, 1977).…”

Section: Longissimus Muscle Areamentioning

confidence: 99%

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Selection practices and evaluation of growth and composition in three lines of synthetic beef cattle

Hassen

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Data in the present study came from two separate beef cattle breeding projects at Iowa State University. Data set-I included growth and carcass information of progeny in the small, medium, and large lines of synthetic cattle. Progeny were bom during the years 1978 through 1990 at Rhodes and McNay research farms. Data were used to evaluate selection practices in the three synthetic lines, to evaluate effects of some crossbreeding parameters on carcass traits, and to estimate genetic parameters and genetic trends for carcass traits. Data set-II included carcass and serially measured live-animal traits collected over a 6-year period (1991-1996). Most of the data came from progeny of purebred Angus and Simmental sires with known expected progeny difference and synthetic females from a previous project. Data set-II was used to study effects of sex and breed on growth and composition of feedlot cattle and to determine the best strategy to adjust serially measured traits to a constant age end point. The overall mean generation interval was 4.11 years. When averaged by line, 1.82, 1.47, and 1.28 generations of selection was made in the small, medium, and large lines, respectively. Mean actual sire index differentials per generation were, 1.28,-.47, and .84o for the small, medium, and large lines, respectively. There was a significant (P < .05) difference in direct additive effect between Jersey, Angus, and the Simmental breeds for most of the carcass traits considered. However, differences in breed maternal, average individual heterosis, and average maternal heterosis were not different from zero (P > .10). Heritability of hot carcass weight, dressing percentage, longissimus muscle area, fat thickness, and percentage of kidney, pelvic, and heart fat in the small line were, .30, .09, .21, .34, and .15, respectively. The respective values in the medium line were, .52, .35, .33, .29, and .07. Heritability values in the large line were in the order of .31,. 18,. 17, .31, and .18, vii respectively. Sire selection based on weaning indices showed a significaat (P < .05) genetic change for some of the carcass traits. It was concluded that index equations designed to improve beef carcasses need to incorporate carcass information in an index. Analysis of serially measured fat thickness, longissimus muscle area, body weight, hip height, and ultrasound percentage intramuscular fat showed a limitation in the use of growth models based on pooled data. Therefore, it was concluded that regression parameters from a withinanimal regression of a serially measured trait on age, averaged by sex and breed, are the best choice in describing growth and adjusting data to a constant age end point. at Rhodes were, 1.28,-.57 and .92

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Effects of Type and Breed of British, Zebu and Dairy Cattle on Production, Palatability and Composition. I. Rate of Gain, Feed Efficiency and Factors Affecting Market Value2

Cited by 41 publications

References 0 publications

Carcass and Empty Body Composition of Hereford and Angus Bulls From Lines Selected for Rapid Growth on High-Energy or Low-Energy Deits

Carcass and Empty Body Composition of Hereford and Angus Bulls From Lines Selected for Rapid Growth on High-Energy or Low-Energy Deits

Factors influencing intermuscular fat and other measures of beef chuck composition

Selection practices and evaluation of growth and composition in three lines of synthetic beef cattle

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