Additive and non-additive differences in postweaning growth and carcass characteristics of Devon, Hereford, and reciprocal-cross steers
Article Abstract:
Results of an experimental study indicated that carcass weight of steers can be increased by cross breeding without affecting other carcass traits. Post-weaning carcass traits and growth of pure bred Devon and Hereford steers and associated cross-breeds reared under conditions of high-nutrition and low-nutrition were assessed. Four groups of steers, Devon, Hereford, Hereford x Devon and Devon x Hereford were assessed for postweaning growth. Carcass characteristics such as carcass weight and subcutaneous fat were measured at the time of slaughter. Nutritional availability influenced growth rate but did not influence heterosis for slaughter weight.
Publication Name: Journal of Animal Science
Subject: Zoology and wildlife conservation
ISSN: 0021-8812
Year: 1992
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Growth patterns of two lines of Angus cattle selected using predicted growth parameters
Article Abstract:
Linear function analysis of weight data from heavy-mature-weight (Line A) and rapid-maturing (Line K) Angus cattle was conducted to determine and compare the growth patterns of the two lines. Growth patterns and maturing rates were found to be different in the two lines of Angus cattle. Although Line A cattle were heavier across all sampling dates, they were also less mature than Line K cattle of similar age. It was also shown that growth data for the first two years can be used predict mature weight and maturing rate and consequently is useful in planning the breeding program.
Publication Name: Journal of Animal Science
Subject: Zoology and wildlife conservation
ISSN: 0021-8812
Year: 1992
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Selection for postweaning growth in inbred Hereford cattle: the Fort Keogh, Montana line 1 example
Article Abstract:
Selection for growth in cattle breeding programs is still possible in small animal populations. It has been shown that the long term heritability of postweaning growth rates may be effective even in small inbred cattle populations such as the Line 1 Hereford cattle in Fort Keogh, MT. Line breeding and other strategies limiting cattle population may be used in improving the genetic pool of the population and maintain the heritability of the selected trait.
Publication Name: Journal of Animal Science
Subject: Zoology and wildlife conservation
ISSN: 0021-8812
Year: 1992
User Contributions:
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