Abstract
Two data sets were utilized to evaluate interaction between calf sex and calf genetic type for preweaning performance of calves varying in percentage (0, 50, 100) Brahman breeding. Data set I involved birth weight, preweaning average daily gain, and weaning weight records on 3562 Angus (AA), Brahman ♂ × Angus ♀ (BA) and Brahman (BB) calves; data set II consisted of birth weight, preweaning average daily gain and weaning weight records on 3752 Hereford (HH), Brahman ♂ × Hereford ♀ (BH) and Brahman (BB) calves. For both data sets, the calf sex × calf genetic type interaction was significant (P<0.01) except for preweaning average daily gain in data set II. In all cases, the significant interactions were represented by a change in magnitude rather than a change in rank for the two sexes of each calf genetic type. These results indicate that sex differences are expected to be much greater for Brahman-sired BA and BH calves than for calves of 0% (AA or HH) or 100% (BB) Brahman breeding. These increased sex differences are of greatest importance for birth weight because of the relationship that exists between birth weight and calving difficulty.
Original language | English |
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Pages (from-to) | 145-148 |
Number of pages | 4 |
Journal | Professional Animal Scientist |
Volume | 13 |
Issue number | 3 |
DOIs | |
State | Published - Sep 1 1997 |
Bibliographical note
Publisher Copyright:© 1997 American Registry of Professional Animal Scientists.
Keywords
- Brahman
- Cattle
- Interaction
- Sex
ASJC Scopus subject areas
- Food Science
- Animal Science and Zoology