NDLI: Performance of Hereford and two-breed rotational crosses of Hereford with Angus and Simmental cattle: I. Calf production through weaning.

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Performance of Hereford and two-breed rotational crosses of Hereford with Angus and Simmental cattle: I. Calf production through weaning.

Content Provider	Semantic Scholar
Author	Marshall, Dawn Marie Monfore, Michael Dinkel, Charles
Copyright Year	1990
Abstract	Cow size, reproductive traits and calf performance through weaning were evaluated in a range environment for Simmental (S) x Hereford (H) and Angus (A) x H crosses in two-breed rotations and straightbred H. Data were grouped into seven dam breed categories: straightbred Hereford (H), crossbred F1 S x H cows (SH), S x H cows of low percentage H (SHS), S x H cows of high percentage H (HSH), F1 A x H cows (AH), A x H cows of low percentage H (AHA) and A x H cows of high percentage H (HAH). Straightbred H, SH, AH, SHS and AHA cows were mated to H bulls, HSH cows were mated to S bulls and HAH cows were mated to A bulls. Cows in the SHS and AHA groups ranged from 1/4 to 3/8 H and their calves from 5/8 to 11/16 H. Cows within the HSH and HAH groups ranged from 5/8 to 3/4 H and their calves from 5/16 to 3/8 H. Cow age ranged from 3 to 10 yr. Simmental-cross cows were heavier and taller and produced heavier calves at birth and weaning than A-cross. Pregnancy rate, calf birth date and percentage of difficult births did not vary significantly among dam breed groups. Within the A x H and S x H rotations, dam breed group rankings for calf birth weight were inverse to rankings for proportion of H in the breed makeup of the calf.(ABSTRACT TRUNCATED AT 250 WORDS)
File Format	PDF HTM / HTML
DOI	10.2527/1990.68124051x
PubMed reference number	2286547
Journal	Medline
Volume Number	68
Issue Number	12
Journal	Journal of animal science
Alternate Webpage(s)	https://www.animalsciencepublications.org/publications/jas/pdfs/68/12/4051
Alternate Webpage(s)	https://doi.org/10.2527/1990.68124051x
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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