Some alternatives to calving date and interval as measures of fertility in beef cattle.

doi:10.2527/1990.6892650x

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Article

Some alternatives to calving date and interval as measures of fertility in beef cattle.

Journal of animal science - 1 Sept 1990

López de Torre G, Brinks J S

Abstract excerpt

Records of 594 calving dates and 493 calving intervals collected from a herd of Retinta beef cows in southwest Spain were studied. Their efficacy as reproductive measures were compared when a long breeding season was utilized. Variables used were date of present calving (DOC), date of subsequent...

Topics

Age Factors
Analysis of Variance
Animals
Cattle
Female
Fertility
Genotype
Least-Squares Analysis
Phenotype
Pregnancy
Seasons

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