EVALUATION OF HOLSTEIN-FRIESIAN DAIRY SIRES FOR CONFORMATION OF THEIR DAUGHTERS

Autor:	L. R. Schaeffer, M. S. Hunt, E. B. Burnside
Rok vydání:	1978
Předmět:	Animal science Food Animals Sire food and beverages Animal Science and Zoology Biology Milk production reproductive and urinary physiology
Zdroj:	Canadian Journal of Animal Science. 58:409-417
ISSN:	1918-1825 0008-3984
DOI:	10.4141/cjas78-053
Popis:	A model is described for evaluating dairy sires for the conformation of their daughters accounting for age at classification, year, classification of the dam, genetic trend, and sire effects. Results of the application of this model to two data sets are presented. Estimates of genetic trend for type traits indicated at least twice as much progress is being made for type as for milk production.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9e9085dd4ed88387675530fa4aac023f https://doi.org/10.4141/cjas78-053 Zobrazit plný text záznamu