Efeitos genéticos e ambientais sobre a idade à primeira concepção de fêmeas suínas Estimates of genetic and environmental effects on age at first conception of gilts

Autor:	A. Cavalcante Neto, J.F. Lui, J.L.R. Sarmento, M.N. Ribeiro, J.M.C. Monteiro, C. Fonseca, H. Tonhati
Jazyk:	English<br />Portuguese
Rok vydání:	2008
Předmět:	suíno fatores não genéticos parâmetro genético puberdade swine non genetic effects genetic parameter puberty Animal culture SF1-1100
Zdroj:	Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Vol 60, Iss 2, Pp 499-502 (2008)
Druh dokumentu:	article
ISSN:	0102-0935 1678-4162 71559426
DOI:	10.1590/S0102-09352008000200035
Popis:	The genetic and environmental factors that affect age at first conception (AFC) of gilts were evaluated, using 466 observations of Dalland animals (C-40). The software program MTDFREML was used to assess the genetic parameters on an animal model that included as fixed effect, contemporary group and, as random effects, the additive genetic, the common litter and the error. Mean value of AFC was 241.12±25.9 days, with CV of 8.5 %. Variance analysis showed that year (P
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/d89c71559426441b814926d0617b2740 Zobrazit plný text záznamu View record in DOAJ