A repeatability test-day animal model was used to investigate heritabilities of somatic cell score (SCS) and milk production traits in Valle del Belice sheep. The heritability estimate for SCS falls within the range reported in literature (0.14±0.03), while estimates for milk production and composition traits were below those obtained by others, 0.12±0.03, 0.09±0.02, 0.14±0.03, 0.14±0.03, and 0.12±0.03, respectively, for milk yield, fat %, fat yield, protein %, and protein yield. Flock-test-day had a substantial effect on milk production traits but not on SCS. These results provide the basic parameters required for discussion of selection strategies and objectives in Valle del Belice sheep.

RIGGIO V, FINOCCHIARO R, VAN KAAM JBCHM, PORTOLANO B, BOVENHUIS H (2006). Test-Day Model Heritabilities for somatic cvell score and production traits in primiparous Valle del Belice sheep. In 8th World Congress on Genetics Applied to Livestock Production (pp.1-4). BELO HORIZONTE, MG, BRASIL : 8WCGALP.

Test-Day Model Heritabilities for somatic cvell score and production traits in primiparous Valle del Belice sheep

RIGGIO, Valentina;FINOCCHIARO, Raffaella;PORTOLANO, Baldassare;
2006-01-01

Abstract

A repeatability test-day animal model was used to investigate heritabilities of somatic cell score (SCS) and milk production traits in Valle del Belice sheep. The heritability estimate for SCS falls within the range reported in literature (0.14±0.03), while estimates for milk production and composition traits were below those obtained by others, 0.12±0.03, 0.09±0.02, 0.14±0.03, 0.14±0.03, and 0.12±0.03, respectively, for milk yield, fat %, fat yield, protein %, and protein yield. Flock-test-day had a substantial effect on milk production traits but not on SCS. These results provide the basic parameters required for discussion of selection strategies and objectives in Valle del Belice sheep.
Settore AGR/17 - Zootecnica Generale E Miglioramento Genetico
8th World Congress on Genetics Applied to Livestock Production
Belo Horizonte:Instituto Prociencia, 2006
13-18 August 2006
2006
4
A stampa
http://www.wcgalp8.org.br/wcgalp8/index.html CD ROM Communication n.02-02
RIGGIO V, FINOCCHIARO R, VAN KAAM JBCHM, PORTOLANO B, BOVENHUIS H (2006). Test-Day Model Heritabilities for somatic cvell score and production traits in primiparous Valle del Belice sheep. In 8th World Congress on Genetics Applied to Livestock Production (pp.1-4). BELO HORIZONTE, MG, BRASIL : 8WCGALP.
Proceedings (atti dei congressi)
RIGGIO V; FINOCCHIARO R; VAN KAAM JBCHM; PORTOLANO B; BOVENHUIS H
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/28950
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