Breeding goals and selection criteria for intensive and semi-intensive dairy goat system in Brazil
作者: Fernando Brito LopesArcadio de los Reyes BorjasMarcelo Correia da SilvaOlivardo FacóRaimundo Nonato LôboMaria Clorinda Soares FiorvantiConcepta McManus
作者单位: 1Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Campus II, Goiânia, Brazil
2Embrapa Caprinos e Ovinos, Sobral, Ceará, Brazil
3Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 7712, Porto alegre, Rio Grande do Sul, Brazil
刊名: Small Ruminant Research, 2012, Vol.106 (2-3), pp.110-117
来源数据库: Elsevier Journal
DOI: 10.1016/j.smallrumres.2012.03.011
关键词: CostEconomic valueProfitRevenue
原始语种摘要: Abstract(#br)The aim of this study was to identify traits of socio-economic relevance for intensive and semi-intensive dairy goat production system, to derive economic weights for the breeding goals and to propose selection indices whose criteria are easily collected by dairy goat breeders. The economic value of each trait was calculated as the difference between the average profit before and after the improvement of criteria, after increasing each trait by 1%, keeping the average of other traits unchanged. Eight selection indices were proposed. Four indices (I–IV) were determined for the intensive system and four (V–VIII) for the semi-intensive system. The traits included in each index were: milk production (MP) and lactation length (LL) (I and V); MP, LL, and age at first kidding (AFC)...
全文获取路径: Elsevier  (合作)
影响因子:1.124 (2012)