Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.smallrumres.2014.05.009 |
Genetic parameters for growth and reproductive traits of Morada Nova sheep kept by smallholder in semi-arid Brazil | |
Shiotsuki, Luciana1; de Oliveira, Danielle Pernambuco2; Braga Lobo, Raimundo Nonato1; Faco, Olivardo1,2 | |
通讯作者 | Shiotsuki, Luciana |
来源期刊 | SMALL RUMINANT RESEARCH
![]() |
ISSN | 0921-4488 |
EISSN | 1879-0941 |
出版年 | 2014 |
卷号 | 120期号:2-3页码:204-208 |
英文摘要 | The objective of the present study was to estimate genetic parameters for growth and reproductive traits of Morada Nova sheep reared by smallholder farmers in the semi-arid northeastern region of Brazil. Data from 11 participating flocks, between 2007 and 2011, were used for the estimation of (co)variance components and genetic parameters for birth weight (BW), weight at weaning adjusted for 112 days of age (WW), average daily weight gain from birth to weaning (ADG), days to lambing (DL), lambing interval (LI), total litter weight at birth (LWB), total litter weight at weaning (LWW) and the ratio between total litter weight at birth and weaning and metabolic weight of the dam (LWB/MW and LWW/MW, respectively). The direct heritabilities obtained by one-trait analysis were 0.19, 0.14, 0.11, 0.13, 0.0, 0.44, 0.19, 0.41, 0.15, respectively for BW, WW, ADG, DL, LI, LWB, LWW, LWB/MW and LWW/MW. The direct heritabilities for BW and WW obtained by two-trait analysis were similar to those estimated by one-trait analysis. However, the direct heritabilities for LWB, LWW and LWW/MW obtained by two-trait analysis were higher than those estimated by one-trait analysis. The genetic correlation between BW and WW were 0.75 and between LWB, LWW and LWW/MW were 0.8, 0.9 and 1.0, respectively. In conclusion, except for LI, there is genetic variability that can be explored by direct and indirect selection to obtain genetic gains in the flocks participating in the Nucleus of Participatory Breeding of Morada Nova Sheep. (C) 2014 Elsevier B.V. All rights reserved. |
英文关键词 | (Co)variances Genetic correlations Genetic parameters Heritability |
类型 | Article |
语种 | 英语 |
国家 | Brazil |
收录类别 | SCI-E |
WOS记录号 | WOS:000340337100004 |
WOS关键词 | HAIR SHEEP ; COMPONENTS |
WOS类目 | Agriculture, Dairy & Animal Science |
WOS研究方向 | Agriculture |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/184969 |
作者单位 | 1.Embrapa Goats & Sheep, Dept Anim Breeding, BR-62070970 Sobral, CE, Brazil; 2.State Univ Acarau Valley, Dept Anim Sci, BR-62040370 Sobral, CE, Brazil |
推荐引用方式 GB/T 7714 | Shiotsuki, Luciana,de Oliveira, Danielle Pernambuco,Braga Lobo, Raimundo Nonato,et al. Genetic parameters for growth and reproductive traits of Morada Nova sheep kept by smallholder in semi-arid Brazil[J],2014,120(2-3):204-208. |
APA | Shiotsuki, Luciana,de Oliveira, Danielle Pernambuco,Braga Lobo, Raimundo Nonato,&Faco, Olivardo.(2014).Genetic parameters for growth and reproductive traits of Morada Nova sheep kept by smallholder in semi-arid Brazil.SMALL RUMINANT RESEARCH,120(2-3),204-208. |
MLA | Shiotsuki, Luciana,et al."Genetic parameters for growth and reproductive traits of Morada Nova sheep kept by smallholder in semi-arid Brazil".SMALL RUMINANT RESEARCH 120.2-3(2014):204-208. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。