Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.smallrumres.2011.03.046 |
Phenotypic and seasonal factors influence birth weight, growth rate and lamb mortality in D’man sheep maintained under intensive management in Tunisian oases | |
Chniter, Mohamed1,2,4,6; Hammadi, Mohamed1; Khorchani, Touhami1; Krit, Riadh3; Lahsoumi, Belgacem3; Ben Sassi, Mohsen3; Nowak, Raymond4,5,6,7; Ben Hamouda, Mohamed8 | |
通讯作者 | Chniter, Mohamed |
来源期刊 | SMALL RUMINANT RESEARCH
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ISSN | 0921-4488 |
EISSN | 1879-0941 |
出版年 | 2011 |
卷号 | 99期号:2-3页码:166-170 |
英文摘要 | Growth and mortality rates of D’man lambs from an accelerated lambing management at the breeding Station of Chenchou of Gabes (Tunisia) are reported using records collected between 2004 and 2009. Lambs born in spring were consistently the heaviest at birth, at 30 and 70 days of age with the greatest average daily gains compared to those born in winter, autumn and summer. Birth weights were affected by litter size, ewe age and lambs from older ewes (2-10 years) grew faster than lambs born to young ewe (1 year). The overall mortality from birth to 70 days of age was 13.4%. Of all the total losses, 41% of the lambs died within 10 days of birth, 29% died between 10 and 30 days of age and 30% between 30 and 70 days. Mortality rate was significantly higher in winter (23.5%) than in spring (12.3%), autumn (10.2%) and summer (9.5%). Lambs in the low-weight category died more frequently (52.2%) than lambs from medium-weight (24.4%) to high-weight (1.8%) categories. Season, birth type and dam age are an important source of growth variation. The significant risk factors identified for mortality were season (winter), birth type (multiple) and weight class (<= 1.5 kg). (C) 2011 Elsevier B.V. All rights reserved. |
英文关键词 | D’man Lamb Birth Weight Growth Mortality Season Tunisian oases |
类型 | Article |
语种 | 英语 |
国家 | Tunisia ; France |
收录类别 | SCI-E |
WOS记录号 | WOS:000294525300014 |
WOS关键词 | LATE PREGNANCY ; RISK-FACTORS ; SURVIVAL ; COLOSTRUM ; NUTRITION ; BREED ; EWES |
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/2XILL650/170547 |
作者单位 | 1.Inst Reg Arides, Lab Elevage & Faune Sauvage, Medenine 4100, Tunisia; 2.Inst Super Agron Chott Mariem, Sousse 4042, Tunisia; 3.Off Elevages & Paturages, Tunis 2020, Tunisia; 4.INRA, Physiol Reprod & Comportements UMR85, F-37380 Nouzilly, France; 5.CNRS, Physiol Reprod & Comportements UMR6175, F-37380 Nouzilly, France; 6.Univ Tours, F-37041 Tours, France; 7.Inst Francais Cheval & Equitat, F-37380 Nouzilly, France; 8.Inst Rech & Enseignement Super Agr, Tunis 2020, Tunisia |
推荐引用方式 GB/T 7714 | Chniter, Mohamed,Hammadi, Mohamed,Khorchani, Touhami,等. Phenotypic and seasonal factors influence birth weight, growth rate and lamb mortality in D’man sheep maintained under intensive management in Tunisian oases[J],2011,99(2-3):166-170. |
APA | Chniter, Mohamed.,Hammadi, Mohamed.,Khorchani, Touhami.,Krit, Riadh.,Lahsoumi, Belgacem.,...&Ben Hamouda, Mohamed.(2011).Phenotypic and seasonal factors influence birth weight, growth rate and lamb mortality in D’man sheep maintained under intensive management in Tunisian oases.SMALL RUMINANT RESEARCH,99(2-3),166-170. |
MLA | Chniter, Mohamed,et al."Phenotypic and seasonal factors influence birth weight, growth rate and lamb mortality in D’man sheep maintained under intensive management in Tunisian oases".SMALL RUMINANT RESEARCH 99.2-3(2011):166-170. |
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