Arid
DOI10.1016/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
ISSN0921-4488
EISSN1879-0941
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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