EFFECTS OF NON-GENETIC FACTORS ON PRE-WEANING GROWTH TRAITS IN DORPER SHEEP MANAGED INTENSIVELY IN CENTRAL MEXICO

被引：0
|
作者：
Mellado, Jesus [1 ]
Marin, Victor [2 ]
Reyes-Carrillo, Jose L. [3 ]
Mellado, Miguel [1 ]
Gaytan, Leticia [3 ]
de los Angeles De Santiago, Ma. [3 ]
机构：
[1] Univ Autonoma Agr Antonio Narro, Dept Nutr Anim, Calzada Antonio Narro 1923, Saltillo 25315, Coahuila, Mexico
[2] Inst Tecnol Torreon, Dept Ingn, Antigua Carretera San Pedro S-N, Torreon 27170, Coahuila, Mexico
[3] Univ Autonoma Agr Antonio Narro, Dept Prod Anim, Perifer Raul Lopez Sanchez & Carretera Santa Fe S, Torreon 27054, Coahuila, Mexico
来源：
ECOSISTEMAS Y RECURSOS AGROPECUARIOS | 2016年 / 3卷 / 08期
关键词：
Birth weight; weaning weight; pre-weaning; weight gain; growth traits; Dorper lambs;
D O I：
暂无
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
The objective of this study was to determine the non-genetic factors which affect growth traits in Dorper lambs under intensive conditions. Nine hundred and ninety birth weight records and 851 weaning weight data from a commercial sheep farm were used. A model containing the effects of year of birth, season of birth, litter size, dams' age and gender was used for identification of factors affecting growth traits. Birth weight was highest (p < 0.05) in summer and lowest in winter and spring. Male lambs excelled females in birth weight, weaning weight, and average daily gain. Young dams produced offspring with a lower (p < 0.05) birth weight and weaning weight than older ewes As a conclusion, important influences of environmental factors on growth traits were identified for Dorper lambs.
引用
收藏
页码：229 / 235
页数：7
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