干旱区生态环境知识资源中心(Arid): 西北寒旱地区舍饲湖羊生长发育特征研究

Arid

	西北寒旱地区舍饲湖羊生长发育特征研究
其他题名	Performance of Hu sheep in the cold,arid areas of North-West China
	莫负涛 1; 李发弟 2; 王维民 1; 喇永富 1; 张小雪 1; 刘婷 1; 唐德富 1; 乐祥鹏 3; 李飞 3; 李冲 1; 李万宏 3; 肖金玉 3; 谭建华 4; 武得虎 5
来源期刊	草业学报
ISSN	1004-5759
出版年	2017
卷号	26 期号:1 页码:168-177
中文摘要	湖羊是世界上稀有的绵羊地方品种,以多胎、早熟、早期生长发育快、宜舍饲等优良性能而著名。为系统了解湖羊生长发育的基本规律,更好地开发利用湖羊这一优良地方品种资源,本研究以3,6,12和24月龄湖羊公羊为对象,每个时间点随机选择6只,共24只,测定其体重、组织器官及消化道各个部分重量、肠道长度及肉品质相关参数。结果表明,3~6月龄湖羊生长速率最快,6月龄之后逐渐降低;3~6月龄之间心、肝、脾、肺、肾、头蹄和皮的增长强度随着日龄的增大而增长,除头、蹄、皮外,其他内脏器官的生长强度逐渐降低,12月龄之后趋于稳定;头、蹄、皮的生长在6月龄之后趋于稳定,仍然保持较高的生长强度;瘤胃的生长强度始终大于体重生长强度,小肠的生长始终小于体重,而除直肠外,大肠的生长强度与体重相近。6月龄湖羊公羔与12月龄相比屠宰率、眼肌面积无显著差异,而6月龄湖羊公羔背膘厚极显著增高,随着年龄的增长肉色逐渐变暗。综合以上各项指标认为,本试验条件下,6月龄为肥羔生产最佳屠宰日龄。
英文摘要	Hu sheep are one of the worlds rare localised sheep breeds;it is known for high fecundity,early maturity, rapid growth rates and being suitable for stabling.In order to understand the growth and development and enable better utilization of the traits of Hu sheep male sheep 3,6,12and 24months of age were assessed to determine live weight,the weight of different body components including the digestive tract weight,intestinal length,and meat quality traits.Results indicated that Hu sheep grow fastest between 3to 6months of age; after 6months,relative growth rates begin to decline.Organ growth(heart,liver,spleen,lung,kidney,head and feet,skin and wool)increased with age between 3to 6months,though the head,feet,skin and wool were relatively stable,growth of remaining organs gradually reduced becoming stable by age 12months.The growth rate of the rumen was always greater than growth in live weight,while the growth rate of the small intestine was less,with the exception of colorectal growth which was similar to live weight growth.Compared to 12 month old sheep,6month old male Hu sheep have better back fat thickness and eye muscle area with no difference in dress out and loin eye area.Meat colour darkened with age.It was concluded that the optimal age for slaughter was 6months.
中文关键词	湖羊 ; 生长发育 ; 组织器官 ; 胃肠道 ; 肉品质
英文关键词	Hu sheep growth and development visceral organ gastrointestinal tract meat quality
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5898136
来源机构	兰州大学 ; 甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235689
作者单位	1.甘肃农业大学动物科学技术学院, 兰州, 甘肃 730070, 中国; 2.甘肃农业大学动物科学技术学院, 甘肃省肉羊繁育生物技术工程实验室, 兰州, 甘肃 730070, 中国; 3.兰州大学草地农业科技学院, 兰州, 甘肃 730020, 中国; 4.甘肃省肉羊繁育生物技术工程实验室, 甘肃省肉羊繁育生物技术工程实验室, 民勤, 甘肃 733300, 中国; 5.金昌中天羊业有限公司, 金昌, 甘肃 737100, 中国
推荐引用方式 GB/T 7714	莫负涛,李发弟,王维民,等. 西北寒旱地区舍饲湖羊生长发育特征研究[J]. 兰州大学, 甘肃农业大学,2017,26(1):168-177.
APA	莫负涛.,李发弟.,王维民.,喇永富.,张小雪.,...&武得虎.(2017).西北寒旱地区舍饲湖羊生长发育特征研究.草业学报,26(1),168-177.
MLA	莫负涛,et al."西北寒旱地区舍饲湖羊生长发育特征研究".草业学报 26.1(2017):168-177.