广州地区西藏小型猪的繁殖行为学表现  

Breeding Performance and Reproductive Behavior of Tibet Mini-Pigs Raised in Guangzhou Area

作　　者：龚宝勇[1] 刘运忠[1] 曾昭智[2] 赵乐[2] 顾为望[2] 

机构地区：[1]广州市医药工业研究所,广州510240 [2]南方医科大学,广州510515

出　　处：《中国实验动物学报》2006年第4期315-317,共3页Acta Laboratorium Animalis Scientia Sinica

基　　金：广东省科研计划项目(编号:2006B60101059)

摘　　要：目的对广州地区西藏小型猪的繁殖性能和繁殖行为进行了观察研究。方法以广州地区雌雄西藏小型猪为研究对象,根据其繁殖卡的详细资料进行分类统计。结果雄性西藏小型猪阴茎首次伸出日龄为(39.50±2.63)d,此时体重为(3.26±0.87)kg;其射精日龄为(65.22±3.69)d,体重为(5.34±1.03)kg。雌性西藏小型猪初情日龄为(142±5.3)d,成年母猪发情周期为(20.35±0.72)d,发情持续期(4.2±0.31)d;其妊娠期约为114 d左右。初产雌性西藏小型猪产仔数为(2.30±0.82)头,2月龄断乳存活率为86.5%;而经产雌性西藏小型猪产仔数为(5.70±1.00)头,其2月龄断乳存活率为91.4%。哺乳期雌性西藏小型猪母性强,护仔行为强烈。结论广州地区西藏小型猪生长发育繁殖正常,产仔率和2月龄存活率等繁殖性能指标与原产地一致。Objective To study the breeding performance and reproductive behavior of Tibet mini-pigs raised in Guangzhou area. Methods Tibet mini-pigs in Guangzhou were observed and statistically classified according to the data of the breeding cards. Result The first time of stretching out of male Tibet mini-pigs was 39.50 ±2.63 day-old and the weight was 3.26 ± 0.87 kg, while their first ejaculation appeared until 65.22±3.69 day-old and the weight was 5.34 ±1.03 kg. The first oestrus of female Tibet mini-pigs was 142 ± 5.3 day-old. The oestrus period of adult female Tibet mini-pigs was 20.35 ± 0.72 days and it lasted 4.2 ± 0.31 days. The gestation period of Tibet mini-pigs was about 114 days. The offspring number per litter of primiparous female Tibet mini-pigs was 2.30 ±0.82 heads and the 2 month ablactation livability was 86.5% ; while the offspring number per litter of multiparous Tibet mini-pig was 5.70 ± 1.00 heads and the 2 month ablactation livability was 91.4%. The female Tibet mini-pigs manifested great maternity during lactation. Conclusion The growth, development and multiplication of Tibet mini-pigs in Guangzhou area are normal, and the important indexes of breeding performance such as the offspring number per litter and 2 month ablactation livability coincided with those of Tibet mini-pigs from their provenance.

关 键 词：西藏小型猪 繁殖 行为 

分 类 号：R332[医药卫生—人体生理学]