Moaeen-ud-Din M, Yand L G, Chen S L, Zhang Z R, Xiao J Z, Wen Q Y, Dai M
College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070 Hubei, PR China.
Trop Anim Health Prod. 2008 Jan;40(1):17-23. doi: 10.1007/s11250-007-9043-z.
The aim of the current study was to estimate reproductive parameters of Matou goat to evaluate a meat breed. Data on 2,560 kids from 1,197 kidding records of 638 does and on puberty of 546 females kids were collected from farmer household herds of Matou goats in six counties of Shiye city under Hubei Province in China. Statistical analyses on puberty, estrus, gestation length (GL), litter size (LS) and survival rate (SR) of kids at puberty were performed with software Genstat 5 (Release 3.1) by using descriptive statistics and regression models. The results showed that age at puberty of female kids was 108.4+/-19.1 days while estrus duration and cycle averaged 58.6+/-15.9 hours and 19.7+/-1.5 days respectively. Gestation length (GL) and litter size (LS) averaged 150+/-7.4 days and 2.14+/-0.9 respectively with 90.8% of survival rate (SR) of kids. GL was unassociated with parity, but delayed as LS increased. SR of kids at birth differed remarkably among parity 1 to 5, decreased significantly at parity 6 to 7, and then increased at 8th parity. In Matou goat over all twinning and triplet percentage was 45.4 percent and 16.3 percent whereas percentage of single birth was 27.4 percent. As twins and triplets birth rate is considerably higher in Matou goat so, this breed can be recommended to other parts of China and the world having similar climatic conditions.
本研究旨在评估马头山羊这一肉用品种的繁殖参数。在中国湖北省十堰市六个县的马头山羊农户养殖群体中,收集了来自638只母羊1197次产羔记录的2560只羔羊的数据,以及546只雌性羔羊的初情期数据。使用Genstat 5软件(版本3.1),通过描述性统计和回归模型对初情期、发情、妊娠期长度(GL)、产仔数(LS)和初情期羔羊成活率(SR)进行了统计分析。结果表明,雌性羔羊初情期年龄为108.4±19.1天,发情持续时间和周期平均分别为58.6±15.9小时和19.7±1.5天。妊娠期长度(GL)和产仔数(LS)平均分别为150±7.4天和2.14±0.9,羔羊成活率(SR)为90.8%。GL与胎次无关,但随LS增加而延长。出生时羔羊的SR在第1至5胎之间差异显著,在第6至7胎时显著下降,然后在第8胎时上升。在马头山羊中,总体双羔和三羔百分比分别为45.4%和16.3%,单羔百分比为27.4%。由于马头山羊的双羔和三羔出生率相当高,因此该品种可推荐给中国其他地区以及气候条件相似的世界其他地区。