CAJ | 학술논문

对引入的娟姗牛与西藏本地黄牛杂交一代的调查分析表明：（1）西藏本地黄牛经杂交改良后，胸围、十字部高等主要体尺指标都有极显著提高；初生重和各月龄体重均有显著提高；（2）调查15头初产牛产奶量发现，杂交母牛的产奶量比本地牛高1594.1kg；调查50头市场屠宰牛发现，饲养一头杂种牛的经济收入比本地牛高2100余元。采用娟姗牛对当地黄牛进行改良，不仅可以改善西藏本地黄牛体型小、生产性能低、饲养年限长等缺陷，还对提高西藏黄改的经济效益和增加农牧民收入有着重大的现实意义。
대인입적연산우여서장본지황우잡교일대적조사분석표명：（1）서장본지황우경잡교개량후，흉위、십자부고등주요체척지표도유겁현저제고；초생중화각월령체중균유현저제고；（2）조사15두초산우산내량발현，잡교모우적산내량비본지우고1594.1kg；조사50두시장도재우발현，사양일두잡충우적경제수입비본지우고2100여원。채용연산우대당지황우진행개량，불부가이개선서장본지황우체형소、생산성능저、사양년한장등결함，환대제고서장황개적경제효익화증가농목민수입유착중대적현실의의。
The investigation for hybrid improvement of Jersey cattle crossbreeding with Tibet local yellow cattle was conduct in this study. The results showed that:(1)The chest, cross department of higher body measurements for the F1generation have signiifcantly improved, birth weight and body weight were signiifcantly improved. (2)By the investigation for 15 primiparous cows, milk production of a crossbred cow was 1594.1kg higher than a local cattle. The survey for 10 market slaughter cattle showed that the economic beneift of a hybrid cattle raising was 2100 yuan more thana local cattle. The crossbreeding of Jersey cattle with Tibet local yellow cattle can not only improve the smaller body type, lower production performance, longer breeding years of the local yellow cattle, but also improve economic efifciency and increase the income of farmers in Tibet, it has great realistic signiifcance.