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首页> 美国卫生研究院文献>Asian-Australasian Journal of Animal Sciences >A Review of Recent Developments in Buffalo Reproduction — A Review
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A Review of Recent Developments in Buffalo Reproduction — A Review

机译：布法罗繁殖的最新发展回顾—回顾

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The buffalo is an important livestock resource in several countries of South Asia and the Mediterranean regions. However, reproductive efficiency is compromised due to known problems of biological and management origins, such as lack of animal selection and poor nutrition. Under optimal conditions puberty is attained at 15 to 18 months in river buffalo, 21 to 24 months in swamp buffalo and is influenced by genotype, nutrition, management and climate. However, under field conditions these values deteriorate up to a significant extant. To improve reproductive efficiency, several protocols of oestrus and ovulation synchronization have been adopted from their use in commercial cattle production. These protocols yield encouraging pregnancy rates of (30% to 50%), which are comparable to those achieved in buffaloes bred at natural oestrus. The use of sexed semen in buffalo heifers also showed promising pregnancy rates (50%) when compared with conventional non-sexed semen. Assisted reproductive technologies have been transferred and adapted to buffalo but the efficiency of these technologies are low. However, these latest technologies offer the opportunity to accelerate the genetic gain in the buffalo industry after improving the technology and reducing its cost. Most buffaloes are kept under the small holder farming system in developing countries. Hence, future research should focus on simple, adoptable and impact- oriented approaches which identify the factors determining low fertility and oestrus behaviour in this species. Furthermore, role of kisspeptin needs to be explored in buffalo.
机译：在南亚和地中海地区的一些国家，水牛是重要的牲畜资源。但是，由于已知的生物学和管理起源问题，例如缺乏动物选择和营养不良，生殖效率受到损害。在最佳条件下，水牛在15到18个月达到青春期，沼泽水牛在21到24个月达到青春期，并且受基因型，营养，管理和气候的影响。但是，在野外条件下，这些值会严重恶化。为了提高生殖效率，从商业牛生产中使用了一些发情和排卵同步方案。这些方案可产生令人鼓舞的怀孕率（30％至50％），与自然发情所繁殖的水牛的怀孕率相当。与常规的无性别精液相比，在水牛小母牛中使用有性精液的妊娠率也很高（50％）。辅助生殖技术已经转让并适应了水牛，但是这些技术的效率很低。但是，这些最新技术在改进技术并降低其成本之后，为加速水牛业的遗传增益提供了机会。在发展中国家，大多数水牛属于小农耕作制度。因此，未来的研究应侧重于简单，可采用和面向影响的方法，这些方法可确定决定该物种低生育力和发情行为的因素。此外，需要在水牛中探索kisepteptin的作用。

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