Factors influencing does milk production and their implication for kit performance in rabbits

N. Assan
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引用次数: 2

Abstract

Rabbit milk yield and chemical composition is determined by various factors. Growth rate and body weight gain are good indicators of kitsdoe’s maternal behavior, especially in milk production. Generally, it is pronounced that growth and survival of kits towards weaning is the most important stage related to does milking potential. However, it is important to note that lactation curves vary with breed, notwithstanding milk production being influenced by various factors. Clearly, it has been observed that apart from genotype being a dominant factor in influencing milk production in rabbits, there are other factors such as nutrition, parity, stage of lactation, litter size etc. which have also been implicated. In this aspect, appropriate knowledge on factors that influence does milking capacity is essential for improved performance in rabbits. Provision of adequate nutritional requirements of nursed kits through dam’s milk is essential for maximum growth, development and survival. In the early stage of growth until weaning, does milk is the exclusive source of nutrients to support the pertinent needs for maintenance and growth in rabbits. The accelerated growth preceding weaning can be ascribed to the doe’s energy rich milk that is significant in both fat and protein and low lactose. An increase in milk intake, can improve kits growth traits and may also transcribe to heavier final market weight and financial gains. It is reasonable to suggest that to enhance kits nutritional intake, the mother should produce adequate milk. On the other hand, milk production increases with increased litter size, while high total milk yield is registered in winter followed by autumn. Milk production increase firmly during the seven parity and decline from that time forward. Crossbreeding promote favorable and positive heterotic influence on milk yield and composition. There is a predictable positive correlation of does milking capacity and productive traits. The purpose of this review is to discuss the factors that influence milk production in does and their implication for rabbit performance.
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影响家兔产奶量的因素及其对试剂盒生产性能的影响
兔奶量和化学成分是由多种因素决定的。生长速度和体重增加是母性行为的良好指标,特别是在产奶量方面。一般来说,断奶仔猪的生长和存活是与奶牛挤奶潜力相关的最重要阶段。然而,重要的是要注意,尽管产奶量受到各种因素的影响,但泌乳曲线因品种而异。显然,已经观察到,除了基因型是影响家兔产奶量的主要因素外,还有其他因素,如营养、胎次、哺乳阶段、窝产仔数等也与之有关。在这方面,适当了解影响奶牛泌乳能力的因素对提高家兔生产性能至关重要。通过坝的奶提供足够的营养需求,对最大限度地生长,发育和生存是必不可少的。从生长早期到断奶,牛奶是兔子维持和生长所需营养的唯一来源。断奶前的加速生长可归因于母鹿的能量丰富的牛奶,脂肪和蛋白质含量都很高,乳糖含量也很低。增加牛奶摄入量,可以改善雏鸡的生长性状,也可能转化为更重的最终市场体重和经济收益。我们有理由建议,为提高雏鸡的营养摄入量,母鸭应产足乳汁。另一方面,产奶量随着产仔数的增加而增加,总产奶量在冬季高,其次是秋季。产奶量在七胎期间稳步增加,从那时起下降。杂交对产奶量和产奶量产生有利和正向的杂种优势影响。奶牛产奶量与生产性状呈显著正相关。本文旨在探讨影响奶牛产奶量的因素及其对家兔生产性能的影响。
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