| 1. | Influences of - carotene and vitamin a on sow performance
对母猪繁殖性能的影响 |
| 2. | Investigaton on reproductive performances of jintang black goat
金堂黑山羊繁殖性能的研究 |
| 3. | Effects of ratio of lysine to crude protein in diet on reproductive performance of lactating sow
日粮赖氨酸与粗蛋白质比例对哺乳母猪繁殖性能的影响 |
| 4. | Strategies for successful sow nutrition must pay attention to long term reproductive performance
成功的母猪营养饲喂体制必须注意到长期的繁殖性能。 |
| 5. | This makes it necessary to allow gilts to reach a higher age and weight before expecting them to breed successfully
因此，为了达到良好的繁殖性能，就应该延缓后备母猪的初配日龄。 |
| 6. | The pigs are also leaner and since fat is an essential tissue for reproduction , care must be taken to conserve body tissue in breeding animals
猪也较以前瘦，但是因为脂肪是良好繁殖性能的一个必须组织，种猪必须给予精细的管理以保持良好的体况。 |
| 7. | However , it is a relatively new concept and has been suggested to involve risks in terms of gilt reproduction performance , and therefore should be implemented with caution
然而，这种日粮是一个新概念，而且有影响繁殖性能风险，因此在实施的时候要谨慎。 |
| 8. | Good dams ? the gos is a milky breed and a good dam . in many cases , sows will continue breeding at a greater age than many breeds and hybrids
繁殖率高- - - - - - - - - -格洛斯特郡斑点猪的繁殖性能非常好。无论在什么情况下，母猪比其它的品种和杂交猪种使用年限长。 |
| 9. | What is needed is an integrated feeding strategy , starting with the developmental period of the gilt , and continuing throughout each successive gestation and lactation period , which is designed to maintain productivity and prolong the reproductive life of the sow
关联的饲喂策略，由后备母猪开始，然后包括持续的妊娠和泌乳，从延长母猪的种用期和维持好的繁殖性能入手。 |
| 10. | However , modern sows , with a leaner genotype and the superior reproductive performance we have come to expect , must be managed differently from their counterparts of 20 years ago , since they begin their reproductive life with fewer body reserves
然而，我们现在所期盼的瘦肉型高繁殖性能的母猪，必须要与20年前的养殖管理有所区别，因为它们要用更少的体储备来实现高繁殖性能。 |
