| 查看: 441 | 回复: 0 | |||
lbforlove木虫 (正式写手)
火虫
|
[求助]
求助英文摘要翻译+农业养殖+有效期至2019年8月29日
|
|
Abstract. The broiler industry has experienced remarkable improvements in productivity owing to high priority placed on genetic programming, nutrition and management practices. Nutrition of the meat chicken is driven by the need to satisfy the constantly increasing genetic potential, resulting in the shortening of the rearing time required to get the bird to market weight. The concept of feeding broilers a more specialised pre-starter diet for the first 10–14 days of age is gaining interest, as this now accounts for more than 20% of the time for grow-out. Specialised diets may be formulated to be highly digestible or aim to provide specific nutrients at a higher level to meet nutritional requirements of the bird. The effectiveness of specifically formulated pre-starter or starter diets depends on potential carryover effect to increase the bird performance up to the market age. There is evidence that some nutrient requirements of birds, digestible amino acids in particular, in the first 10 days of life may be higher than the current industry recommendation. Among cereals, rice with its lower non-starch polysaccharide content may be a better cereal for pre-starter diets than are corn or wheat. Inclusion of fibrous ingredients in low-fibre diets of young broilers may also stimulate gut development and enhance nutrient utilisation, leading to improved bird performance. There are inconsistencies in responses to various feed additives tested specifically for pre-starter diets of broilers. Finally, with an increasing demand for removal of antibiotic growth promoters from all broiler feeds, focus on formulations to ensure sustainable growth at start will gain importance.  微信图片_20190820214938.png |
回复此楼» 猜你喜欢
各位同学能否分享一下实验室的学生劳务发放标准呀？
已经有18人回复
-
每到中夜，情难自抑
已经有56人回复
-
论大家对6070后普通教授导师的看法
已经有10人回复
-
九部门发文：不得将专利授权数量作为人才评价、项目评审、职称评定、高校评价等的条件
已经有19人回复
-
没收到邮件
已经有7人回复
-
24or25材料专业申博
已经有11人回复
-
B口人才项目
已经有19人回复
-
实验室太吵闹，无法安静学习，怎么办？
已经有11人回复
-
求Sci期刊推荐
已经有7人回复
-
博后特别资助状态变化
已经有35人回复
10