| 查看: 640 | 回复: 0 | ||
[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
只有每年这种时候来逛逛小木虫
已经有26人回复
-
2026国自然函评费到账
已经有10人回复
-
filecode，4个jtjc了
已经有16人回复
-
售一区SCI文章T0P，我:8O.551.O54,科目全,可十急
已经有4人回复
-
人气不行了
已经有8人回复
-
今天基金会出结果吗？20260819
已经有17人回复
-
售SCI一区T0P文章，我:8O.55.1.O.54,科目全,可伽急
已经有9人回复
-
时间戳今天，20号变了
已经有5人回复
-
放榜前的不淡定
已经有14人回复
-
建议基金发布提前给出明确的时间点
已经有13人回复
40