...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Animal Feed Science and Technology >Growth response and resistance to Streptococcus iniae of Nile tilapia, Oreochromis niloticus, fed diets containing different levels of wheat distiller's dried grains with solubles with or without lysine supplementation.
【24h】

Growth response and resistance to Streptococcus iniae of Nile tilapia, Oreochromis niloticus, fed diets containing different levels of wheat distiller's dried grains with solubles with or without lysine supplementation.

机译：尼罗罗非鱼，尼罗罗非鱼（Oreochromis niloticus）的生长反应和对耐链球菌的抵抗力，饲喂日粮中添加了不同含量的小麦蒸馏干粮，并添加或不添加赖氨酸。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A study was conducted to evaluate the effect of dietary levels of wheat distiller's dried grains with solubles (DDGS) with or without lysine supplementation on growth, body composition, hematology, immune response, and resistance of Nile tilapia, Oreochromis niloticus, to Streptococcus iniae challenge. Nine isonitrogenous, isocaloric diets were formulated to contain 0 (control), 100, 200, 300 and 400 g/kg wheat DDGS without (W0-W400) and with (WL100-WL400) lysine supplementation to a level equal to that of the control diet as partial replacement of a combination of soybean meal (SBM) and maize meal (MM) on an equal protein basis. Each diet was fed to juvenile Nile tilapia (3.92+or-0.07 g) in triplicate aquaria twice daily to apparent satiation for 10 weeks. Fish fed W400 had lower (P<0.05) weight gain (WG), feed efficiency ratio (FER), and protein efficiency ratio (PER) compared with those fed the control diet. Supplementation of lysine to the 400 g/kg wheat DDGS diet (WL400) increased (P<0.05) WG, FER, PER to levels similar to those fed control diet. The values of these variables did not differ among fish fed W0-W300 and WL100-WL400. No differences (P>0.05) were observed among whole body moisture, protein and fat of fish receiving various diets. Whole body ash tended to increase with increasing levels of dietary wheat DDGS, but the differences were not always significant. Hematological and immunological parameters, the average number of days to first mortality after S. iniae challenge and cumulative mortality 4 weeks post challenge were not affected (P>0.05) by dietary treatments. Results of this study suggest that wheat DDGS can be incorporated in Nile tilapia diets at a level of 300 g/kg as a substitute, on an equal protein basis, for a combination of SBM and MM without requiring lysine supplementation. The inclusion level of wheat DDGS can be increased to at least 400 g/kg (highest level evaluated) if lysine was supplemented to a level equal to that of the control diet.
机译：进行了一项研究，以评估含或不含赖氨酸的可溶物（DDGS）的小麦蒸馏干粮的日粮水平对尼罗罗非鱼，尼罗罗非鱼，尼罗罗非鱼的生长，身体组成，血液学，免疫反应和抗性的影响。 i>，以挑战链球菌。配制了九种等氮等温日粮，其中含有0（对照），100、200、300和400 g / kg小麦DDGS，不添加（W0-W400）和添加（WL100-WL400）赖氨酸，其水平与对照相同饮食，以相同蛋白质为基础部分替代豆粕（SBM）和玉米粉（MM）的组合。每天两次将三联水族箱中的幼鱼尼罗罗非鱼（3.92+或-0.07 g）喂食至10周，使其明显饱食。与饲喂对照日粮的鱼相比，饲喂W400的鱼的增重（WG），饲料效率比（FER）和蛋白质效率比（PER）低（P <0.05）。向400 g / kg小麦DDGS饮食（WL400）中补充赖氨酸可使WG，FER，PER升高（P <0.05），其水平与对照饮食相似。这些变量的值在喂食W0-W300和WL100-WL400的鱼之间没有差异。接受不同饮食的鱼的体内水分，蛋白质和脂肪之间没有差异（P> 0.05）。随着膳食小麦DDGS含量的增加，全身灰分趋于增加，但差异并不总是很明显。血液学和免疫学参数，后首次致死的平均天数。饮食治疗不会影响iniae攻击和攻击后4周的累积死亡率（P> 0.05）。这项研究的结果表明，可以将小麦DDGS以300 g / kg的水平掺入尼罗罗非鱼日粮中，以相等的蛋白质替代SBM和MM，而无需补充赖氨酸。如果将赖氨酸补充到与对照饮食相同的水平，则小麦DDGS的包含水平可以增加到至少400 g / kg（评估的最高水平）。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号