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[肉鸡雏鸡蛋氨酸需求测定的代谢导向方法学研究。2. 饲喂频率对蛋氨酸利用的影响]

[Methodical studies of metabolism oriented methionine requirement determination in broiler chicks. 2. Effect of feeding frequency on methionine utilization].

作者信息

Mnilk B, Bergner H, Simon A

机构信息

Institut für Ernährungsphysiologie, Humboldt-Universität, Berlin, Germany.

出版信息

Arch Tierernahr. 1993;43(4):313-8. doi: 10.1080/17450399309386046.

Abstract

The effect of feeding frequency (daily 2 times feeding for 1 hour or 6 times feeding for 30 minutes) and a different methionine content of the diet on weight gain, N-balance and metabolic 35S-methionine degradation was investigated in broiler chickens. Weight gain and N-balance were not improved by increased feeding frequency. At the high feeding frequency, weight gain and N-balance were even depressed when diets with methionine deficiency (without methionine supplementation) were fed. No effects of feeding frequency and the amount of DL-methionine supplementation on the level of excreted 35S after i.v. injection of 35S-methionine were observed.

摘要

研究了饲喂频率(每日2次,每次1小时;或6次,每次30分钟)以及日粮中不同蛋氨酸含量对肉鸡体重增加、氮平衡和代谢性35S-蛋氨酸降解的影响。增加饲喂频率并未改善体重增加和氮平衡。在高饲喂频率下,当饲喂蛋氨酸缺乏(未补充蛋氨酸)的日粮时,体重增加和氮平衡甚至受到抑制。静脉注射35S-蛋氨酸后,未观察到饲喂频率和DL-蛋氨酸补充量对35S排泄水平的影响。

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