Schutte J B, van Weerden E J
Br Poult Sci. 1978 Sep;19(5):573-81. doi: 10.1080/00071667808416516.
The sulphur amino acid requirements of White Leghorn-type laying hens were determined in two 52-week experiments using diets based on maize and soyabean meal providing from 5.0 to 6.5 g sulphur amino acids/kg, 12.35 MJ ME/kg and 8.6 to 8.8 g lysine/kg. There were six replicates of 15 individually-caged hens each per treatment. 2. A requirement of approximately 775 to 800 mg sulphur amino acids/hen d, of which about 390 to 440 mg was methionine, was found for a maximum of 80 to 83 eggs/100 hen d. There were indications that the requirement for maximum egg production was less than that for maximum efficiency of food utilisation. 3. Diets containing 138 g protein/kg supplemented with methionine and lysine supported production and food utilisation as effectively as a diet containing 167 g protein/kg.
在两项为期52周的试验中，以玉米和豆粕为基础配制日粮，日粮含硫氨基酸水平为5.0至6.5克/千克、代谢能12.35兆焦/千克、赖氨酸8.6至8.8克/千克，测定了白来航型蛋鸡的含硫氨基酸需求量。每个处理有6个重复，每个重复15只单笼饲养的母鸡。2. 发现每只母鸡每天约需775至800毫克含硫氨基酸，其中约390至440毫克为蛋氨酸，才能达到每100只母鸡每天最多产蛋80至83枚。有迹象表明，最大产蛋量的需求量低于食物利用效率最高时的需求量。3. 每千克含138克蛋白质并添加蛋氨酸和赖氨酸的日粮，在支持产蛋和食物利用方面与每千克含167克蛋白质的日粮效果相同。
