Phon kan chai ahan thimi protein radap tang kan khun pet luk phasom pan khai phetphu pen petnun.
1992
Witthaya Sumamal | Chaisang Phaikaew | Watcharin Boonpukdee
Two hundred of Khakicambell x Native maled duckling, aged of three weeks were divided into five groups in Randomized Complete Block Design. Each group was assigned randomly to receive five dietary treatments with various protein levels in each period of age: In 3-8 week old, the duck in group 1,2 and 3 received 16 percent protein diets and group 4 and 5 received 14 percent protein diets. In 8-12 week old, the duck in group 1 received 16 percent protein diets, group 2 and 4 received 14 percent protein diets and group 3 and 5 received 12 percent protein diets. The energy level of all treatment were 2,900 kcal/kg. The ducks were reared from 3-12 week of age. The duck fed each protein level in each group had no significant difference in average daily gain, feed intake and feed efficiency. Feed cost per 1 kilogram weight gained for group 1, 2, 3, 4 and 5 were 31.07, 29.20, 29.40, 30.24 and 28.91 bahts respectively.
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Эту запись предоставил Wolters Kluwer