China Animal Husbandry and Veterinary Medicine ›› 2021, Vol. 48 ›› Issue (1): 135-143.doi: 10.16431/j.cnki.1671-7236.2021.01.015

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

Amino Acids Requirement of Wanxi White Goose from 9 to 12 Weeks of Age Based on Factorial Method

ZHU Honglong1, DENG Xiaojie2, HU Zhongze2, CHEN Liyuan1, JIANG Weijun3, XIA Lunzhi1   

  1. 1. Anhui Key Laboratory of Livestock and Poultry Product Safety Engineering, Institute of Animal Science and Veterinary Medicine, Anhui Academy of Agricultural Science, Hefei 230001, China;
    2. College of Animal Science, Anhui Science and Technology University, Fengyang 233100, China;
    3. Liu'an Junming Specialized White Geese Farming Cooperative, Liu'an 237147, China
  • Received:2020-07-02 Online:2021-01-20 Published:2021-01-15

Abstract: In order to evaluate amino acids (AA) requirement of Wanxi White goose from 9 to 12 weeks of age,eighty-four Wanxi White geese at 9 and sixteen adult Wanxi White male geese were used in a comparative slaughter trail and a nitrogen balance trail,respectively,based on the principle of factorial method.Carcass and feather from geese at 9 weeks of age and 12 weeks of age and excretion from adult male geese were collected for AA analysis.In addition,excretion from adult geese was used for amino acid and creatinine analysis.The results were as follows:There were no significant differences in the AA composition of carcass and feathers between geese at 9 weeks of age and 12 weeks of age (P>0.05).The requirements (the number in brackets was AA pattern) of lysine,methionine,cysteine,threonine,histidine,valine,leucine,isoleucine,arginine,phenylalanine,serine,and proline for growth in geese from 9 to 12 weeks of age were 1 803.16 (100),464.85 (26),775.56 (69),1 032.40 (57),482.37 (27),1 200.68 (67),1 862.72 (103),1 043.63 (58),1 203.58 (67),660.97 (37),1 322.75 (73),and 824.05 (46) mg/d,respectively,and those for maintenance were 172.29 (100),161.14 (94),633.05 (367),398.08 (231),70.52 (41),548.26 (318),626.06 (363),362.46 (210),506.62 (294),299.31 (174),882.53 (477),and 693.37 (402) mg/d,respectively.Dietary levels of lysine,methionine,cysteine,threonine,histidine,valine,leucine,isoleucine,arginine,phenylalanine serine,and proline in Wanxi White geese from 9 to 12 weeks of age were 0.77%,0.24%,0.55%,0.56%,0.21%,0.68%,0.97%,0.55%,0.66%,0.37%,0.83%,and 0.59%,respectively.

Key words: factorial method; Wanxi White goose; amino acids requirements

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