TY  - JOUR
T1  - Effects of Different Protein Levels on Growth Performance,Carcass Characteristics and Blood Parameters of Cherry Valley Ducks
AU - Chen, Wan-Ru AU - Wang, Chang-Kang AU - Huang, Yi-Wei AU - Xu, Li-Hui AU - Xie, Li-Qu AU - Chen, Qing-Da AU - He, Gui-Juan 
JO  - Journal of Animal and Veterinary Advances
VL  - 12
IS  - 21
SP  - 1605
EP  - 1609
PY  - 2013
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2013.1605.1609
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2013.1605.1609
KW  - Different protein level
KW  -Cherry Valley duck
KW  -growth performance
KW  -feed conversion
KW  -reduced nitrogen
AB  - The 480, 1 day old male Cherry Valley ducks were randomly 
  allocated into three groups for a 42 days feeding trial including 1-21 and 22-42 
  days period. Dietary CP percentage in experimental diets (g/kg) were 21, 20 
  and 19% for groups I, II, III, respectively. Results showed that 1-21 days: 
  the feed intake and body weight gain in group II and III was higher (p<0.01) 
  than group I the feed conversion ratio of group II was lower (p<0.05) than 
  group I; the serum total protein in group I was higher (p<0.05) than group 
  III, 0.22-42 days: the feed conversion ratio of group III was lower (p<0.05) 
  than group II; the breast muscle ratio of the group II was increased (p<0.05) 
  by 7.53% than group I; the leg muscle ratio of the group I was increased (p<0.05) 
  by 7.57% than group III; the GSH-PX of group II and III was higher (p<0.05) 
  than group I by increased 16.50 and 17.21%, respectively. In conclusion, a dietary 
  CP level of 20% was optimal in terms of growth performance and reduced nitrogen 
  excretion.
ER  -