ACTA VETERINARIA ET ZOOTECHNICA SINICA

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Effect of Force-feeding Stress on Growth Performance,Meat Characteristics of Leg,Serum Hormone and Blood Gas Parameters of Peking Ducks

YANG Zi-yan 1,ZHANG Ya-ru 1,WANG Zhong 2,YUAN Jian-min 2,ZHANG Lu-shuang 1,XIA Zhao-fei 1*   

  1. (1.College of Veterinary Medicine,China Agricultural University,Beijing 100193,China;2.College of Animal Science and Technology,China Agricultural University,Beijing 100193,China)
  • Received:2015-04-21 Online:2016-07-23 Published:2016-07-23

Abstract:

The objective of this study was to evaluate effects of force-feeding stress on growth performance,meat characteristics of legs,serum hormone and blood gas parameters of Peking ducks.A total of 160 thirty-nine-day-old Peking ducks with average body weight (2.573±0.096) kg were randomly divided into 2 groups (force-feeding group and control group) with 80 ducks per treatment.After 6 days,8 ducks from each treatment were selected randomly to be weighted for calculating average body weight and average daily gain,and meat characteristics of leg(pH and drip loss rate),serum hormone (ACTH,CORT,T3 and T4) and blood gas parameters were tested.The results showed that the average body weight and average daily gain in force-feeding group was significantly higher than those in control group (P<0.05).And the CORT,AnGap,Hct and Hb in force-feeding group was significantly higher than that in control group (P<0.01).The pH at 45 min and 24 h of tibialis anterior in force-feeding group were significantly lower than those in control group (P<0.01).It was concluded that force-feeding could enhance gaining weight significantly.However,force-feeding could affect the meat characteristics of leg significantly and induce physiological stress of Peking ducks by increasing serum CORT.At last,force-feeding could also influence the blood circulation system of Peking ducks.

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