The effect of pain relief at castration on piglet performance
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چکیده
Methodology Male piglets between 5 and 7 d of age were ear notched, weighed, then randomly selected into control (n = 700) and treatment (n = 700) groups and given an injection (IM) of either saline solution or Anafen (Ketoprofen injection 100 mg/mL 1 mL/50 kg body weight), respectively. A sample size calculation was performed to determine the number of piglets required to demonstrate a 225g/day increase in average daily gain (ADG) with 95% confidence. Piglets were then castrated 30 min after receiving the injection, and 10 min after castration piglets were observed for signs of discomfort. A final weight was taken at 21 d of age, and mortality was recorded.
منابع مشابه
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تاریخ انتشار 2010