Effects of ellagic acid on growth and slaughter performance of young pigeons
The purpose of this experiment was to study the effects of ellagic acid on growth performance and slaughter performance of young pigeons.In this experiment,120 parent pigeons of 24-month-old European meat pigeons with the same genetic background and 180 young pigeons of 0-day-old who hatched on the same day and in good physical condition were randomly divided into control group,experiment Ⅰ group,experiment Ⅱ group and experiment Ⅲ group.The incubation mode of"2+3"was adopted in each group,with 15 young pigeons in each repetition.The control group was fed with the basal diet without ellagic acid,and the three experimental groups were fed with 1％,3％and 6％ellagic acid respectively for 28 days.Pigeons were weighed at the age of 0,7,14,21 and 28 days during the experiment.On the end of the experiment,five cages of pigeons were selected for slaughter test in each group,and the internal organs were taken and the organ index was calculated.The results showed that:(1)The 7-day-old weight of young pigeons in group Ⅰ,group Ⅱ and group Ⅲ was higher than that in the control group,which increased by 8.17％,10.45％and 7.68％respectively(P＞0.05).The weight of squab at the age of 21 days in group 11 and group Ⅲ was higher than that in the control group,increasing by 1.52％and 2.24％respectively(P＞0.05).The 28-day-old weight,total weight gain and average daily weight gain of squab in experimental groups were all higher than those in control group,which increased by 2.48％,2.6％and 2.5％respectively(P＞0.05).(2)There was no significant difference in slaughter rate between the control group and each experimental group(P＞0.05).The semi-clean bore rate of test group Ⅱ was significantly higher than that of test group Ⅰ,with an increase of 11.90％(P＜0.05).The total clean bore rate of test group Ⅱ was significantly higher than that of test group Ⅰ,with an increase of 12.57％(P＜0.05).The percentage of pectoral muscle in experimental group 11 and experimental group Ⅲ was significantly higher than that in control group,which increased by 40.88％and 31.32％respectively(P＜0.05).Leg muscle rate in group Ⅱ was significantly higher than that in group Ⅰ,with an increase of 15.96％(P＜0.05).(3)Heart index in group Ⅰ,group Ⅱ and group Ⅲ was 18％,8％and 13％higher than that in control group respectively(P＞0.05).The liver index of the experimental group Ⅰ and the experimental group Ⅲ was higher than that of the control group,which increased by 36.13％(P＜0.05)and 7.98％(P＞0.05)respectively.Spleen index in experimental group Ⅰ was significantly higher than that in control group,with an increase of 85.71％(P＜0.05).To sum up,under the experimental conditions,adding ellagic acid to the diet could promote the growth and development of young pigeons,improve the organ development of young pigeons and improve the slaughter performance of young pigeons.
ellagic acidsquabgrowth and developmentslaughter performance
万方数据
维普
