| In order to achieve the integration and demonstration of the key technologies of high-quality meat duck healthy breeding,this project has carried out the establishment and demonstration of the base for the expansion and propagation of high-quality meat duck,the application and promotion of heat stress resistant feed for high-quality meat duck healthy breeding,the establishment and promotion of epidemic prevention system for high-quality meat duck healthy breeding,and the industrialization model of high-quality meat duck healthy breeding.Research on development and demonstration.The effect of vitamin C on the growth performance of summer high temperature Cherry Valley SM3 ducklings was studied.1200 5-day-old ducks were randomly divided into 4 groups,each group had 3 replicates,100 ducks each.A total of one kind of diet was designed,and the control group was fed without any treatment.In the experiment 1-3 groups,200,300 and 400 mg / kg vitamin C were added to the basic diet respectively.The experiment began at 5 days old and ended at 23 days old.The results showed that in the weight of 23 day old ducks,the weight of meat ducks in test group 2(300 mg / kg VC added in the feed)was the largest,101.26 g heavier than that in control group;there was no significant difference between the weight of meat ducks in test group 1 and 2,and there was significant difference between test group 1,test group 2,test group 3 and control group 4.In terms of mortality,2.67% in test group 1 and 2,1.33% in test group 3 and 4,and the mortality of each group was not high.In terms of daily gain,the best effect of test group 2 was 44.68 g,followed by test group 1,test group 3 and control group.There was significant difference in daily gain between test group 1,test group 2,test group 3 and control group,but there was no significant difference between test group 1,test group 2 and test group 3.In terms of food intake,the food intake of test group 2 was the highest,291.08 g higher than that of control group 4.There was a very significant difference between test group 1,test group 3 and control group 4.In the aspect of feed to meat ratio,there was no significant difference between test group 2 and test group 3,test group 1 and test group 4,but there was significant difference between test group 1 and test group 2,test group 3,test group 2and test group 4,and between test group 3 and test group 4.Conclusion: adding vitamin C to the diet can significantly alleviate the negative effects of heat stress on the growth performance of summer high-temperature Cherry Valley Meat ducklings.Adding300 mg vitamin C to the diet can improve the growth performance of meat ducklings.The effect of different levels of vitamin C in the diet on the egg laying performance of Sm3 meat duck was studied.600 meat ducks of 450 days old were randomly divided into 4 groups,each group had 3 repetitions,50 ducks each repetitions.A total of one kind of diet was designed,and the control group was fed without any treatment.In the experiment 1-3 groups,200,300 and 400 mg / kg vitamin C were added to the basic diet respectively.The experiment lasted 11 days.Results: there were significant differences in egg production and egg production rate between the experimental group 2(basic diet+ 300 mg / kg vitamin C)and the control group.The egg production rate,egg weight and feed egg ratio of the experimental group 2 were the best for each experimental group.The egg production and rate of experiment group 2 were higher than experiment group 1 and experiment group 3,but the difference was not significant.The egg production and rate of test group 1 and 3 were better than those of control group,but the difference was not significant.The feed to egg ratio of test group 2 was higher than that of other groups,but the difference was not significant.Test group 1 and 3 were also higher than the control group,but the difference was not significant.In terms of food intake,experimental group 1 was basically the same as experimental group 2,and increased compared with experimental group 3 and control group,but the difference was not significant.In terms of mortality,trial group 3 was the highest,trial group 2 was the second,trial group 1 was the same as control group 4,but the difference was not significant.Conclusion: adding vitamin C to the diet can significantly alleviate the negative effect of heat stress on the laying performance of Cherry Valley Meat Ducks in summer.Adding 300 mg vitamin C to the diet can improve the laying performance of meat ducks.According to the research results of the experiment and demonstration,we will carry out the promotion and demonstration of the improved duck industry,and promote the healthy breeding of high-quality duck with anti heat stress feed,so as to obtain significant economic benefits.On the basis of Chongqing Rongxing duck professional cooperative,and in combination with the Research Institute of waterfowl of Chongqing Academy of animal husbandry,three key duck breeding bases were established in Heyang City,Nanjin Street and Caojie Street,a total of 130 meat duck breeding demonstration households have been developed,in accordance with the principle of "mutual benefit,cooperation and development",the cooperative carries out five unified high-quality services for its members: "unified duckling supply,unified material supply,unified epidemic prevention,unified processing and sales",form an integrated management system before,during and after production,and "Scientific research +cooperatives + bases + farmers" operation mode.From July to August 2017,in the breeding farm of Rongxing duck breeding cooperative and 130 meat duck breeding demonstration households in Hechuan District,Chongqing,the promotion of high-quality meat duck and healthy breeding of heat stress resistant feed was carried out in an all-round way.10500 parents of high-quality Cherry Valley duck were introduced,240000 meat ducks were introduced,and 300 mg / kg vitamin C was added to the diet,increasing the breeding efficiency by 1.07 million yuan per year. |
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