Exploration And Demonstration Of Ecological Breeding Model Of "Corn Planting-Zi Goose Breeding Combination"

The cost of feed in goose production accounts for about 70% to 80% of the cost of breeding,which restricts the economic benefits of the goose industry to a certain extent.As a herbivorous waterfowl,the digestive system of goose has the characteristics of fully decomposing high-fiber roughage,and has good utilization and adaptability to roughage.Therefore the goose can replace part of the feed ingredients by ingesting roughage including,corn leaves and agricultural by-products.The purpose of this study was to explore the effect of the combination of planting and breeding on the growth,slaughter performance,intestinal morphology and,cecal microflora of Zi goose,and the effects of Zi goose corn field stocking on corn yield and soil physicochemical properties were analyzed and compared,to provide data reference for the application of Zi goose corn field stocking mode.Corn in the silking stage was used as the carrier in Research 1,and Zi geese as an object for further research.Here,the growth,slaughter performance,serum biochemical parameters,ileum intestinal morphology,and cecal microflora of Zi geese were analyzed,and compared with the control group breeding in captivity and the trial group stocking in the corn field with 10% dietary reduction.The experiment lasted for 56 days.The test results are as follows: The terminal body weight and average daily gain of the Zi goose in the experimental group were not significantly different from those in the control group.Dressed weight,semi-eviscerated carcass weight,eviscerated carcass weight,breast weight,slaughter yield,semi-eviscerated carcass yield,and eviscerated carcass yield of Zi geese in the trial group were extremely significantly higher than the control group(P<0.01),thigh weight and abdominal fat weight were significantly higher than the control group(P<0.05).In addition,villus height and villus height : crypt depth ratio in the ileum of the trial group were extremely significantly higher than the control group(P<0.001),but the crypt depth was extremely significantly lower than the control group(P<0.001).The relative abundance of Actinobacteriota,Coriobacteriia,Coriobacteriales,Atopobiaceae and Olsenella in the cecum of the trial group was extremely significantly higher than the control group(P<0.01).Corn field as the object in Research 2,the corn field without Zi goose stocking was used as the control group,the corn field that were stocked with Zi goose in 2021 as Test group I(stocking for 1 year),the corn field that were stocked with Zi goose in2020 as Test group II(continuous stocking for 2 year),the corn yield and soil samples of each group were collected and measured uniformly after the end of the Zi goose feeding experiment in 2021,the test results are as following: The corn yield per hectare of test group II was extremely significantly higher than that of the control group(P<0.01),and significantly higher than that of test group I(P<0.05);The soil p H value of test group II(p H=7.21)was significantly higher than that of test group I(p H=6.79)and control group(p H=5.94)(P<0.01);The total potassium content of soil in the test group I was significantly higher than that in the control group(P<0.05);The content of soil organic matter,total phosphorus and available phosphorus in test group I and test group II were higher than those in the control group,but there was no significant difference between the groups(P>0.05).Compared with the control group,test group Ⅰ and test group Ⅱ can increase economic benefits by 1045.12 RMB and495.36 RMB per hectare of corn field.These above results show that,under the condition of saving 10% feed,ingesting corn leaves can regulate cecal microflora structure and ileum intestinal morphology in Zi goose,thereby improving the digestion and absorption capacity of the body,and ultimately affecting the growth and slaughter performance.At the same time,the stocking of Zi geese in the corn field improved the physical and chemical properties of the soil,increased the soil nutrient content,corn yield,and economic benefits have also been it improved.To sum up,improved the ecological environment quality and promoted the green and sustainable development of the breeding industry.