动物营养学报2019，Vol.31Issue(6)：2634-2641,8.DOI:10.3969/j.issn.1006⁃267x.2019.06.023
饲粮铁添加水平对产蛋期种鹅生产性能、繁殖性能、蛋品质及血液生理生化指标的影响
Effects of Dietary Iron Supplemental Level on Performance, Reproductive Performance, Egg Quality and Blood Physiological and Biochemical Parameters of Breeding Geese during Laying Period
摘要
Abstract
This experiment was conducted to study the effects of dietary iron supplemental level on perform?ance, reproductive performance, egg quality and blood physiological and biochemical parameters of breeding geese during laying period, to study the iron requirement of breeding geese during laying period. A total of 120 thirty?four?week?old breeding geese with the similar body condition were randomly divided into 6 groups with 4 replicates per group and 5 geese per replicate ( 1 male and 4 female). Geese in the 6 groups ( groupsⅠtoⅥ) were fed basal diets supplemented with 0, 20, 40, 60, 80 and 100 mg/kg iron, respectively. The pre?experi?mental period lasted for 1 week, and the experimental period lasted for 10 weeks. The results showed as fol?lows: 1) the average egg weight of group Ⅴ was significantly higher than that of groups Ⅰ,Ⅱ and Ⅲ( P＜0.05 or P＜0.01). According to the quadratic curve fitting equation, the average egg weight was the highest when dietary iron supplemental level was 80.61 mg/kg. 2 ) The hatching egg qualified rate, hatching egg hatching rate and healthy rate of group Ⅴ were significantly higher than those of other groups ( P＜0.05 or P＜0.01) , and the hatching egg fertilization rate of group Ⅴ was significantly higher than that of groupsⅠ,Ⅱ,Ⅲ and Ⅵ( P＜0.05 or P＜0.01). According to the quadratic curve fitting equation, the hatching egg qualified rate was the highest when dietary iron supplemental level was 79.87 mg/kg; the hatching egg fertilization rate was the highest when dietary iron supplemental level was 84.82 mg/kg.3) The yolk color of groupⅤwas sig?nificantly higher than that of groupsⅠ,Ⅱ,ⅢandⅥ( P＜0.05). 4) The contents of urea nitrogen and creat?inine in serum of groupsⅣandⅤwere significantly lower than those of groupsⅠ,ⅡandⅢ( P＜0.05 or P＜0.01) , and the serum iron content of groupsⅣandⅤwas significantly higher than that of groupsⅠ,ⅡandⅢ( P＜0.05 or P＜0.01). 5) The blood red cell count of groupⅤ was significantly higher than that of groupsⅠ andⅡ( P＜0.05 or P＜0.01) , the hematocrit, hemoglobin concentration and average hemoglobin content in blood of groupsⅣ,Ⅴ and Ⅵ were significantly lower than those of other groups ( P＜0.05 or P＜0.01) , and the blood mean corpuscular volume of groupsⅣ,ⅤandⅥwas significantly higher than that of groupsⅠ,Ⅱand Ⅲ( P＜0.05 or P＜0.01). In conclusion, dietary iron supplemental level has significant effects on average egg weight, reproductive performance, yolk color and blood physiological and biochemical parameters of breeding geese during laying period, on the basis of above results, it is suggested that the dietary iron supple?mental level of breeding geese during laying period is 80.61 to 84.82 mg/kg.[ Chinese Journal of Animal Nu?trition, 2019, 31(6) :2634?2641]关键词
铁/种鹅/生产性能/繁殖性能/蛋品质/生化指标Key words
iron/breeding geese/performance/reproductive performance/egg quality/biochemical parame⁃ters分类
农业科技引用本文复制引用
隋福良,李文立,王贺飞,代国滔,石静,王宝维..饲粮铁添加水平对产蛋期种鹅生产性能、繁殖性能、蛋品质及血液生理生化指标的影响[J].动物营养学报,2019,31(6):2634-2641,8.基金项目
国家水禽产业技术体系专项基金( CARS⁃43⁃11 ) （ CARS⁃43⁃11 ）
国家重点研发计划"绿色水禽高效安全养殖技术应用与示范"(2018YFD0501501) （2018YFD0501501）
