饲粮代谢能水平对汶上芦花产蛋鸡生产性能、血清生化指标和蛋品质的影响

发布时间：2018-05-28 16:04

本文选题：汶上芦花鸡 + 生产性能　；参考：《动物营养学报》2017年09期

【摘要】：本试验旨在研究饲粮代谢能(ME)水平对产蛋期汶上芦花鸡生产性能、血清生化指标和蛋品质的影响,并建立代谢能需要量析因模型,确定产蛋期汶上芦花鸡的饲粮代谢能需要量。试验采用单因素完全随机设计,选取40周龄、体重相近的健康汶上芦花鸡360只,随机分为5个组,每组6个重复,每个重复12只鸡。各组分别饲喂代谢能水平为10.68、10.89、11.10、11.30和11.51MJ/kg的试验饲粮,其他主要营养水平保持一致。预试期7d,试验期35d。结果表明:1)饲粮代谢能水平对产蛋期汶上芦花鸡的平均日采食量(ADFI)、平均日代谢能摄入量(ADMEI)、平均体重、代谢体重(BW0.75)、产蛋数、产蛋率和平均日产蛋量(ADEM)均有显著影响(P0.05)。随饲粮代谢能水平的升高,ADFI、ADMEI、产蛋数、产蛋率和ADEM呈增加趋势,但当代谢能水平为11.51 MJ/kg时降低。随饲粮代谢能水平的升高,料蛋比呈降低趋势,但当代谢能水平为11.51 MJ/kg时增加。饲粮代谢能水平为11.51和11.30 MJ/kg时的平均体重和BW0.75显著高于代谢能水平为11.10 MJ/kg时(P0.05)。2)随饲粮代谢能水平的升高,产蛋期汶上芦花鸡的血清葡萄糖(GLU)、甘油三酯(TG)和总胆固醇(TCHO)含量均呈增加趋势。3)饲粮代谢能水平对产蛋期汶上芦花鸡的蛋白高度、蛋黄颜色、哈氏单位和蛋黄比率有显著影响(P0.05)。低能组(代谢能水平为10.68、10.89和11.10 MJ/kg)的蛋白高度和哈氏单位显著高于高能组(代谢能水平为11.30和11.51 MJ/kg)(P0.05)。随饲粮代谢能水平的升高,蛋黄颜色和蛋黄比率呈增加趋势,其中代谢能水平为11.51 MJ/kg时的蛋黄颜色和蛋黄比率显著高于其他各代谢能水平时(P0.05)。4)以ADMEI为因变量,以平均日增重(ADG)、ADEM和BW0.75为自变量,拟合41~45周龄汶上芦花鸡饲粮代谢能需要量的析因模型为:ADMEI=0.88 ADG+10.63 ADEM+476.40 BW0.75(R2=0.982 5,P0.05)。满足41~45周龄汶上芦花鸡最佳生产性能的适宜饲粮代谢能需要量为11.29 MJ/kg。
[Abstract]:The purpose of this experiment was to study the effects of dietary ME) level on the performance, serum biochemical index and egg quality of Wenshang Luhua chicken in laying period, and to establish a factorial model of metabolic energy requirement to determine the dietary metabolic energy requirement of Wenshang Luhua chicken in laying period. In this experiment, 360 healthy Wenshang Luhua chickens, 40 weeks old and of similar body weight, were randomly divided into 5 groups with 6 replicates in each group and 12 chickens in each group. The experimental diets fed with metabolic energy level of 10.68 ~ 10.89 and 11.51MJ/kg were 10.68 ~ 10.89 and 11.10 ~ (10) ~ 11.30, respectively, while the other main nutritional levels remained the same. The pretest period was 7 days and the test period was 35 days. The results showed that the dietary metabolic energy level had a significant effect on ADFI, ADMEI, average body weight, metabolic weight, egg number, egg production rate and average daily egg production (ADEMM) of Wenshang Luhua hens at laying stage. ADFI I ADMEI, egg number, egg laying rate and ADEM increased with the increase of dietary metabolic energy level, but decreased when metabolic energy level was 11.51 MJ/kg. The ratio of feed to egg decreased with the increase of dietary metabolic energy level, but increased when metabolic energy level was 11.51 MJ/kg. The average body weight and BW0.75 at 11.51 and 11.30 MJ/kg dietary metabolic energy levels were significantly higher than those at 11.10 MJ/kg. The contents of serum glucose (GLU), triglyceride (TG) and total cholesterol (TCHO) in Wenshang Luhua chickens at laying stage were all increased. 3) the dietary metabolic energy level had a significant effect on the protein height, egg yolk color, hardy unit and egg yolk ratio of Wenshang Luhua chickens at laying stage (P0.05). The protein height and Hardy unit in low energy group (10.68 mg / kg and 11.10 MJ / kg) were significantly higher than those in high energy group (11.30 and 11.51 MJ / kg P 0.05). The yolk color and yolk ratio increased with the increase of dietary metabolic energy level, and the yolk color and yolk ratio at the metabolic energy level of 11.51 MJ/kg were significantly higher than those at other metabolic energy levels (P0.05 路4). Taking ADGG Adem and BW0.75 as independent variables, the factorial model of dietary metabolic energy requirement of 41w / 45 week-old Wenshanhua chicken was fitted as follows: ADMEI 0.88 ADG 10.63 ADEM 476.40 BW0.75(R2=0.982 5G P0.05N. The optimum dietary metabolic energy requirement to meet the optimum production performance of 41U / 45 week Wenshang Luhua chicken was 11.29 MJ / KG.
【作者单位】：山东农业大学动物科技学院;黄岛出入境检验检疫局;河北省辛集市畜牧局;山东省农业科学院家禽研究所;
【基金】：基金项目:山东省现代农业产业技术体系家禽创新团队营养与饲料岗位(SDAIT-011-08)
【分类号】：S831.5

【相似文献】