日粮不同粗蛋白质水平对济宁百日鸡生产性能和繁殖性能影响的研究
发布时间：2018-08-17 12:56
【摘要】：本文旨在研究日粮不同粗蛋白质水平对济宁百日鸡生产性能、蛋品质、血清生化指标、繁殖性能以及初生雏鸡的影响,建立济宁百日鸡蛋白质需要的析因模型,确定实际生产条件下济宁百日鸡适宜的蛋白质需要量,为济宁百日鸡饲养标准的制定提供理论基础和实践依据。试验选用40周龄体型基本一致的健康济宁百日鸡产蛋种鸡525只,随机分为5个处理,每个处理105只鸡,每个处理5个重复,每个重复21只鸡。试验采用单因素完全随机试验设计,5个粗蛋白质梯度分别为13%、14%、15%、16%、17%,试验日粮其它主要营养指标保持一致。预试期7d,试验期56d。试验内容分为3部分,①日粮不同粗蛋白质水平对济宁百日鸡生产性能、蛋品质、血清生化指标的影响;②日粮不同粗蛋白质水平对济宁百日鸡繁殖性能的影响;③日粮不同粗蛋白质水平对济宁百日鸡初生雏鸡的影响。试验结果表明:日粮不同粗蛋白质水平显著影响了41-48周龄济宁百日鸡的产蛋数、产蛋率、蛋重、日产蛋量、日产合格种蛋量(P0.05),极显著影响了日粗蛋白质摄入量、料蛋比(P0.01),未显著影响耗料量、体重、代谢体重、日增重、不合格蛋率、存活率(P0.05)。随着日粮粗蛋白质水平的增加济宁百日鸡的日粗蛋白质摄入量具有明显增加的趋势,并且产生了和日粮粗蛋白质水平相一致的变化趋势,高蛋白质组(16%、17%)与低蛋白质组(13%、14%、15%)间差异极显著(P0.01),并且低蛋白质(13%、14%、15%)组间差异极显著(P0.01)。在一定的日粮粗蛋白质水平(13%-16%)限度范围内,蛋重有随着日粮粗蛋白质水平的增加而增加的趋势。高蛋白质组(16%、17%)的产蛋数、产蛋率、日产蛋量、日产合格种蛋量均高于低蛋白质组(13%、14%、15%)。16%蛋白质组的产蛋性能最好。最高的日粮粗蛋白质水平(17%)并未获得最高的生产性能,获得了最低的料蛋比。日粮不同粗蛋白质水平显著影响了41-48周龄济宁百日鸡的蛋重(P0.05),在一定的日粮粗蛋白质水平(13%-16%)限度范围内,随着日粮粗蛋白质水平的增加蛋重表现出了增加的趋势。显著影响了48周龄的蛋壳硬度(P0.05),蛋壳硬度随着日粮粗蛋白质水平的增加而增加,日粮蛋白质水平最高(17%)蛋壳硬度最大。未显著影响蛋白高度、蛋黄比率、哈氏单位、蛋黄重、蛋形指数、蛋壳重、蛋壳厚度、蛋黄蛋白比(P0.05)。日粮不同粗蛋白质水平显著影响了济宁百日鸡44周龄的血清总蛋白、血清白蛋白、血清尿酸(P0.05),但未显著影响44周龄的血清尿素(P0.05)。48周龄的血清生化指标几乎未受影响(P0.05),仅显著影响了48周龄的血清尿素(P0.05)。日粮不同粗蛋白质水平显著影响了41-48周龄济宁百日鸡的产蛋总数、种蛋合格数、出雏数(P0.05)。种蛋合格率、受精率均未受到显著影响(P0.05)。种鸡日粮不同粗蛋白质水平几乎未影响44周龄种蛋孵化的初生雏鸡,仅对初生雏鸡的心脏重产生了显著影响(P0.05)。种鸡日粮不同粗蛋白质水平显著影响了48周龄种蛋孵化的初生雏鸡的初生重(P0.05),肝脏重受到了极显著的影响(P0.01)。几乎未影响初生雏鸡的血清生化指标,仅显著影响了48周龄种蛋孵化的初生雏鸡的血清尿酸(P0.05)。综合日粮不同粗蛋白质水平对济宁百日鸡生产性能、蛋品质、血清生化指标、繁殖性能以及初生雏鸡的影响,建立济宁百日鸡蛋白质需要的析因模型,确定实际生产条件下济宁百日鸡适宜的蛋白质需要量。ADCPI=0.2680ADG+0.2711ADEM+3.2993BW0.75ADCPI=0.3347ADG+0.2784ADQEM+3.3684BW0.75满足济宁百日鸡41-48周龄最佳生产性能的适宜日粮粗蛋白质水平为15.49%。满足济宁百日鸡41-48周龄最佳繁殖性能的适宜日粮粗蛋白质水平为14.81%。
[Abstract]:The purpose of this paper is to study the effects of dietary crude protein levels on production performance, egg quality, serum biochemical indexes, reproductive performance and newborn chickens of Jining 100-day chickens, establish a factorial model of protein requirement of Jining 100-day chickens, and determine the optimum protein requirement of Jining 100-day chickens under actual production conditions. 525 healthy Jining 100-day laying hens of 40 weeks old were randomly divided into 5 treatments, 105 chickens in each treatment, 5 replicates in each treatment and 21 chickens in each replicate. The experiment was divided into three parts: (1) the effects of dietary crude protein levels on the performance, egg quality and serum biochemical indexes of Jining 100-day chickens; (2) the effects of dietary crude protein levels on the reproductive performance of Jining 100-day chickens; (3) the effects of dietary crude protein levels on the reproductive performance of Jining 100-day chickens; The results showed that dietary crude protein levels significantly affected the number of eggs laid, egg production rate, egg weight, daily egg production, and the number of qualified eggs laid per day (P 0.05), and significantly affected the daily crude protein intake, feed-to-egg ratio (P 0.01), but not significantly. The daily intake of crude protein in Jining 100-day chickens increased significantly with the increase of dietary crude protein level, and the trend was consistent with dietary crude protein level. High protein group (16%, 17%) and low protein group (13%). The difference between 14% and 15% was very significant (P 0.01), and the difference between low protein (13%, 14%, 15%) groups was very significant (P 0.01). Within a certain dietary crude protein level (13% - 16%), the egg weight tended to increase with the increase of crude protein level. The highest dietary crude protein level (17%) did not achieve the highest production performance and the lowest feed-egg ratio. Dietary crude protein levels significantly affected the egg weight of Jining 100-day chickens aged 41-48 weeks (P 0.05), and crude protein levels in a certain diet. Egg weight increased with the increase of dietary crude protein level within the limit of dietary crude protein level (13%-16%). Egg shell hardness (P 0.05) significantly affected 48-week-old eggshell. Egg shell hardness increased with the increase of dietary crude protein level. Dietary protein level was the highest (17%) eggshell hardness. Dietary crude protein levels significantly affected serum total protein, serum albumin, serum uric acid (P 0.05), but did not significantly affect serum urea (P 0.05) at 44 weeks of age. The total number of eggs laid, the number of eggs qualified and the number of chickens laid (P 0.05) were significantly affected by the dietary crude protein levels. The qualified rate of eggs and fertilization rate were not significantly affected by the dietary crude protein levels (P 0.05). The dietary crude protein levels of broilers significantly affected the birth weight of 48-week-old broilers (P 0.05), and the liver weight was significantly affected (P 0.01). Serum uric acid (P 0.05) of newborn chickens hatched with 48-week-old brood eggs was studied. The effects of different crude protein levels in diets on performance, egg quality, serum biochemical indexes, reproductive performance and newborn chickens of Jining 100-day chickens were comprehensively analyzed. A factorial model of protein requirement of Jining 100-day chickens was established to determine the optimum production conditions for Jining 100-day chickens. ADCPI = 0.2680ADG + 0.2711ADEM + 3.2993BW0.75ADCPI = 0.3347ADG + 0.2784ADQEM + 3.3684BW0.75. The optimum dietary crude protein level for Jining 100-day chickens at 41-48 weeks of age was 15.49%. The optimum dietary crude protein level for Jining 100-day chickens at 41-48 weeks of age was 14.81%.
【学位授予单位】：山东农业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：S831.5
本文编号：2187702
[Abstract]:The purpose of this paper is to study the effects of dietary crude protein levels on production performance, egg quality, serum biochemical indexes, reproductive performance and newborn chickens of Jining 100-day chickens, establish a factorial model of protein requirement of Jining 100-day chickens, and determine the optimum protein requirement of Jining 100-day chickens under actual production conditions. 525 healthy Jining 100-day laying hens of 40 weeks old were randomly divided into 5 treatments, 105 chickens in each treatment, 5 replicates in each treatment and 21 chickens in each replicate. The experiment was divided into three parts: (1) the effects of dietary crude protein levels on the performance, egg quality and serum biochemical indexes of Jining 100-day chickens; (2) the effects of dietary crude protein levels on the reproductive performance of Jining 100-day chickens; (3) the effects of dietary crude protein levels on the reproductive performance of Jining 100-day chickens; The results showed that dietary crude protein levels significantly affected the number of eggs laid, egg production rate, egg weight, daily egg production, and the number of qualified eggs laid per day (P 0.05), and significantly affected the daily crude protein intake, feed-to-egg ratio (P 0.01), but not significantly. The daily intake of crude protein in Jining 100-day chickens increased significantly with the increase of dietary crude protein level, and the trend was consistent with dietary crude protein level. High protein group (16%, 17%) and low protein group (13%). The difference between 14% and 15% was very significant (P 0.01), and the difference between low protein (13%, 14%, 15%) groups was very significant (P 0.01). Within a certain dietary crude protein level (13% - 16%), the egg weight tended to increase with the increase of crude protein level. The highest dietary crude protein level (17%) did not achieve the highest production performance and the lowest feed-egg ratio. Dietary crude protein levels significantly affected the egg weight of Jining 100-day chickens aged 41-48 weeks (P 0.05), and crude protein levels in a certain diet. Egg weight increased with the increase of dietary crude protein level within the limit of dietary crude protein level (13%-16%). Egg shell hardness (P 0.05) significantly affected 48-week-old eggshell. Egg shell hardness increased with the increase of dietary crude protein level. Dietary protein level was the highest (17%) eggshell hardness. Dietary crude protein levels significantly affected serum total protein, serum albumin, serum uric acid (P 0.05), but did not significantly affect serum urea (P 0.05) at 44 weeks of age. The total number of eggs laid, the number of eggs qualified and the number of chickens laid (P 0.05) were significantly affected by the dietary crude protein levels. The qualified rate of eggs and fertilization rate were not significantly affected by the dietary crude protein levels (P 0.05). The dietary crude protein levels of broilers significantly affected the birth weight of 48-week-old broilers (P 0.05), and the liver weight was significantly affected (P 0.01). Serum uric acid (P 0.05) of newborn chickens hatched with 48-week-old brood eggs was studied. The effects of different crude protein levels in diets on performance, egg quality, serum biochemical indexes, reproductive performance and newborn chickens of Jining 100-day chickens were comprehensively analyzed. A factorial model of protein requirement of Jining 100-day chickens was established to determine the optimum production conditions for Jining 100-day chickens. ADCPI = 0.2680ADG + 0.2711ADEM + 3.2993BW0.75ADCPI = 0.3347ADG + 0.2784ADQEM + 3.3684BW0.75. The optimum dietary crude protein level for Jining 100-day chickens at 41-48 weeks of age was 15.49%. The optimum dietary crude protein level for Jining 100-day chickens at 41-48 weeks of age was 14.81%.
【学位授予单位】：山东农业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：S831.5
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