不同能量蛋白水平对5～8周龄雌性罗曼鹅和皖西白鹅生产性能和营养代谢的影响

发布时间：2018-07-12 12:14

本文选题：罗曼鹅 + 皖西白鹅　；参考：《扬州大学》2015年硕士论文

【摘要】：试验以罗曼鹅和皖西白鹅为研究对象,通过饲养试验、比较屠宰试验、代谢试验和部分血清生化指标的差异的比较,研究日粮能量和蛋白质水平对5-8周龄罗曼鹅和生产性能、屠宰性能、部分血液生化指标及养分表观利用率的影响。以便在养殖实践中为肉鹅制定适宜的饲粮能量与蛋白质需要量提供参考。主要研究结果如下：1能量蛋白水平对5-8周龄雌性罗曼鹅和皖西白鹅生产性能的影响试验采用2×2×2因子试验设计,选取体重相近的4周龄雌性皖西白鹅和罗曼鹅各40只,分组进行能量蛋白质表观利用率的对比测定。试验饲粮的代谢能水平分别为11.49MJ/kg和12.12 MJ/kg,粗蛋白质水平分别为14%和16%。结果表明：(1)饲粮能量平对5-8周龄罗曼鹅生产性能有影响显著(P0.05),蛋白水平对5-8周龄罗曼鹅生产性能无显著影响(P0.05)。罗曼鹅在相同能量水平时低蛋白水平组生产性能较好,在相同蛋白水平时高能量水平组生产性能较高。(2)饲粮能量蛋白水平对5-8周龄皖西白鹅生产性能无显著影响(P0.05)。皖西白鹅在相同能量水平时高蛋白水平组生产性能较好,在相同蛋白水平时高能量水平组生产性能较高。2能量蛋白水平对5-8周龄雌性罗曼鹅和皖西白鹅屠宰性能的影响(1)饲粮能量水平对5-8周龄鹅胸肌率影响显著(P0.05),蛋白水平对胸肌率无显著影响(P0.05)。饲粮能量蛋白水平对5-8周龄鹅其他屠宰性能无显著影响(P0.05)。(2)5-8周龄鹅的腹脂率在相同能量水平时,低蛋白水平饲粮组腹脂率较低,在相同蛋白水平时高能量水平饲粮组腹脂率较低：而其他屠宰指标在相同能量水平时,低蛋白水平饲粮组较高,在相同蛋白水平时,高能量水平饲粮组较低。3能量蛋白水平对5-8周龄雌性罗曼鹅和皖西白鹅血液生化指标的影响饲粮能量蛋白水平对5-8周龄鹅血清生化指标影响显著(P0.05)；能量水平对血清激素指标影响显著(P0.05),而蛋白水平对血清激素指标则无显著影响(p0.05)。血液各指标浓度在相同能量水平时,大部分在低蛋白水平饲粮组较高,在相同蛋白水平时,低能量水平饲粮组较低,这与本试验中的5-8周龄生产性能和屠宰性能存在一定的关联。4能量蛋白水平对5-8周龄雌性罗曼鹅和皖西白鹅养分代谢的影响(1)饲粮能量供给量对鹅食入能量及粗蛋白质表观利用率的影响极显著(P0.01),而饲粮粗蛋白质供给量对鹅食入能量及粗蛋白质表观利用率的影响不显著(P0.05)。饲粮代谢能粗蛋白质水平对5-8周龄鹅脂肪、粗纤维利用率影响显著(P0.05),并且在代谢能为11.49MJ/kg,粗蛋白质为14%的饲粮能量、蛋白质及纤维的利用率较高。脂肪则在代谢能水平11.49MJ/kg,粗蛋白质水平16%情况下最高。(2)5-8周龄肉鹅对代谢能为11.4 MJ/kg,粗蛋白质为14%的饲粮的养分利用率较高,且皖西白鹅鹅与罗曼鹅养分利用率差异显著(P0.05)。综合本试验所有内容,并且考虑到鹅较强的耐粗饲特性,应在养鹅实际生产中注意节约饲料成本,因此建议在饲养时选择较低的代谢能和粗蛋白质水平的饲粮。
[Abstract]:The effects of dietary energy and protein levels on the 5-8 week old Roan goose and production performance, slaughter performance, partial blood biochemical indexes and nutrient apparent utilization rate were studied by comparison of the feeding test, the comparison of the slaughter test, the metabolic test and the difference of some serum biochemical indexes. The results are as follows: 1 the effects of energy protein level on the production performance of 5-8 weeks old female Roan goose and Wanxi White Goose were tested by 2 x 2 x 2 factor design, and 40 female Wanxi White Goose and Roman goose, each of the 4 weeks old, were selected. The metabolic energy levels of the experimental diet were 11.49MJ/kg and 12.12 MJ/kg, respectively, and the crude protein levels were 14% and 16%., respectively, and the results showed that (1) the diet energy level had a significant effect on the performance of the 5-8 week old Luo Mane (P0.05), and the protein level had no significant effect on the production performance of the 5-8 week old Roan goose Effect (P0.05). The production performance of low protein level group at the same energy level was better and the high energy level group had higher production performance at the same protein level. (2) the dietary energy protein level had no significant effect on the production performance of Wanxi White Goose at the age of 5-8 weeks (P0.05). The effect of high energy level.2 energy protein level on the slaughter performance of 5-8 weeks old female Roan goose and Wanxi White Goose at the same protein level (1) the dietary energy level had significant effect on the breast muscle rate of 5-8 weeks old goose (P0.05), and the protein level had no significant effect on the breast muscle rate (P0.05). The level of dietary energy protein was 5-8 weeks. The other slaughter performance of the age goose was not significantly affected (P0.05). (2) the abdominal fat rate of the low protein diet group was lower at the same energy level at the same energy level in the 5-8 week old goose, and the abdominal fat rate in the high energy level diet group at the same protein level was lower. While the other slaughtering indexes were higher in the same energy level, the low protein level diet group was higher, and the same protein was in the same protein level. The effect of low.3 energy protein level on the blood biochemical indexes of 5-8 weeks old female Roan goose and Wanxi White Goose was significantly influenced by the level of energy protein on the serum biochemical indexes of 5-8 weeks old goose (P0.05), the energy level had significant influence on the serum hormone index (P0.05), and the protein level was the serum hormone index in the high energy level diet group. There was no significant effect (P0.05). At the same energy level, most of the blood levels were higher in the low protein diet group. At the same protein level, the low energy level diet group was lower. There was a certain correlation between the production performance and slaughter performance of the 5-8 week age in this experiment with the.4 energy protein level on the 5-8 week old female Roan goose. The influence of nutrient metabolism in Wanxi White Goose (1) the effect of dietary energy supply on the intake energy and apparent utilization rate of crude protein was very significant (P0.01), but the effect of dietary crude protein supply on goose feeding energy and apparent utilization rate of crude protein was not significant (P0.05). The level of crude protein metabolism of diet on 5-8 weeks old goose fat and crude fiber The utilization ratio was significant (P0.05), and the dietary energy of 11.49MJ/kg and crude protein was 14%, and the utilization of protein and fiber was higher. The fat was highest at the metabolic energy level 11.49MJ/kg and the crude protein level 16%. (2) the nutrient utilization ratio of the 5-8 week old meat goose to the diet with metabolic energy of 11.4 MJ/kg and the crude protein 14% was higher. The nutrient utilization ratio of white goose and Roan goose in West Anhui was significant (P0.05). Considering all the contents of this experiment and considering the strong forage resistance characteristics of the goose, the cost of feed should be paid attention to in the actual production of goose. Therefore, it is suggested that the diet of low metabolic energy and crude protein should be selected at the time of feeding.
【学位授予单位】：扬州大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：S835.5

【参考文献】