当前位置:主页 > 医学论文 > 畜牧兽医论文 >

几种常用饲料添加剂对育成猪生长性能、血液生化指标及经济效益的影响

发布时间:2018-08-16 13:57
【摘要】:本试验研究包膜丁酸钠、包膜氧化锌、枯草芽孢杆菌、枯草芽孢杆菌和丁酸梭菌混合制剂四种常用添加剂对育成猪生长、消化率、血液成分、免疫性能方面的作用效果及经济效益分析,正确认识和使用某些饲料添加剂,以降低饲料成本,从而降低猪场生产成本。试验选取80头初始体重37.50±1.477kg的三元杂交猪([约克夏×长白]×杜洛克),按体重和性别用随机完全区组设计RCB将猪只分为5个处理组,即对照(CON)组、包膜丁酸钠(CSB)组、包膜氧化锌(ZnO)组、枯草芽孢杆菌(H10)组、枯草芽孢杆菌和丁酸梭菌(F10)组,每组4个重复,每个重复4头,根据NRC(1998)饲养标准进行为期6周的饲养试验。在试验期内测定育成猪的生产性能指标、消化率、血液生化和经济效益等指标。试验结果如下:(1)生长性能:丁酸钠组(CSB)、氧化锌组(ZnO)、枯草芽孢杆菌和丁酸梭菌混合制剂组(F10)日增重较对照组分别提高9.47%、9.34%和8.71%,各组间差异不显著(P0.05)。F10组料重比显著低于对照组(P0.05),CSB组与F10组、枯草芽孢杆菌组(H10)与F10组间料重比均有显著趋势(0.05P0.10)。F10组对生长性能的促进作用最佳。(2)消化率:F10组氮摄入分别比对照组和CSB组高7.43%、9.63%,氮沉积和消化分别比对照组高16.19%和17.45%,比CSB组低5.28%和13.04%;CSB组氮沉积和消化分别比对照组高10.06%和2.16%;各试验组与对照组及各试验组间差异不显著(P0.05)。(3)血清生化:CSB组的血清皮质醇含量与对照组间差异显著(P0.05);F10组血清皮质醇显著高于CSB组(P0.05)。各组血清尿素氮含量均低于对照组,F10组与对照组相比有显著趋势(0.05P0.10)。对照组血清葡萄糖含量显著低于ZnO组(P0.05),极显著低于H10组(P0.05);F10组血清葡萄糖含量显著低于ZnO组(P0.05),且极显著低于H10组(P0.01)。CZnO组与对照组间血清IGF-1的含量有显著趋势(0.05P0.10);其它各组IGF-1含量虽高于对照组,但与对照组及各试验组之间差异均不显著(P0.05)。(4)免疫性能:F10组、H10组血清IgG含量显著高于对照组(P0.05);CSB组与F10组、H10组两组间差异显著(P0.05)。各组间血清IgA含量无显著差异(P0.05)。四种添加剂对育成猪免疫性能均有显著的促进效果,其中F10组免疫效果最好。(5)经济效益:育成后期CSB组每头猪所耗的饲料成本显著高于H10组(P0.05);从单位增重耗料成本来看,育成前期对照组显著高于F10组(P0.05);育成后期阶段对照组及CSB组的单位增重所耗成本显著高于H10组(P0.05);育成全期对照组和CSB组单位增重成本都极显著高于F10组(P0.01), CZnO组显著高于F10组(P0.05)。综合各项指标测定结果来看,在育成猪日粮中添加枯草芽孢杆菌和丁酸梭菌混合制剂一定程度上可以改善其生长性能、提高免疫性能、降低饲料成本,有效降低猪场生产成本,可以应用于实际生产中;其他三种添加剂对育成猪无显著效果,在育成猪日粮中可以不添加,以降低饲料成本,从而降低猪场生产成本。
[Abstract]:The effects of sodium butyrate, zinc oxide, Bacillus subtilis and Clostridium butyrate on the growth, digestibility and blood composition of pigs were studied. In order to reduce the feed cost and reduce the production cost of pig farm, the effect of immune function and economic benefit were analyzed, and some feed additives were correctly recognized and used. 80 three-way crossbred pigs ([Yorkshire 脳 Landrace] 脳 Duroc) with initial weight 37.50 卤1.477kg were selected and randomly divided into five treatment groups (control (CON) group, encapsulated sodium butyrate (CSB) group) with random complete block design according to their body weight and sex. Zinc oxide coated (ZnO) group, Bacillus subtilis (H10) group, Bacillus subtilis and Clostridium butyrate (F10) group were fed for 6 weeks according to the standard of NRC (1998). The indexes of production performance, digestibility, blood biochemistry and economic benefit were measured during the trial period. The results are as follows: (1) growth performance: the daily gain of (ZnO), Bacillus subtilis and Clostridium butyrate mixed preparation group (F10) in sodium butyrate group was 9.47% and 8.71% higher than that in control group, respectively. The difference was not significant (P0.05). In the control group (P0.05), CSB group and F10 group, (2) the digestibility of N intake in group F10 was 7.433.63% higher than that of control group and CSB group, and the nitrogen deposition and digestibility were 16.19% higher than that of control group. (2) the ratio of feed to weight of Bacillus subtilis group (H10) to F10 group (0.05P0.10). F10 group had the best promoting effect on growth performance. (2) the digestibility of N uptake in group F10 was 7.433.63% higher than that of control group and CSB group respectively. And 17.45% lower than CSB group 5.28% and 13.04%; Nitrogen deposition and digestibility in CSB group were 10.06% and 2.16% higher than those in control group, and there was no significant difference between each test group and control group and between test group and control group (P0.05). There was significant difference in serum cortisol content between control group and control group (P0.05). Serum cortisol in group F 10 was significantly higher than that in group CSB (P 0.05). The levels of serum urea nitrogen in each group were significantly lower than those in control group and control group (0.05P0.10). The serum glucose content in the control group was significantly lower than that in the ZnO group (P0.05), the serum glucose content in the F10 group was significantly lower than that in the ZnO group (P0.05), and the level of serum IGF-1 in the F10 group was significantly lower than that in the H10 group (P0.01). There was a significant trend (0.05P0.10) in the serum IGF-1 content between the CZnO group and the control group. Although the content of IGF-1 in other groups was higher than that of the control group, there was no significant difference between the other groups and the control group and each test group (P0.05). (4). The content of serum IgG in the H10 group was significantly higher than that in the control group (P0.05) and the difference between the two groups was significant (P0.05). There was no significant difference in serum IgA content among groups (P0.05). Four kinds of additives had significant promoting effect on immune performance of adult pigs. (5) Economic benefit: the feed cost of CSB group was significantly higher than that of H10 group (P0.05), and the feed cost per unit weight gain was significantly higher in CSB group than in H10 group (P0.05), and F10 group had the best immune effect. (5) Economic benefit: the feed cost of CSB group was significantly higher than that of H10 group (P0.05). The cost of weight gain in the control group and CSB group was significantly higher than that in the H10 group (P0.05). The unit weight gain cost of control group and CSB group were significantly higher than that of F10 group (P0.01), CZnO group was significantly higher than F10 group (P0.05). The results showed that adding Bacillus subtilis and Clostridium butyrate to the diet of adult pigs could improve their growth performance, improve their immune performance, reduce the feed cost, and effectively reduce the production cost of pig farms. The other three additives have no significant effect on breeding pigs and can not be added in the diets of adult pigs in order to reduce the feed cost and thus reduce the production cost of pig farms.
【学位授予单位】:延边大学
【学位级别】:硕士
【学位授予年份】:2016
【分类号】:S828.5

【相似文献】

相关期刊论文 前10条

1 Richard C.Wahtstram ,George W.Libal ,李玫;猪圈舍型式对生长、育成猪的影响[J];北京农业科技;1981年04期

2 安秀芝;;育成猪栏的大小[J];国外畜牧学(饲料);1989年05期

3 李佐平;张景阳;;育成猪硒缺乏症的防治[J];黑龙江畜牧科技;1992年02期

4 王怀中;;冬春季节养好育成猪的关键措施[J];农业知识;2009年03期

5 桂吉生;;外购育成猪隔离观测饲养管理技术[J];畜牧兽医杂志;2011年05期

6 张兆军;陈涛;;育成猪饲养管理应掌握的几个方面[J];养殖技术顾问;2012年06期

7 杜立新;西北地区部分育成猪种选育模式的遗传学评估[J];宁夏农学院学报;1990年02期

8 汪开英,R.Geers;湿热环境中育成猪的体温节律研究(英文)[J];浙江大学学报(农业与生命科学版);2004年06期

9 刘卫东;王章存;程璞;马伟;;大米蛋白肽对育成猪生产性能、养分代谢和血液生化指标的影响[J];中国粮油学报;2011年07期

10 王应龙;;育成猪的生物学特性及饲养管理[J];养殖技术顾问;2012年11期

相关重要报纸文章 前4条

1 ;育成猪的饲养管理与保健[N];中国畜牧兽医报;2006年

2 北京华都种猪繁育有限责任公司 刘俊强;育成猪的饲养管理与保健[N];中国畜牧兽医报;2005年

3 ;育成猪的饲养管理与保健[N];中国畜牧兽医报;2006年

4 ;育成猪的饲养管理与保健[N];中国畜牧兽医报;2006年

相关硕士学位论文 前1条

1 史焕;几种常用饲料添加剂对育成猪生长性能、血液生化指标及经济效益的影响[D];延边大学;2016年



本文编号:2186184

资料下载
论文发表

本文链接:https://www.wllwen.com/yixuelunwen/dongwuyixue/2186184.html


Copyright(c)文论论文网All Rights Reserved | 网站地图 |

版权申明:资料由用户7c12b***提供,本站仅收录摘要或目录,作者需要删除请E-mail邮箱bigeng88@qq.com