Application of Meal Feeding and Skip-A-Day Feeding With or Without Probiotics for Broiler Chickens Grown at High-Altitude to Prevent Ascites Mortality
Application of Meal Feeding and Skip-A-Day Feeding With or Without Probiotics for Broiler Chickens Grown at High-Altitude to Prevent Ascites Mortality
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添加或不添加益生菌的餐饲和隔日饲喂在高海拔肉鸡预防腹水死亡中的应用
DOI：
10.3844/ajavsp.2010.13.19
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发表时间：
2010
影响因子：
--
通讯作者：
F. Khajali
中科院分区：
文献类型：
--
作者：
A. Saffar;F. Khajali
问题说明：在高海拔地区生长的肉鸡中，腹水是一种常见的与快速生长有关的问题，在高海拔地区，氧气分压较低，勉强足以支持生长性能和腹水相关变量。供氧器官与需氧器官生长不匹配导致肉鸡腹水。在本研究中，肉仔鸡分别饲喂含益生菌和不含益生菌两种类型的饲粮，腹水的发生与机体器官生长速度的变化有关。方法:四百名男性陈肉用鸡小鸡被随机分配在一个完全随机设计五个治疗方法:(1)对照组美联储随意在整个实验(2)一群受到餐喂食第5 - 11在天的年龄与t ime从08-12 h - h,(3)一组类似于治疗2除了收到了益生菌,(4)与24小时禁食sk ip-a-day喂养天9和11,(5)一群类似于治疗4除了跟从益生菌。限饲期间仅在饮用水中添加1 g L -1的益生菌。1-49日龄在地板上饲养的肉鸡。结果：在试验条件下使用的两种限饲方案均比完全饲喂的对照组性能差，但在试验结束时恢复了正常生长。限饲后胴体和乳房产量立即显著降低（p <0.05），后期无显著降低。终止限饲后，心脏和肝脏百分比呈相反的增长模式。限制收费对腹部脂肪沉积没有一致的影响。限饲组肉鸡右心室占总心室的比例显著（p<0.05）降低。益生菌对代偿性生长没有有益影响，但它们倾向于降低腹水死亡率。结论：早期限饲不影响体器官比例生长，对腹水发生率无显著影响。益生菌对预防腹水有积极作用。
Problem statement: Ascites is a common rapid-growth-related problem in broiler chickens grown at high altitude where the partial pressure o f oxygen is low and is marginally adequate to support the growth performance and ascites-related variables. A mismatch between the growth of oxygen supplying organs and the oxygen demanding organs causes ascites in broiler chickens. In the present study, broilers were subjected to two types of feed restri ction with or without probiotics and changes in the growth rate of body organs were attr ibuted to the incidence of ascites. Approach: Four hundred male day-old broiler chicks were randomly assigned in a completely randomized design to five treatments: (1) a control group fed ad libitum throughout the experiment (2) a group subjected to meal feeding during 5-11 days of age with feeding t imes from 08-12 h and 13-17 h, (3) a group similar to treatment 2 except to received probiotics, (4) a sk ip-a-day feeding with 24 h fasting on days 9 and 11 and (5) a group similar to treatment 4 except to receiv ed probiotics. Probiotics was only used during the feed restriction at 1 g L -1 in the drinking water. Broilers reared on litter f looring from 1-49 days of age. Results: Both feed restriction programs used under condition s of the experiment resulted in poorer performance relative to the full-fed control but re tarded growth caught u p at the end of experiment. Carcass and breast yield were significantly (p <0.05) reduced right after feed restriction but not later on. Heart and liver percentages showed a reverse growth pattern after termination of feed restriction. Fee d restriction had no consistent effect on abdominal f at deposition. Broilers subjected to the feed restr iction had significantly (p<0.05) lower proportion of righ t ventricle to total ventricles. Probiotics had no beneficial impact on the compensatory growth though they tended to reduce the mortality from ascites. Conclusion: Early feed restriction did not influence the propor tional growth of body organs and had no significant impact on ascites incidence. Probiotics had a positive effect in prevention of ascites.