EFFECT OF DIETARY HUMIC SUBSTANCES SUPPLEMENTATION ON PERFORMANCE AND IMMUNITY OF JAPANESE QUAIL. By
EFFECT OF DIETARY HUMIC SUBSTANCES SUPPLEMENTATION ON PERFORMANCE AND IMMUNITY OF JAPANESE QUAIL. By
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膳食腐殖质补充剂对日本鹌鹑性能和免疫力的影响。
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
M. Abdel‐Mageed
中科院分区：
文献类型：
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作者：
M. Abdel‐Mageed
本研究使用400只1日龄未雌雄化的日本鹌鹑雏鸡进行，将其平均分为4组，每组4个重复。本试验旨在研究饲粮腐殖物质（HS）对日本鹌鹑生长和产蛋性能的影响。本试验配制了一种试验用的开育成期基础日粮（24%CP和2900 kcal ME/kg日粮）和一种蛋鸡基础日粮（20%CP和2900 kcal ME/kg日粮）。第1组雏鸡饲喂基础日粮，不添加任何HS作为对照组。第2、3、4组分别在基础日粮中添加10、20、30 ml HS/kg日粮。因此，4个试验日粮处理进行了研究，在启动生长期和产蛋期。在生长期内，对猪的生长性能、胴体性状、胫骨性状、绒毛高度、肠道微生物数量、pH值及部分血清生化指标进行了测定。产蛋期测定产蛋性状、蛋品质和孵化参数。结果表明，在日本鹌鹑生长期日粮中添加10或20 ml/kg的HS，其增重、屠宰率、胸、腿、肝率、胫骨密度、胫骨强度、胫骨灰分、钙、磷含量及血清钙、磷含量最高。产蛋期试验结果表明，在日本鹌鹑日粮中添加10或20 ml/kg的HS，对蛋重、蛋重、蛋比重、蛋壳厚度、蛋壳率、孵化率、出雏重和佝偻病率的改善效果最好。从营养学角度看，在本试验条件下，在日本鹌鹑日粮中添加腐殖酸10或20 ml/kg，对日本鹌鹑的生长性能、胴体和胫骨性状、血清生化指标、产蛋性状、蛋品质和孵化参数的改善效果相似。
This study was conducted using 400 unsexed 1-day-old Japanese quail chicks, which were equally divided into 4 groups of 4 replicates each. The experiment aimed to investigate the effects of dietary humic substances (HS) on growing and laying performance of Japanese quail. An experimental starter-grower basal diet (24% CP and 2900 kcal ME/kg diet) and a layer basal diet (20% CP and 2900 kcal/kg diet) were formulated. The 1 st group of chicks was fed the basal diet without any supplementation of HS as a control group. The 2 nd , 3 rd and 4 th groups were fed the basal diet supplemented with 10, 20 and 30 ml HS/kg diet; respectively. Therefore, 4 experimental dietary treatments were studied during starter-grower and layer periods. During growing period, growing performance, carcass traits, tibia bone traits, villus height, intestinal microbial count and pH and some serum biochemical indexes were determined. During laying period, egg production traits, egg quality and hatching parameters were determined. The main results during growing period showed that supplementing Japanese quail diets with HS at a level of 10 or 20 ml/kg diet gave the highest body weight gain; percentages of dressing, breast, thighs and liver; tibia density and strength; percentages of tibia ash, Ca and P as well as serum Ca and P %. The main results during laying period showed that supplementing Japanese quail diets with HS at a level of 10 or 20 ml/kg diet gave the best improvement in egg weight and mass, egg specific gravity, egg shell thickness, egg shell %, hatchability %, hatch chick weight value and rickets %. From the nutritional point of view, under conditions of current experiment, it could be concluded that Japanese quail fed diets supplemented with humic substances at a level of 10 or 20 ml per kg diet showed the similar improvement in growth performance, carcass and tibia traits, serum biochemical indexes, egg production traits, egg quality and hatching parameters.