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首页> 外文期刊>Indian Journal of Poultry Science >Feeding value of high and low tannin sorghum as broiler feed
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Feeding value of high and low tannin sorghum as broiler feed

机译：高，低单宁高粱作为肉鸡饲料的饲用价值

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An experiment was carried out to examine the effect of replacement of maize with three verities of sorghum (i.e., red, yellow and white) varying in tannin content on growth performance and nutrient utilization in broilers. The birds were fed on reference and nine test diets in which the maize moiety of reference diet was replaced at graded level of 50,75 and 100% on equal energy content basis with each variety of sorghum. A metabolic trial at 5* week of age was conducted on experimental broilers involving all the dietary treatments in order to assess the retention of energy, nitrogen, calcium and phosphorus. Cumulative feed intake (g/b) during 0-6 wk was significantly (P<0.01) higher in birds fed on reference diet and lower in those received 100 percent yellow sorghum diet. Body weight gain (BWG) between 0-6 wk was found higher (P<0.05) in the birds fed on reference diet when compared to red sorghum fed group as well as 100 percent yellow and white sorghum diets. Feed conversion ratio (FCR) during0-6 wk, was found better (P<0.01) in birds fed on reference and 50 percent yellow sorghum diets as compared to red sorghum fed diets. The energy metabolisability (%) was significantly (P<0.01) higher on 50% yellow sorghum diet and lower on both 75 and 100% red sorghum diets as compared to those on other diets. Per cent nitrogen retention was significantly (P<0.01) higher in 50% yellow sorghum diet than in 50% white, 75% yellow and 100% red sorghum dietary groups. Ca retention (%) was significantly (P<0.01) higher in birds fed on reference diet than those fed on sorghum based diets. In all the 3 varieties of sorghum, the Ca and P retention was decreased as the level of sorghum increased in the diet. The P retention (%) was highest in birds fed on reference diet and lowest on 100% red sorghum diet. It was concluded that incorporation of high tannin containing red sorghum (tannin content 1.84%) in broiler diet at higher proportions should be limited. But relatively low tannin containing yellow and whitesorghum (tannin content 0.57% and 0.32%, respectively) can be incorporated in broiler diets up to 75% of maize.
机译：进行了一项实验，以检验丹宁含量不同的三种高粱（即红色，黄色和白色）替代玉米对肉鸡生长性能和养分利用的影响。用参比饲料和九种试验饲料喂养禽类，其中以每种能量的高粱以相等的能量含量，以50.75和100％的分级水平替代参比饲料的玉米部分。为了对能量，氮，钙和磷的保留进行评估，对涉及所有饮食处理的实验性肉鸡进行了5周龄的代谢试验。在0-6周内的累积饲料摄入量（g / b）在以参考饮食喂养的鸟类中显着较高（P <0.01），而在以100％黄高粱饮食喂养的鸟类中则较低。与红色高粱饲喂组以及100％黄色和白色高粱饲喂组相比，在参考饲喂组饲喂的鸡中，体重增加（BWG）在0-6周之间较高（P <0.05）。与饲喂高粱红饲料相比，饲喂参考饲料和50％黄高粱饲喂的鸟类在0-6周期间的饲料转化率（FCR）更好（P <0.01）。与其他饮食相比，在50％的黄色高粱饮食中能量代谢率（％）显着（P <0.01）高，而在75％和100％的红色高粱饮食中能量代谢率较低。 50％黄高粱饮食中的氮保留百分比显着高于（P <0.01）50％白色，75％黄色和100％红色高粱饮食组。饲喂参考日粮的鸟类的钙保留量（％）显着高于（P <0.01）饲喂高粱饮食的鸟类。在这三种高粱品种中，随着日粮中高粱含量的增加，钙和磷的保留量降低。以参考饮食喂养的家禽中的P保留率（％）最高，而以100％红高粱饮食为例的最低。结论是，应限制在肉仔鸡日粮中以较高的比例掺入高丹宁含量的红色高粱（丹宁含量为1.84％）。但肉鸡日粮中单宁含量较低的黄和白高粱（单宁含量分别为0.57％和0.32％）可以掺入玉米中。

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