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首页> 外文期刊>Animal Nutrition and Feed Technology >Influence of Diet Physical Form and Fines Proportions in Pellet Diet on Feed Quality, Performance and Microbial Population in Digestive Organs of Broiler Chickens
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Influence of Diet Physical Form and Fines Proportions in Pellet Diet on Feed Quality, Performance and Microbial Population in Digestive Organs of Broiler Chickens

机译：饮食体育和罚款比例在肉鸡鸡消化器官饲料质量，性能和微生物种群中的影响

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摘要

Two experiments were conducted to investigate the effect of physical forms and fine proportions in pelleted diets (simple pellet and expanded pellet) on the performance of broilers. In Exp. 1, 360 one day old male chicks were used to evaluate the effects of different physical forms on performance and microbial population in the digestive organs. Body weight (BW) gain of broiler chickens fed pelleted diets was improved. Pellet physical quality analysis showed a lower pellet hardness and pellet durability index for simple pellet compared with expanded pellet (P 0.05). Moreover, the fines rate in expanded pellet lower than simple pellet. Regardless of pelleting method, broilers fed pelleted diets exerted lower relative weight of gizzard, higher pH in gizzard and lower pH in jejunum, ileum and cecum than those of broilers fed mash. Broilers fed simple pellet diet had higher jejunal weight than the expanded pellet diet. Pellet fed broilers had lower numbers of coliforms in cecum than mash fed broilers. In Exp. 2, 480 one day old male Ross 308 chicks were used to evaluate the effect of fine proportion in pellet diet on performance and microbial population in different digestive organs. The BW gain of broilers decreased linearly as the fine proportion increased. Feed conversion ratio was tended to be linearly higher (P=0.057) with decreasing proportion of fines. Collectively, our data indicate that high quality pellet has the potential to improve growth performance, but no difference between simple pellet and expanded pellet diet. Furthermore, increasing the rate of fines linearly decrease the growth performance of broilers.
机译：进行了两次实验，以研究物理形式和精细比例在颗粒状饮食中的效果（简单的颗粒和膨胀颗粒）对肉鸡的性能。在exp。 1,360一天，旧的雄性小鸡用于评估不同物理形式对消化器官中性能和微生物种群的影响。提高了肉鸡鸡的体重（BW）增益喂食颗粒饮食。与膨胀颗粒相比，颗粒物理质量分析显示出简单的颗粒的颗粒硬度和颗粒耐久性指数（P <0.05）。此外，膨胀颗粒中的细粒率低于简单的颗粒。无论颗粒法如何，肉体喂食颗粒的饮食都施加了较低的眩晕重量，高于Gizar的pH值，在Jejunum，Hereum和Cecum中的pH值低于饲喂醪的肉鸡。滋养的肉鸡喂食简单的颗粒饮食比扩张的颗粒饮食更高。颗粒喂食肉鸡在盲肠中具有较少数量的大肠菌体，而不是饲料饲喂肉鸡。在exp。 2,480一天雄性罗斯308雏鸡用于评估颗粒饮食中的细比例对不同消化器官的性能和微生物种群的影响。随着精细比例的增加，肉鸡的BW增益线性降低。饲料转化率趋于线性更高（P = 0.057），细粒比例降低。集体，我们的数据表明，高品质的颗粒具有提高生长性能的潜力，但单纯颗粒与膨胀颗粒饮食没有差异。此外，提高细粒的速率线性降低了肉鸡的生长性能。

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