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首页> 外文期刊>Poultry Science >Replacement of corn in the diet of broiler chickens using foxtail millet produced by 2 different cultivation strategies.
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Replacement of corn in the diet of broiler chickens using foxtail millet produced by 2 different cultivation strategies.

机译：使用两种不同栽培策略生产的谷子谷子代替肉鸡日粮中的玉米。

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Foxtail millet is well-suited to climatic conditions in semi-arid tropic regions where it is cultivated using both agro-ecologic and conventional cultivation practices. This study evaluated the nutritional value, digestibility, and physiological effects of agro-ecologic and conventionally cultivated foxtail millet in comparison with corn. Chemical and TMEn analysis of foxtail millet cultivated conventionally and agro-ecologically indicated similar nutritional value. In total, 432 eight-day-old Ross 308 broiler chicks, using a 2x3 factorial arrangement, were randomly assigned to 4 replicate pens for each of 6 isonitrogenous and isoenergetic diets. Experimental diets were formulated by replacing corn with conventional or agro-ecologic millet at 3 levels (33, 66, or 100% of corn replacement). Body weight at 21 and 42 d of age was higher (P<0.05) at 100% millet inclusion versus the lower inclusion levels. At 42 d of age, feed intake and feed conversion ratios were also improved (P<0.05) at the 100% millet inclusion level. Similarly, the apparent ileal digestibility of CP increased (P<0.05) for 100% millet diets. There were no differences in ileal digestibility of nutrients between millet growth conditions. Millet inclusion level significantly affected small intestinal morphology such that crypt depth was lowest (P<0.05) in the 100% inclusion group for duodenum, jejunum, and ileum at 28 d of age, and for duodenum and ileum at 42 d of age. The villus crypt ratio was also highest (P<0.05) in the 100% millet inclusion group for jejunum and ileum at 28 d of age, and duodenum, jejunum, and ileum at 42 d of age. Millet growth condition did not markedly affect small intestinal morphology. Serum antibody responses to Gumboro and Newcastle diseases were not affected by millet inclusion level or growth condition. In conclusion, foxtail millet could be considered as an alternate cereal for inclusion in the diet of broiler chickens. Broiler chicken performance and physiological responses to foxtail millet were similar whether grown conventionally or using agro-ecologic practices.Digital Object Identifier http://dx.doi.org/10.3382/ps.2011-01647
机译：谷子非常适合半干旱热带地区的气候条件，该地区使用农业生态和常规耕种方法进行耕种。这项研究评估了与玉米相比，农业生态和常规栽培的谷子的营养价值，消化率和生理效应。传统和农业生态栽培的谷子的化学和TME n 分析显示相似的营养价值。使用2x3因子布置，总共432只8天大的Ross 308肉鸡被随机分配给4种重复笔，分别用于6种等氮和等能饲料。通过用传统或农业生态谷类替代3种水平（33％，66％或100％的玉米替代品）替代玉米来配制实验饮食。在100％的小米包合物中，21和42 d岁的体重较高（ P <0.05），而较低的包合物水平。在42 d龄时，在100％的小米包合物水平下，采食量和饲料转化率也得到了改善（ P <0.05）。同样，对于100％的谷类饮食，CP的表观回肠消化率增加（ P <0.05）。在小米生长条件之间，养分的回肠消化率没有差异。谷子包埋水平显着影响小肠形态，以至于在28 d时十二指肠，空肠和回肠以及十二指肠和回肠的100％包埋组的隐窝深度最低（ P <0.05）年龄为42 d。在100％的小米包埋组中，在28 d时空肠和回肠以及在42 d时十二指肠，空肠和回肠的绒毛隐窝比率也最高（ P <0.05）。小米的生长条件没有明显影响小肠的形态。血清对Gumboro和Newcastle疾病的抗体反应不受by含量或生长条件的影响。总之，谷子小米可以考虑作为替代谷物包含在肉鸡的日粮中。无论采用常规方式还是采用农业生态方式，肉鸡的性能和对谷子的生理反应都相似。数字对象标识符http://dx.doi.org/10.3382/ps.2011-01647

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