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首页> 外文期刊>Tropical Animal Health and Production >Improving productive and reproductive performance of dual-purpose crossbred hens in the tropics by lecithin supplementation
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Improving productive and reproductive performance of dual-purpose crossbred hens in the tropics by lecithin supplementation

机译：通过补充卵磷脂改善热带地区两用杂交母鸡的生产和生殖性能

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摘要

In order to study the influence of lecithin and vegetable oils on improving productive and reproductive performance, egg quality, and metabolic profile of dual-purpose crossbred hens in the tropics, a total of 224 hens, 47-wk old, 112 each of Gimmizah and Silver Montazah strains were fed seven isonitrogenous diets. Experimental treatments consisted of feeding seven different diets to layers; four isocaloric diets containing either no added lipid (control), 3% vegetable oil mixture, 3% soy lecithin or 6% soy lecithin; and three high-energy level diets, containing an extra 3% vegetable oil mixture, 3% or 6% soy lecithin added to the control diet. Thus, the experimental design was factorial, consisting of seven lipid treatments by two strains of hens. Results indicate that 3% lecithin as an extra ME source, or feeding 11.72 MJ ME/kg diet containing the same level of lecithin, improved productive and reproductive performance of crossbred hens. Moreover, lecithin at 6% as an extra ME supplement significantly increased yolk percentage and improved Haugh unit score and yolk color, while increasing EE digestibility and plasma total lipids. Hen strain had a significant effect only on digestibility of OM, percentage liver and Haugh unit score, with the Gimmizah strain having higher values.
机译：为了研究卵磷脂和植物油对改善热带两用杂种母鸡的生产性能和生殖性能，蛋品质和代谢状况的影响，总共有224头母鸡，47头周龄，吉米扎每头112头，蒙塔扎银菌株接受了七种等氮饮食。实验处理包括将七种不同的饮食喂给产蛋鸡。四种等热量饮食，不添加脂质（对照），3％植物油混合物，3％大豆卵磷脂或6％大豆卵磷脂；以及三种高能饮食，其中添加了3％的植物油混合物，3％或6％的大豆卵磷脂作为对照饮食。因此，实验设计是析因的，由两种母鸡菌株进行的七种脂质处理组成。结果表明，将3％的卵磷脂作为一种额外的ME来源，或以11.72 MJ ME / kg的饲料日粮添加相同水平的卵磷脂，可以改善杂交母鸡的生产和繁殖性能。此外，6％的卵磷脂作为额外的ME补充剂可显着增加蛋黄百分比，改善Haugh单位评分和蛋黄颜色，同时增加EE消化率和血浆总脂质。 Hen菌株仅对OM的消化率，肝脏百分比和Haugh单位评分有显着影响，而Gimmizah菌株的值更高。

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