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亚麻荠粕可提高蛋鸡所产鸡蛋的n-3脂肪酸含量,且不影响鸡蛋品质或产蛋性能。

Camelina meal increases egg n-3 fatty acid content without altering quality or production in laying hens.

作者信息

Kakani Radhika, Fowler Justin, Haq Akram-Ul, Murphy Eric J, Rosenberger Thad A, Berhow Mark, Bailey Christopher A

机构信息

Department of Poultry Science, Texas A&M University, Kleberg Center, College Station, TX 77843-2472, USA.

出版信息

Lipids. 2012 May;47(5):519-26. doi: 10.1007/s11745-012-3656-3.

Abstract

Camelina sativa is an oilseed plant rich in n-3 and n-6 fatty acids and extruding the seeds results in high protein meal (*40%) containing high levels of n-3 fatty acids. In this study, we examined the effects of feeding extruded defatted camelina meal to commercial laying hens, measuring egg production, quality, and fatty acid composition. Lohmann White Leghorn hens (29 weeks old) were randomly allocated to three dietary treatment groups (n = 25 per group) and data was collected over a 12 week production period. All the treatment groups were fed a corn soy based experimental diet containing 0% (control), 5, or 10% extruded camelina meal. We found no significant differences in percent hen-day egg production and feed consumed per dozen eggs. Egg shell strength was significantly higher in both camelina groups compared to the controls. Egg total n-3 fatty acid content increased 1.9- and 2.7-fold in 5 and 10% camelina groups respectively relative to the control. A similar increase in DHA content also occurred. Further camelina meal did not alter glucosinolate levels and no detectable glucosinolates or metabolic product isothiocyanates were found in the eggs from either the 5 or 10% camelina groups. These results indicate that camelina meal is a viable dietary source of n-3 fatty acids for poultry and its dietary inclusion results in eggs enriched with n-3 fatty acids.

摘要

荠蓝是一种富含n-3和n-6脂肪酸的油料作物,对其种子进行挤压处理可得到高蛋白粕(约40%),其中含有高水平的n-3脂肪酸。在本研究中,我们检测了给商品蛋鸡饲喂挤压脱脂荠蓝粕的效果,测定了产蛋量、蛋品质和脂肪酸组成。罗曼白来航蛋鸡(29周龄)被随机分为三个日粮处理组(每组n = 25只),并在12周的生产期内收集数据。所有处理组均饲喂以玉米-大豆为基础的试验日粮,其中分别含有0%(对照组)、5%或10%的挤压荠蓝粕。我们发现,母鸡日产蛋率和每打鸡蛋的耗料量没有显著差异。与对照组相比,两个荠蓝粕组的蛋壳强度均显著更高。相对于对照组,5%和10%荠蓝粕组鸡蛋的总n-3脂肪酸含量分别增加了1.9倍和2.7倍。DHA含量也出现了类似的增加。此外,荠蓝粕并未改变硫代葡萄糖苷的水平,在5%或10%荠蓝粕组的鸡蛋中均未检测到硫代葡萄糖苷或其代谢产物异硫氰酸盐。这些结果表明,荠蓝粕是家禽日粮中n-3脂肪酸的可行来源,在日粮中添加荠蓝粕可使鸡蛋富含n-3脂肪酸。

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