کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5790898 | 1553992 | 2011 | 5 صفحه PDF | دانلود رایگان |
This study was designed to determine the effects on laying performance and egg quality resulting from substitution of soybean meal with dehulled-micronized lupin (Lupinus albus cv. Multitalia) in diet of early phase laying hens. Isa Brown layers, 18Â weeks of age were randomly allocated to 2 dietary treatments and fed for 10Â weeks. Two different durum wheat middlings-based diets were prepared; one containing soybean meal (150Â g/kg) and the other dehulled-micronized lupin (180Â g/kg) as the main protein sources. Feed consumption was recorded daily and egg production was calculated on a hen-day basis; eggs from each group were weekly collected to evaluate egg components and shell quality. A significant effect was found for feed intake (PÂ <Â 0.05) which was lower in layers fed diet containing lupin compared to those fed soybean meal, without however any negative effects on feed efficiency (PÂ <Â 0.10). Egg production and none of egg quality traits examined were influenced by dietary treatment, except for yolk color score that was higher in hens fed the lupin diet (PÂ <Â 0.05) and percentage of albumen higher for lupin diet (PÂ <Â 0.05). These findings indicate that dehulled-micronized lupin results a suitable feed ingredient for early phase laying hens that can be satisfactory substituted to conventional protein source such as soybean meal.
Journal: Livestock Science - Volume 140, Issues 1â3, September 2011, Pages 184-188