scholarly journals Effects of different levels of Hermetia illucens larvae meal on performance, egg quality, yolk fatty acid composition and oxidative status of laying hens

2021 ◽  
Vol 20 (1) ◽  
pp. 256-266
Author(s):  
Xu Liu ◽  
Xin Liu ◽  
Yaling Yao ◽  
Xiangyong Qu ◽  
Jifa Chen ◽  
...  
Author(s):  
R.M. Papaev ◽  
◽  
G.G. Shalamova ◽  
T.Yu. Motina ◽  
M.S. Talan ◽  
...  

The article presents the results of studies of the fatty acid composition of Zophobas morio mealworms and Hermetia illucens larvae. It was found that the insects contained saturated and mono- and polyunsaturated fatty acids. Comparative analysis of insects showed that the most at-tractive in terms of unsaturated acids was the composition of mealworms, where sapienic, linoleic, oleic and cervonic fatty acids prevailed. More than 70 % of the larvae contained saturated fatty ac-ids with a significant proportion of lauric and myristic acids. It was found that the use of mealworms Zophobas morio and larvae of Hermetia illucens in live and dried form in feeding young white rats provided an increase in live weight by 12.1-16.7 and 11.4-14.0 % in comparison with control animals.


2021 ◽  
Vol 2 (4) ◽  
pp. 1164-1174
Author(s):  
Dian Rizki Purba ◽  
Xiao-guang Dong ◽  
Jing Wang ◽  
Hai-jun Zhang ◽  
Guang-hai Qi ◽  
...  

The effect of supplementation ARA oil on production performance, egg quality, fatty acid composition in laying hens were examined on this study. The aims on this study to producing ARA enriched eggs to meet infant nutrition requirements. A total of 450 Roman White laying hens with a similar egg production rate and good body condition at 55 weeks of age were randomly divided into 5 treatments. Each treatment was replicated 6 times with 15 hens per replicate.  Hens were fed basal diets with 0, 2,5%, 1,25%, 0,625%, and 0,3125% ARA oil addition. The supplementation ARA oil was effect to decreased egg production, egg weight, egg mass, daily feed intake and FCR (P<0.05) during 9-12 week, but on egg quality parameters showed slightly changed during the 1-12 week but not consistency and that change was not statistically significant. Arachidonate acid (ARA) was increased by supplementation ARA oil (P<0.05). This effect was detected in directly proportional to the addition of ARA oil on diet. This is opposite effect to DHA, DHA was decreased by supplementation ARA oil (P<0.05) and also effect to ratio ARA/DHA was increased (P<0.05) by supplementation ARA oil.


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