کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8491088 | 1552352 | 2017 | 51 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of yellow mealworm larvae (Tenebrio molitor) inclusion in diets for female broiler chickens: implications for animal health and gut histology
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of yellow mealworm larvae (Tenebrio molitor) inclusion in diets for female broiler chickens: implications for animal health and gut histology Effects of yellow mealworm larvae (Tenebrio molitor) inclusion in diets for female broiler chickens: implications for animal health and gut histology](/preview/png/8491088.png)
چکیده انگلیسی
The aim of the present study was to evaluate the animal performance, haematochemical parameters, intestinal morphology and histological features of broiler chickens fed diets including Tenebrio molitor (TM) larvae meal. A total of 160 female broiler chicks (Ross 708) at one-day of age were randomly allotted to four dietary treatments: a control (C) group and three TM groups, in which TM meal was included at 50 (TM50), 100 (TM100) and 150â(TM150) g/kg, respectively. Each group consisted of five pens as replicates, with eight chicks per pen. After the evaluation of growth performance and haematochemical parameters, two birds per pen were slaughtered at 40Â days and carcass traits were recorded. Morphometric investigations were performed on duodenum, jejunum and ileum and histopathological alterations were assessed for liver, spleen, thymus, bursa of Fabricius, kidney and heart. The live weight (LW) showed a linear (12Â days, PÂ <Â 0.05, maximum with TM150) and quadratic response (40Â days, PÂ <Â 0.05, maximum with TM50) to dietary TM meal inclusion. The average daily gain (ADG) showed a linear increase (1-12Â days, PÂ <Â 0.05, maximum with TM150) in response to TM meal utilization. A linear effect (1-12 and 12-25Â days, PÂ <Â 0.01 and PÂ <Â 0.05, maximum with TM150 and TM50) was observed for the daily feed intake (DFI). The feed conversion ratio (FCR) showed a linear response to TM utilization in the period 12-25Â days (PÂ <Â 0.01, maximum with TM150). A quadratic effect (PÂ <Â 0.05, maximum with TM50) was observed for the carcass weight. The abdominal fat weight and percentage showed a linear response to dietary TM meal inclusion (PÂ <Â 0.05 and PÂ <Â 0.01, maximum with TM150 and TM100). A quadratic increase (PÂ <Â 0.05, maximum with TM100) was observed for the erythrocytes, while the albumin and GGT showed a linear and quadratic decrease (PÂ <Â 0.05, minimum with TM100) in relation to TM utilization. Gut morphology and histopathological findings were not significantly influenced (PÂ >Â 0.05) by dietary TM meal inclusion. The present study suggests that increasing levels of dietary TM meal inclusion in female broiler chickens diets may improve body weight and feed intake, but can partially worsen feed efficiency. However, positive effects on carcass traits and haematochemical parameters related to TM meal utilization are observed, along with no negative influence on gut morphology and histological findings.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Animal Feed Science and Technology - Volume 234, December 2017, Pages 253-263
Journal: Animal Feed Science and Technology - Volume 234, December 2017, Pages 253-263
نویسندگان
I. Biasato, L. Gasco, M. De Marco, M. Renna, L. Rotolo, S. Dabbou, M.T. Capucchio, E. Biasibetti, M. Tarantola, C. Bianchi, L. Cavallarin, F. Gai, L. Pozzo, D. Dezzutto, S. Bergagna, A. Schiavone,