Volume 20, Issue 6 (2018)                   JAST 2018, 20(6): 1115-1126 | Back to browse issues page

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Beheshti Rooy S, Ziaei N, Ghoreishi S M, Ganjian Khenari A. Comparison of the Effect of Different Levels of Scenedesmus sp. Microalgae on Growth, Immune Response, Carcass Traits, and Some Blood Parameters of Broiler Chickens. JAST. 2018; 20 (6) :1115-1126
URL: http://jast.modares.ac.ir/article-23-20182-en.html
1- Department of Animal Sciences, Faculty of Agriculture, University of Jiroft, Jiroft, Islamic Republic of Iran.
2- Department of Animal Sciences, Faculty of Agriculture, Shiraz University, Shiraz, Islamic Republic of Iran.
3- Caspian Research Group of Fisheries and Water Pollutants (CRFWP), Sari, Islamic Republic of Iran.
Abstract:   (4283 Views)
A study was conducted to compare the effects of different levels of a suspension of Scenedesmus Microalgae (SM) on growth, immune response, carcass traits, and some blood parameters of broilers. Two hundred 1-d-old broiler chicks were randomly assigned to each of 5 dietary treatments. Treatments consisted of: T1 (100% drinking water), T2 (50% drinking water+50% SM), T3 (25% drinking water+75% SM), T4 (100% SM) and T5 [(Basal diet (BD) + 2.5 mg Virginamycin kg-1 diet)] with 4 replicate cages of 10 birds each. The birds receiving T3 and T4 had higher feed intake compared with the control and antibiotic groups at 1-10 days (P< 0.001). Water replacement by 100% SM increased body weight (P< 0.001) and reduced feed conversion ratio (P< 0.05) in broilers. Inclusion of 100% SM increased SRBC antibody titer in primary and secondary responses compared to that of the control group. (P< 0.05). The birds receiving T4 had lower serum content of triglycerides and cholesterol compared with the control group (P< 0.05). Chickens at the T4 group showed higher relative breast weight compared with the control group (P< 0.05). It was concluded that SM at the levels of 75 and 100% can improve growth performance, immune responses, and some blood parameters of broiler chicks.
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Article Type: Research Paper | Subject: Agricultural Economics/Agriculture Marketing and Supply Chains
Received: 2016/06/23 | Accepted: 2018/01/16 | Published: 2018/11/15

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