Leili Abdali; Somayyeh Salari; Mohammad Reza Ghorbani; Shima Hossini Far
Volume 25, Issue 1 , April 2023, , Pages 107-122
Abstract
An experiment was conducted to determine the effects of autolyzed yeast with enzyme supplementation and barley particle size on energy and protein efficiency ratio, immune system and ileal digestibility with 400 one-day-old Ross 308 broiler chickens from both sexes in completely randomized design with ...
Read More
An experiment was conducted to determine the effects of autolyzed yeast with enzyme supplementation and barley particle size on energy and protein efficiency ratio, immune system and ileal digestibility with 400 one-day-old Ross 308 broiler chickens from both sexes in completely randomized design with factorial arrangement 2×4 with 8 treatments, 5 replicates from 1 to 35 days of age. The experimental treatments included type of additive (without additive, enzyme, autolyzed yeast and autolyzed yeast with enzyme) and barley particle size (fine (2 mm) and coarse (8 mm)). Supplementation of autolyzed yeast and enzyme improved FCR compared to the treatment without additives (P>0.05). Autolyzed yeast with coarse barley particles increased the European efficiency factor, energy and protein efficiency ratio compared to other treatments (P>0.05). Supplementation of enzyme led to a decrease in abdominal fat percentage compared to other treatments (P<0.05). Autolyzed yeast with enzyme increased the length and dry matter percentage of the tibia compared to the treatment without additives (P<0.05). Addition of autolyzed yeast with enzyme improved the response immune system compared to other treatments (P<0.05). Supplementation of autolyzed yeast with enzyme improved the ileal digestibility compared to other treatments (P<0.05). Addition autolyzed yeast alone and with enzyme decreased litter pH compared to the treatment receiving enzyme alone and the treatment without additive (P<0.05). As summary, autolyzed yeast with enzyme can be used to improve the performance of broiler chickens fed diets containing barley.
Mehdi Heidari Amaleh; Ahmad Zare Shahneh; Mojtaba Zaghari
Volume 21, Issue 3 , September 2019, , Pages 401-407
Abstract
The effect of Pioglitazone and Curcumin on lipid metabolism and plasma metabolites of broiler breeder was investigated as a completely randomized design with three treatments and four replications by using of 60 hens at age 45 weeks during 10 weeks. Experimental treatments including: 1) Control ...
Read More
The effect of Pioglitazone and Curcumin on lipid metabolism and plasma metabolites of broiler breeder was investigated as a completely randomized design with three treatments and four replications by using of 60 hens at age 45 weeks during 10 weeks. Experimental treatments including: 1) Control (basal diet), 2) Adding 20 mg/bird/day Pioglitazone to diet and, 3) Adding 20 mg/bird/day Curcumin to diet. At the end of experiment, blood samples were collected, and birds were slaughtered. The results showed that hens receiving Pioglitazone or Curcumin had higher egg production and shell thickness when compared with control group (p<0.05). However, the yolk and egg weight of birds in the control group were higher than two another groups (p<0.05). Plasma concentrations of glucose, triglycerides and cholesterol were lower in hens feeding Pioglitazone or Curcumin than control (p<0.05). Liver and abdominal fat weight and adipocyte diameter were lower in birds receiving Pioglitazone or Curcumin (p<0.05). Based on current results, dietary supplementation of Pioglitazone or Curcumin, through lowering plasma lipids and subsequently positive influence on abdominal fat tissue and liver, could improve production in broiler breeders.