Nahid Zahroojian; Hossein Moravej; Mojtaba Zaghari; Saeed Aminzadeh
Abstract
This study was conducted to evaluate the effects of type of poultry on apparent metabolisable energy value of two soybean meal (processed and non-processed SBM).In this study, 36 broiler breeder hens (Ross 308, 62 weeks), 72 male broiler chickens (Ross 308, 35 days) and 36 commercial layer hens (Hyline ...
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This study was conducted to evaluate the effects of type of poultry on apparent metabolisable energy value of two soybean meal (processed and non-processed SBM).In this study, 36 broiler breeder hens (Ross 308, 62 weeks), 72 male broiler chickens (Ross 308, 35 days) and 36 commercial layer hens (Hyline W36, 40 weeks) were used. Dietary treatments were contained a reference diet and two test diets. In the test diets 30 percent of corn, SBM and sunflower oil replaced by processed or non-processed soybean meal. In all three experiments, metabolisable energy of ingredients measured by excreta collection using celite as a marker. The results indicated that the AMEn ofprocessed and non-processed soybean meal for broiler breeder hens was higher than broiler chickens and commercial layer hens. Our results showed that the AMEn of processed SBM were significantly higher than AMEn of non-processed soybean meal (2626.08 vs 2274.75 for broiler breeder hens and 2466.0 vs 1993.6 for broiler chickens and 2344.46 vs 2079.75 kcal/kg for layer hens). In conclusion, the results showed that the metabolisable energy intake of ingredients were different among different birds and processing could increase the nutritional value of soybean meal.
Elahe Rostami Gohari; Mohsen Afsharmanesh; Hadi Tavakkoli
Abstract
This experiment was conducted to investigate the effect of synbiotic and two levels of dried garlic powder on performance during 1-49 and ileum morphology and microbial population at 49d of age in broiler chicks. The experiment was conducted in a completely randomized design with 5 treatments, 4 replicates ...
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This experiment was conducted to investigate the effect of synbiotic and two levels of dried garlic powder on performance during 1-49 and ileum morphology and microbial population at 49d of age in broiler chicks. The experiment was conducted in a completely randomized design with 5 treatments, 4 replicates of 10 chicks per replicate. The dietary treatments consisted of 1) control diet without additives, 2) control diet plus 200 mg virginamycin/kg diet, 3) control diets containing 500 mg synbiotic/kg diet, 4, 5) control diet containing 0.2 and 0.4 percent garlic powder, respectively. Body weight and feed intake were measured weekly and used to calculate of the performance parameters. The results showed that at 21 to 49d and whole experiment period, birds fed antibiotic and 0.2 percent garlic powder had better daily weight gain and feed conversion ratio. The length and width of the villus in the birds fed 0.2% garlic powder was higher than the control group. The greatest and least number of lactobacillus and coliform was observed in synbiotic and antibiotic treatment, respectively.
Shima Hajipour dehbalaei; Mohsen Afsharmanesh; Masoud Sami; Hojatollah Khabazzadeh
Abstract
This experiment was conducted to investigate the effect of thyme essential oil and powder in comparison to antibiotic on performance of meat type quails, in a completely randomized design with 6 treatments, 4 replicate. The dietary treatments consisted of the basal diet without any added compounds (control), ...
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This experiment was conducted to investigate the effect of thyme essential oil and powder in comparison to antibiotic on performance of meat type quails, in a completely randomized design with 6 treatments, 4 replicate. The dietary treatments consisted of the basal diet without any added compounds (control), 100mg virginiamycin/kg, 0.1 or 0.2% thyme powder and 100 or 200 mg thyme essential oil/kg. The measurement parameters included performance, meat quality, morphology and microbiology of intestine. Supplementing 0.1% powder thyme and virginiamycin increased body weight gain of quails at d 0 to 35. Thyme powder and essential oil caused reduction in thiobarbituric acid, Dripping Loss and Cooking Loss and increased water holding capacity. The highest counts of lactobacilli bacteria, belong to thyme treatment (except for 200 mg essential oil/kg) and the lowest of it has been seen in antibiotic ones and the lowest count of coliform bacteria belonged to antibiotic treatment. Maximum length and width of the villi and minimum depths of crypts was observed in thyme treatments (except for 200 mg essential oil/kg). In antibiotic treatment, crypt depth was significantly increased in addition to increase of length and width of the villi.
