Hossein Mohebodini; amin ashayerizadeh; vahid jazi
Volume 23, Issue 1 , March 2021, , Pages 83-95
Abstract
The effects of feeding fermented cottonseed meal on performance, egg quality characteristics, gastrointestinal microbial population, and blood serum parameters were studied in a completely randomized design with nine treatments, six replicates, and 12 birds per replication using 648 Hy-Line W-36 laying ...
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The effects of feeding fermented cottonseed meal on performance, egg quality characteristics, gastrointestinal microbial population, and blood serum parameters were studied in a completely randomized design with nine treatments, six replicates, and 12 birds per replication using 648 Hy-Line W-36 laying hens. Raw cottonseed meal was fermented with a liquid mixed culture containing Lactobacillus plantarum, Bacillus subtilis, and Saccharomyces cerevisiae with a ratio of one to 1.2. The experimental treatments included replacing 7.5, 15, 22.5, and 30 percent of the raw or fermented cottonseed meal with soybean meal in the diet. After seven days of fermentation, free gossypol content of cottonseed meal was reduced from 985 to 107 mg/kg (P<0.05). The use of different levels of fermented cottonseed meal in the diet increased egg production percentage and egg mass and decreased feed conversion ratio compared to raw cottonseed meal (P <0.05). The eggshell strength in hens fed diets containing fermented cottonseed meal was higher than control birds and chickens receiving diets containing raw cottonseed (P <0.05). Feeding the diets containing different levels of fermented cottonseed meal significantly increased lactic acid bacteria population in crop and cecal of laying hens (P <0.05). Blood cholesterol concentration was lower in birds receiving diets containing fermented cottonseed meal than in other birds (P <0.05). The results of this research showed that replacing fermented cotton meal up to 30% with soybean meal in the diet of laying hens improves the parameters of eggshell quality, microbial flora in the gastrointestinal tract, and blood cholesterol of laying hens without negatively affecting performance.
vahid Jazi; Fathollah Boldaji; Behrouz Dastar; Seyed Reza Hashemi; Amin Ashayerizadeh
Volume 18, Issue 2 , June 2016, , Pages 311-321
Abstract
The effect of feeding fermented cottonseed meal on performance, carcass characteristics and blood serum lipid profile was studied in a completely randomized design with five treatments, five replicates and 12 birds per replication using 300 male Ross 308 broiler chicks. Raw cottonseed meal was fermented ...
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The effect of feeding fermented cottonseed meal on performance, carcass characteristics and blood serum lipid profile was studied in a completely randomized design with five treatments, five replicates and 12 birds per replication using 300 male Ross 308 broiler chicks. Raw cottonseed meal was fermented with a liquid mixed culture containing Bacillus subtilis, Aspergillus niger and Aspergillus oryzae with a ratio of 1:1.2. After seven days of fermentation, free gossypol was reduced from 584.33 to 68 mg/kg. The experimental treatments included replacing 0, 10, and 20 percent of the raw or fermented cottonseed meal by the soybean meal in the diet. The use of fermented cottonseed meal in the diet improved weight gain and feed conversion ratio of broilers compared to the raw cottonseed meal (P<0.05). At 21 and 42 d, weight gain and feed conversion ratio of the birds fed diets containing 10 and 20 percent of fermented cottonseed meal did not have a significant difference with the birds fed by the control diet. Abdominal fat was lower in birds fed diets containing fermented cottonseed meal compared with the others (P<0.05). Serum concentrations of cholesterol and triglyceride were significantly lower for the birds fed by diets containing fermented cottonseed meal, compared with the other groups (P<0.05). Based on the results, the use of fermented cottonseed meal improves the performance and health of broiler chickens compared to the raw cottonseed meal.