Processed Canola Meal Effects on the Traits of Egg, Fertility, Cecal Microbial Population and Carcass of Broiler Breeder Hens

Abstract

The aim of the current research was to study the effect of canola meal processing methods on the traits of egg, fertility, cecal microbial population, and the carcass of broiler breeder hens. Canola meal was processed by fermentation and enzymatic hydrolysis methods, then was fed to the hens. Four hundred and fifty broiler breeder hens of Ross strain weighing 3300±150 g (40 weeks) were used for 12 weeks. A completely randomized design was used with 6 treatments (unprocessed, processed by Lactobacillus Plantarum, Bacillus Subtilis, Aspergillus Oryzae, Neurospora Sitophila, and Alcalase enzyme) and 5 replications. Fifteen hens were included in each pen. The data collected were analyzed using the LSmeans procedure of SAS software. The treatment effect was significant on the fertility hatchability (p<0.05). The highest fertility hatchability was observed in the processing method by Neurospora Sitophila fungi (85%). Experimental treatments had significant effects on the germs and pH of the caecum (p<0.05). The use of processing methods reduced the population of salmonella and coliforms and increased the population of lactobacillus in the caecum. Most of the population of salmonella, lactobacillus, and coliforms of the caecum was observed in the treatments of unprocessed, Bacillus Subtilis bacteria, and unprocessed, respectively. The effect of the experimental treatment had significant effect on abdominal fat (p<0.05). Processing methods of canola caused the reduction of abdominal fat. The highest decrease in abdominal fat was observed in the treatment that processed Aspergillus Oryzae fungi (1.89%). Processing of canola meal improved its digestibility and reduced its anti-nutritional factors.

Application of Saccharomyces cerevisiae isolated from industrial effluent for zinc biosorption and zinc-enriched SCP production for human and animal

“…In addition, single cell protein (SCP) is a general term referring to the protein produced by fungal, bacterial, and yeast biomass which is suitable for human consumption or as animal feeds. It could be utilized as an appropriate protein source to provide essential supplements, such as nitrogen and amino acids for human diets and livestock fodder (Dolatifard & Jafari, 2020;Sharif et al, 2020). The advantages and disadvantages of the SCP depend on the type of microorganisms used for Application of Saccharomyces cerevisiae isolated from industrial effluent for zinc biosorption and zinc-enriched SCP production for human and animal its production.…”