Restrictions on access to important components of poultry rations such as corn and soybean meal are among the biggest issues in the poultry feed industry. Quinoa with a very high nutritional value can be a good alternative. The present study aimed to investigate the effect of processed quinoa seeds on performance, small intestinal morphology, and blood parameters of Ross broiler chickens. The present experiment was performed with 5 treatments, 4 replications, and 15 chickens per pen in a completely randomized design. Hydrothermal, extrusion, and expansion methods were used to process quinoa seeds. Apart from the control treatment, 15% of quinoa seeds were included in the other treatments. The studied traits were recorded. The general linear model procedure in SAS software was used to compare the means of treatments. The effect of processing methods on body weight, feed conversion ratio, total protein, uric acid, and blood cholesterol, villi height, crypt villi depth, and length to depth ratio of cryogenic villi of jejunum were significant (P<0.01). Quinoa processing improved its nutritional properties. In general, extrusion and expansion processing methods were more effective than the hydrothermal method in improving the quality of quinoa.
The experiment was conducted to investigate the effects of different fat sources on growth performance of broiler chicks. Broiler chicks were raised from 0 to 50 days of age. Two hundred and forty broilers (Ross 308) were randomly assigned to one of four experimental diets. These were four replicates for each of the following diets: A) Soybean oil, B) Free fatty acids, C) Grease oil, and D) Poultry oil. The results showed that the highest body weight and daily weight gain in 8-15 d, 16-25 d, 26-39 d, 40-44 d, and 45-50 were obtained in broilers fed on soybean oil diets (P<0.05). In 0-50 day oil the feed intake and daily weight gain of broilers fed on soybean oil was higher than other fat sources (P<0.05). According to findings of recent study, the growth performance of broiler fed on poultry oil and grease oil was poor compare to other fat sources. The growth performance of broilers fed on free fatty acids diet was slightly better than grease oil and poultry oil sources. The soybean meal oil and poultry fat oil supplementation significantly increased and decreased carcass weight percentage, respectively (P<0.05). Antibody titer against Newcastle diseases and Influenza viruses were not affected by different fat sources (P>0.05).
Processing methods are used to increase the nutritional value of soybean. The purpose of this research was to study the effect of different processing methods of soybean on performance, carcass traits, and blood metabolites of Ross broiler chickens. A factorial experiment was used in the form of a completely random design using 600 male Ross 308 broiler chickens for 42 days (in 3 feeding phases: starter, grower, and finisher). The experimental factors included the 2 soybean varieties (Katol and Caspian) and 4 processing methods (unprocessed, extruded, thermal, and gamma radiation). Data were measured and analyzed with the Lsmeans procedure by SAS package. Processing methods had a significant effect on the feed conversion ratio (FCR) at the starter and finisher phase. Soybean varieties had a significant effect on the FCR at the whole phase. Interaction of processing methods and soybean variety had a significant effect on the FCR at the finisher and whole phase. Processing methods had a significant effect on the albumin. Soybean varieties, processing methods and interaction of them had a significant effect on the phosphorus. Interaction of processing methods and soybean varieties had a significant effect on the live weight, thigh, wings, pancreas weight, uric acid, and Alkaline phosphatase (ALP). Results showed that extruded and thermal methods are the most suitable for soybean processing.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.