Efficiency of Soybean Products in Broiler Chicken Nutrition

Abstract

The study aimed to determine the overall effect of replacing soybean meal completely with soybean expeller cake or extruded full-fat soybean in feed rations for broiler chickens on their carcass composition and meat quality. The experiment involved one hundred and twenty Ross 308 broiler chickens randomly allocated to three equinumerous groups (SBM, SEC, EFS). Each group was divided into five subgroups—each consisting of eight birds of both sexes (1:1). From Day 1 to Day 21 of life the birds were fed with loose starter rations, and from Day 22 to Day 42 they were fed grower rations based on a wheat meal, protein products and mineral and vitamin admixtures. The experimental factor was a protein raw material comprising: SBM group—soybean meal from GM (genetically modified) seeds, SEC—soybean expeller cake from n-GM seeds, and EFS—extruded full-fat soybean from n-GM seeds. The experimental diets were isocaloric and isonitrogenous. It was demonstrated that replacing soybean meal with SEC or EFS in feed rations for broiler chickens led to a significant (p < 0.05) weight gain on Day 42 of rearing by 4.57% and 2.88%, respectively. The chickens fed diets with EFS had worse (more than 4.14%) feed conversion rate (FCR) in comparison to the others (p < 0.05). Broiler chickens from the SBM and SEC groups showed a higher share of breast and leg muscles (by 4.74% and 7.54%) and a lower share of abdominal fat (by 31.1%) and skin with subcutaneous fat (by 18.8% and 13.4%) in comparison with birds from the EFS group (p < 0.05). The highest content of intramuscular fat with the best fatty acids profile was determined in the muscles of birds fed with diets containing EFS, while the muscles of chickens receiving SEC scored the highest. The results provide grounds for recommending SEC in broiler chicken nutrition as it allowed for obtaining the best production and slaughter results, whereas—from the point of view of the human diet—EFS should be recommended since it best modified the lipid fraction of muscles.

Effect of feeding Extruded-pressed Soybean Meal on Broiler chicken Performance and Economic Efficiency

“…Thus, indicated that addition of extruded pressed to diet of Ross308 broiler chicken did not have any adverse effect on growth performance and economic efficiency parameters. This is in agreement with that reported by (Janocha and Milczarek, 2022), who revealed that the best raising results were obtained when non-GM soybean expeller cake was completely substituted for GM soybean meals in broiler chicks.…”

“…When soybeans are processed with the Insta-Pro Express TM extruder/press system, the resulting extruded-pressed soybean meal typically has a higher dry matter content and lower moisture content than soybean meal that has undergone conventional processing. In this study, the addition of extruded-pressed soybean meal to feed formulations of Ross308 broiler chickens allowed a significant increase in the BW, BWG and RGR of chicken with no effect on FCR and EBI ; these results were in agreement with that reported by (Janocha and Milczarek, 2022)and by (Meyer and Bobeck, 2021) who concluded that birds provided diets containing Extrudedpressed soybean meal gained more body weight overall and during each performance period than birds fed diets containing solvent-extracted SBM (SBM 46%).Also, This was consistent with the information provided by (Zhang et al, 1993), who mentioned that the body weight gain increased due to the presence of extruded-pressed SBM in the diet. Powell et al, (2011) did not observe any appreciable differences in the FCR.…”

The Impact of Extruded-Expelled Soybean Meal on Carcass Traits and Intestinal Morphometry of Broiler Chickens

“…Jahanian and Rasouli (2016) reported that carcass features were not affected, abdominal fat increased, and breast muscle yield was reduced when dietary soybean meal was replaced with 86% extruded soybean meal. In contrast, Janocha and Milczarek (2022) revealed a more significant proportion of the breast and leg muscles in broilers fed either soybean meal or soybean expeller cake when compared with birds fed extruded full-fat soybeans.…”

Insects in Pet Food Industry—Hope or Threat?

“…There are countries in Europe that want to prohibit the use of genetically modified organisms (GMOs) in livestock nutrition altogether. An example is Poland, where this ban is planned to be introduced in 2024 [ 15 ].…”