Probiotics in Industrial Poultry Farming

Abstract

In the conditions of industrial production, the problem of growing poultry with increased resistance to various diseases is relevant because the birds are exposed to various stress conditions. Traditionally, disease prevention is carried out through the use of vaccines, chemical pharmaceuticals, and antibiotics. The global use of therapeutic drugs contributes to the emergence of resistant strains of microorganisms and a decrease in the effectiveness of treatment; some of them have an immunosuppressive effect. The article presents the results of research on the effect of the preparation "Lactobacillus plantarum, Enterococcus faecalis, and Propionibacterium freudenreichii ssp." on the immune status, growth rate, and safety of experimental stock in broiler chickens. Studies were carried out on 150 one-day-old Ross-308 broiler chicks that were divided into three groups of 50 birds. The control Group (G3) was fed a standard ration based on the phases of growth, while the experimental Groups (G1 and G2) were supplemented with probiotics at different doses in the feed. The experiment was designed to last for 41 days. In the 3 rd week, the average live weights of G1 and G2 broiler chickens exceeded those of G3 by 5.5 and 4.1%, respectively. In the 6 th week, G1 and G2 broiler chicks had average live weights that exceeded those of G3 by 7.7 and 7.4%, respectively. The survival rates of the flocks in G1 and G2 were 4 and 2% higher, respectively than in G3. The average titers for Newcastle Disease and infectious bronchitis viruses in G1 were 314.9 and 53.5% higher, respectively than in G3, while in G2 they were 3.7 and 21.8% lower, respectively. For infectious bursal disease, G1 and G2 exceeded the control group by 74.2 and 6.4%, respectively. The meat yield of G1 and G2 was higher at 17.2 and 9.1%, respectively, compared to G3. Probiotics have shown many beneficial properties, including the ability to improve immunity, gut structure, and gut barrier function in broilers. These factors can improve digestion and absorption, ultimately increasing the quality and safety of products.

Ameliorative avian gut environment and bird productivity through the application of safe antibiotics alternatives: a comprehensive review

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Effect of Mineral Feed Additives on the Rearing of Young Ducklings: An Experimental Study in Western Kazakhstan

“…Ducks often require less space and adapt better to different environments. Third, ducks, under certain conditions, are hardy birds and may be less susceptible to diseases, including bird flu (Bernacki et al 2006;Chen et al 2015;Smolovskaya et al 2023). This factor can lower veterinary costs and reduce the risk of more bird losses.…”

Effect of the Cresacin Feed Additive on the Digestibility of Nutrients, Productivity and Egg Quality in Egg Laying Quails

“…An important factor in improving any breed of poultry and increasing their productivity is their feeding (Dei, 2021;Tallentire et al, 2016). Numerous studies (Gayirbegov et al, 2017;Smolovskaya et al, 2023) and practices show that the productivity, growth, and development of poultry, including quails, are largely determined by feeding conditions. When feeding quails, it is of great importance to enrich their diets with various feed additives of Russian and foreign production (Yurina et al, 2021;Arif et al, 2022).…”