Alternatives to the use of antimicrobial feed additives in nursery diets: A pilot study
نویسنده
چکیده
Materials and methods: Ninety-six crossbred pigs 17 to 20 days old were randomly assigned to six experimental diets. A nonmedicated basal diet was supplemented with carbadox (55.12 g per tonne), copper sulfate (192.40 g copper per tonne), zinc oxide (2712.68 g zinc per tonne), or the probiotic feed additive BioPlus2B (Chr Hansen Inc, Milwaukee, Wisconsin; 1.1 × 106 or 1.3 × 106 spores per gram of feed). Pigs were weighed weekly and feed consumption was monitored to assess performance. Rectal swabs were collected for isolation of enterococci to evaluate antimicrobial resistance. Isolates were screened for resistance to vancomycin, and the broth microdilution procedure was used to determine minimum inhibitory concentration breakpoints.
منابع مشابه
اثرات افزودنی های خوراکی بر شاخص های بیوشیمیایی و ایمونولوژیک خون و عملکرد بلدرچین های ژاپنی (Coturnix coturnix Japonica)
The purpose of this study was to compare effects of the different types of feed additives consumption including probiotics, prebiotics and synbiotics in Japanese quails. A total of 384 Japanese quail chicks were randomly assigned to 8 treatments with 4 replicates and 12 birds per replicate (cage). The experimental diets (treatments) were included: Basal diet without additive (control) and prote...
متن کاملThe Effect of Medicinal Plants as a Feed Additive in Ruminant Nutrition
Since the use of antibiotics in animal feeds has been banned, researches on alternative natural products that modulate ruminal fermentation have been intensified. Natural compounds such as plant extracts have been considered to be replaced antibiotics as safe and sustainable alternatives. Plant extracts especially essential oils and saponins have strong antimicrobial, antiparasitic, antiprotozo...
متن کاملThe importance of using microbial feed additives in breeding ornamental fish
In line with the growth of the aquaculture industry, the reproduction and cultivation of ornamental fish has developed significantly due to its high economic importance. One of the most important challenges in the aquaculture industry is the improvement of formulated diets to improve the growth efficiency, nutrition and immunity of fish. In recent years, many efforts have been made in connectio...
متن کاملPerspectives in the use of tannins as alternative to antimicrobial growth promoter factors in poultry
Antibiotics have been included in the formulation of feed for livestock production for more than 40 years as a strategy to improve feed conversion rates and to reduce costs. The use of antimicrobials as growth-promoting factors (AGP) in sub-therapeutic doses for long periods is particularly favorable for the selection of antimicrobial resistant microorganisms. In the last years, global concern ...
متن کاملThe Effects of Probiotic and Thyme Powder on Growth Performance, Carcass Traits and Blood Biochemical Parameters of Broilers with Normal and Crude Protein Reduced Diets
Extentet Abstract Introduction and Objective: Substances of microbial origin and medicinal plants, by improving the level of health and condition of the gastrointestinal tract, provide the basis for the optimal use of nutrients in diets, and by reducing the use of nutrients, while saving production, also prevent environmental pollution. Dietary protein sources are among the most expensive nutr...
متن کامل