Reassessing flavophospholipol effects on broiler performance

Abstract

-The objective of this study was to evaluate bird responses to flavophospholipol at higher doses than those recommended by the Brazilian legislation. A trial was conducted with 900 male broilers divided into five doses of flavophospholipol: 0, 2, 4, 8 and 16 mg/kg. The performance evaluation was conducted weekly until 42 days of age. The evaluated parameters were: weight gain, feed conversion corrected for mortality, feed intake and mortality. At the end of experimental period, birds supplemented with growth promoter differed from the negative control for weight gain and feed conversion in the period from 1 to 42 days. Body weight gain and feed conversion were significantly higher for birds fed 16 mg/kg of flavophospholipol, compared with treatment without the growth promoter in the period from 1 to 21 days. In the accumulated period from 22 to 42 days, all doses were different for the negative control for feed conversion and body weight gain. The performance improvement was maximized at the dosage of 10.1 mg/kg for feed conversion ratio and 10.9 mg/kg for body weight gain by regression analysis. Flavomycin can be used as a growth promoter to improve feed conversion ratio and body weight gain in broilers from 1 to 42 days of age.

Edible mushroom powder (Agaricus bisporus) and flavophospholipol improve performance and blood parameters of broilers

“…The results for flavophospholipol addition are similar to those reported by De Barros et al (2012), who also found improvements in body weight gains and feed conversion ratio. However, there are two main differences between their study and ours.…”

“…First, they found these benefits throughout the whole rearing period while we found improvements only from the third week of rearing onward. This difference can be explained by the different doses of antibiotic employed in both studies; in our work we used 5 mg/kg of the antibiotic while De Barros et al (2012) used 10 mg/kg of flavophospholipol.…”

“…The treatments consisted of five levels of EMP (0, 0.5, 1.0, 1.5, and 2.0 g/kg) and 0 or 5.0 mg/kg flavophospholipol (Teif Azmoon Pars, Co., Tehran, Iran). According to De Barros et al (2012), the best performance is obtained with 10 mg/kg flavophospholipol. Regarding mushroom powder, Giannenas et al (2011) reported positive results on turkey poults when it was added up to 20 g/kg feed.…”

“…The increase in bacterial antibiotic resistance could be directly linked to the abuse of antibiotic growth promoters (AGP) in livestock production (De Barros et al, 2012). This has resulted in banning their use in many countries, mainly within the European Union.…”

Extratos Herbais Como Melhorador De Desempenho Na Dieta Em Tilápias

“…O uso dos antibióticos não é restrito aos tratamentos terapêuticos mas também são utilizados em doses subterapêuticas para atuarem como promotores de crescimento podendo melhorar os resultados de desempenho dos peixes e, acabam justificando seu emprego (BARROS et al, 2012). Essa aplicação contínua e excessiva geram grandes preocupações para a população mundial, já que estes animais são destinados ao consumo humano, e existe a possibilidade destas bactérias e seus genes de resistências serem transferidas para a microbiota humana reduzindo a eficiência dos antimicrobianos (BEZERRA et al, 2017) e desencadeie a chamada resistência bacteriana (GARCIA-MIGURA et al, 2014).…”