Evaluation of optimum inclusion levels of biostrong® 510 15% as a replacement for antibiotic growth promoters in broiler chicken production under field conditions in Nigeria

Abstract

An experiment was conducted to evaluate the efficacy of Biostrong® 510 15% (BSG) inbroiler chickens diet. It was included at 0 g, 75 g, 100 g and 125 g/100 Kg diet, for T1-T4respectively while T5 had Oxytetracycline. Data was collected on growth performanceindices, haematological parameters, liver function indices, kidney function, blood mineralprofile, immune response, antioxidant capacity, villi morphometrics, lipid profile, ileum andceacum microbial contents, carcass quality parameters, and tibia bone quality indices. Alldata collected were subjected to analysis of variance and significant differences amongtreatment means were compared using the Tukey test of significance. Growth erformance showed that broilers fed diet containing 100g BSG had optimum performance among other levels. Haematological and liver function indices were not significantly (P>0.05) different. Birds fed BSG showed decreased cholesterol, triglycerides and high-density lipoprotein compared to the control treatment. Birds fed levels of BSG and AGP had significantly higher bone weight, bone density, bone dry matter and bone ash as compared to birds on the control group. All carcass evaluation parameters were significantly (P<0.05) different among treatments except for dressed weight, breast and kidney. Levels of BSG in the diet significantly lowered the cost of production than AGPs of finisher broilers improved liver health, bone strength, villi characteristics, increased beneficial bacteria population and also prevent the colonization of the gut by pathogenic bacteria thus improving the health of the birds. Biostrong® 510 15%, can therefore effectively replace antibiotic growth promoters in broiler chicken production.

Comparative effects of medium‐chain fatty acids or phytobiotics‐based feed additives on performance, caecum microbiota, volatile fatty acid production and intestinal morphology of broilers

“…The current study aimed to explore the effects of four different commercial feed additives based on MCFAs and phytobiotics commonly used in broiler nutrition to enhance the growth performance and intestinal health of broilers. Although there are plenty of studies displaying the positive effects of the phytobiotics on the performance of chickens (Diaz-Sanchez et al, 2015;Kikusato et al, 2021;Weber et al, 2012;Zeng et al, 2015;Zhu et al, 2019), the addition of the three additives composed of thymol and trans-anethole blend (T3), ALK sanguinarine (T4) and a blend of EOs (thymol and eugenol) enriched with ALK piperine (T5) had no significant effect on all of the performance parameters studied in current study, which are in agreement with some other experiments reporting that the application of different types, concentrations or combinations of EOs, such as thymol, eugenol and trans-anethole, and ALKs such as sanguinarine and piperine did not affect the BW, BWG, FI and FCR results, and sometimes even makes it worse (Abudabos & Alyemni, 2013;Barreto et al, 2008;Onimisi et al, 2017). The response of the phytobiotics in birds to improve growth performance and feed efficiency is inconsistent, which has been imputed…”