Abstract
The goal of this study was to investigate the effects of Lactobacillus plantarum (L. plantarum) supplementation on the growth performance, nutrient digestibility, gas emission, excreta microbiota, and meat quality in broilers. A total of two hundred eighty-eight, one-day-old Ross-308 chicks (mixed sex) were randomly allocated to one of two treatments with eight replicated cages (18 chicks per cage). For a period of 35 days, control treatment chicks were fed commercial corn-soybean meal-based (CON) mash form diet, whereas, LP (Lactobacillus plantarum) - chicks were fed CON with 0.10% L. plantarum supplement. The dietary inclusion of 0.10% L. Plantarum supplementation has a trend to increase the body weight gain (BWG) of broilers at day 7(p=0.079) and significantly increased at day 21 (p=0.011) and the overall trial period (p=0.037) compared to the CON diet. In addition, 0.10% L. plantarum supplementation to basal diet significantly decreased H2S (p=0.046) concentration. Also, it has significantly increased the excreta Lactobacillus population (p=0.041) and reduced the E. coli count (p=0.054) compared to the CON diet. However, throughout the trial there were no significant differences observed on nutrient digestibility of dry matter, nitrogen, and gross energy, as well as meat quality traits in broilers, fed 0.10% L. plantarum diet. In summary, the inclusion of L. plantarum supplementation has a beneficial effect on growth performance, excreta microbiota, and gas emission. From this, we conclude that 0.10% of L. plantarum could be a potential feed additive to enhance poultry production.
Highlights
Poultry production has grown rapidly and becomes a competitive industry all over the world
Ramarao et al (2004) reported that the body weight gain of broilers was not influenced by dietary probiotic supplementation, which opposed to the findings of our experiment
Peng and co-authors report that the dietary inclusion of L. plantarum supplementation has improved the feed conversion ratio of broilers, in this study the broilers fed 0.10% L. plantarum supplement failed to improve FCR and the feed intake throughout the experimental period
Summary
Poultry production has grown rapidly and becomes a competitive industry all over the world. The growth of poultry production has a profound impact on the demand for nutritious feed ingredients. On a large-scale rearing farm, chickens are exposed to a variety of diseases that leads to stressful situations and severe economic losses. To tackle this situation, the use of antibiotic growth promoters (AGP) has been increased. In the recent years, the haphazard use of AGP has raised concerns due to anti-microbial resistance. In response to this apparent threat, South Korean government has banned the use of AGP in livestock feed since 2011 (Sampath et al, 2021a). One of the eco-friendly approaches to growth promotion involves the use of probiotics, which have been used in the livestock industry for decades (Smith, 2014)
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