Evaluation of the use of probiotic (Bacillus subtilis C-3102) as additive to improve performance in broiler chicken diets

Abstract

-The objective of this experiment was to evaluate the use of probiotic based upon Bacillus subtilis C-3102 (BS) in broiler diets containing or not conventional additive growth-promoter (AGP). A total of 1,824 one-day-old chicks of the Cobb-500 strain were used and distributed into 48 plots (1.50 × 2.00 m). A completely randomized design with four treatments and 12 repetitions was adopted. The treatments evaluated were: 1-Negative Control -AGP-free diet (NC); 2 -Positive Control, with AGP halquinol 30 mg/kg diet (PC); 3 -NC + BS (3x10 5 cfu/g diet); and 4 -PC + BS (3x10 5 cfu/g diet). The diets were on corn, soybean meal and meat and bone meal basis, formulated according to the nutrient allowances of the Strain Cobb Guide, following a feed program with three diets (starter, grower and finisher). At 21 and 42 days of age, feed intake, weight gain and feed conversion were evaluated, and carcass yield characteristics were determined at 42 days of age. Throughout the trial period (starter and total phases), better feed conversion was found for broilers fed diet with both additives (AGP and BS) combined. At the end of the experiment (1 to 42 days), the highest weight gain also occurred in broilers fed diets with a combination of the two additives. In present study, the use of BS or AGP alone in diets did not affect the performance of broilers. The carcass yield was not influenced by the use of the additives and beneficial effects of supplementation of BS and AGP combined in the diet on broiler performance were observed.

The effect of Bacillus subtilis and its delivery route on hatch and growth performance, blood biochemistry, immune status, gut morphology, and microbiota of broiler chickens

“…Additionaly, it has been speculated that a single time point delivery of Bacillus subtilis via the in ovo route might only guarantee a transient beneficial effects in the chicken gut ( Latorre et al., 2014 ; Bernardeau et al., 2017 ). Both Patterson and Burkholder (2003) and Nunes et al. (2012) have submitted that significant improvement in growth performance following probiotics supplementation is mostly feasible in evironmental or imunological challenged birds producing below their genetic potential.…”

Production Performance of Peking Ducks with Feeding of Fermented Yeast Culture Pineapple Peel (Saccharomyces cereviceae)

“…sebanyak 3 ml/kg dalam bahan dapat mempertahankan performa produksi broiler. Nunes et al (2012) menyatakan penggunaan probiotik dalam ransum mendapatkan hasil yang positif yaitu meningkatkan persentase karkas.…”

Pengaruh Pemberian Kulit Nanas (Ananas comosus L. Merr) Fermentasi terhadap Persentase Karkas dan Kolesterol Ayam Potong

“…Beberapa hasil penelitian membuktikan bahwa probiotik memberikan efek menguntungkan bagi inangnya. Berdasarkan penelitian yang telah dilakukan sebelumnya oleh Nunes et al (2012) penggunaan probiotik dalam ransum mendapatkan hasil yang positif yaitu meningkatkan persentase karkas. Sebagaimana hasil penelitian Afriani (2002) menunjukkan bahwa penambahan probiotik dalam ransum ayam broiler mampu menurunkan kadar kolesterol daging.…”