Effects of dietary probiotic supplementation on ileal digestibility of nutrients and growth performance in 1‐ to 42‐day‐old broilers

Abstract

This study was conducted to determine the effects of dietary probiotic supplementation on the ileal digestibilities of nutrients and growth performance in broilers. Two thousand, eight hundred and eighty male broiler chickens at 1 day of age were randomly allotted to eight treatment groups and fed for 6 weeks the maize-soybean meal-based diets containing 0, 0.2, 0.4 or 0.6% AgiPro A100 (a probiotic) and 0 or 6 ppm flavomycin (an antibiotic). This well-established antibiotic was used as a positive control for the efficacy of AgiPro A100. Dietary supplementation with either the probiotic or the antibiotic alone did not affect (P > 0.05) feed intake or average daily gain (ADG) of broilers between days 1 and 42 of life. However, there was a significant antibiotic × probiotic interaction effect (P < 0.05) in increasing ADG during the entire experimental period. Notably, dietary supplementation with the probiotic or the antibiotic consistently improved (P < 0.05) the ileal digestibilities of crude protein and most amino acids in 21-and 42-day-old chickens. Supplementing the probiotic to broiler diets also improved (P < 0.05) the ileal digestibilities of dry matter, energy, calcium and phosphate in the birds. Collectively, these results indicated that AgiPro A100 is an effective alternative to flavomycin in chicken production.

Effect ofBacillus SubtilisSpore (GalliPro®) Nutrients Equivalency Value on Broiler Chicken Performance

“…However, BW of birds that received NC diet was lower than MT and PC. Our results are in agreement with those of Li et al (2008). On the contrary, the results of Kehlet et al (2014) showed that GalliPro ® can significantly improve live weight in broilers.…”

“…Amerah et al (2013) reported that probiotic supplementation reduced FI and improved FCR with no effect on weight gain throughout the trial, indicating that the probiotic indeed exerted some beneficial effect on broilers. The results of Li et al (2008) demonstrated that supplementing the broiler diet with probiotic, improved the ileal digestibilities of CP, most amino acids, dry matter, energy, calcium and phosphate in the birds. The improved performance of chickens and turkeys fed probiotics can be correlated with microstructures in the intestine where villus height and goblet cell numbers were increased, and crypt depth was decreased (Edens, 2003).…”

“…Their results surprisingly demonstrated that probiotics increased the feeding frequency and period and decreased distress call and aggressive behaviours in turkey (Naglaa, 2013). Several studies reported that dietary probiotic supplementation enhanced the ileal digestibilities of some nutrient like crude protein (CP) and most amino acids (Apata, 2008;Li et al, 2008). The key factors that affected nutrient digestibility are the activities of digestive enzymes, such as α-amylase, proteases and peptidases, in addition to the intestinal microflora and the intestinal absorption of the digestion products (Li et al, 2008).…”

“…Several studies reported that dietary probiotic supplementation enhanced the ileal digestibilities of some nutrient like crude protein (CP) and most amino acids (Apata, 2008;Li et al, 2008). The key factors that affected nutrient digestibility are the activities of digestive enzymes, such as α-amylase, proteases and peptidases, in addition to the intestinal microflora and the intestinal absorption of the digestion products (Li et al, 2008). The study of Collington et al (1990) indicated that addition of either the probiotic or antibiotic in pigs' diet had a significant effect on the development of sucrase, lactase and tripeptidase activities before weaning.…”

Effects of dietary addition of synbiotic on the performance, carcass traits, and serum parameters of Japanese quails

“…Probiotics are alternative living biological agents for antibiotics that suppress pathogen microorganisms with bacteriocin secretion, decrease the intestine pH (Gillor et al, 2008), and improve microbial balance (Fuller, 1989), positively affecting the digestive system. It has been reported in the literature that the use of preprobiotics in poultry improves the intestinal flora (Gibson and Roberfroid, 1995), strengthens the immune system (Hong et al, 2005), increases the digestibility of nutrients (Li et al, 2008a;Yasar and Akıncı, 2014), and enhances growth performance (Bolacali and Irak, 2017;Pelícia et al, 2004;Yasar and Akıncı, 2014).…”