Use of prebiotics and probiotics of bacterial and yeast origin for free-range broiler chickens

Abstract

This study aimed to evaluate the effects of probiotics and prebiotics of bacterial and yeast origin on the performance, development of the digestive system, carcass yield and meat quality of free-range broiler chickens. Five hundred and sixty male chicks of the strain ISA S757-N were reared from one to 84 days old. The birds were distributed in four treatments according to a completely randomized block design: T1 = Control, T2 = Probiotics and Prebiotics of bacterial origin, T3 = Probiotics and prebiotics of yeast origin, T4 = Probiotics and prebiotics of bacterial origin + probiotics and prebiotics of yeast origin. There were four repetitions with 35 birds per repetition, and the birds had access to a pasture area after 35 days of age. Characteristics evaluated were performance, development of the digestive system, carcass and parts yield, abdominal fat, breast meat physical measurements (length, width and height) and meat quality parameters (pH from breast and leg meat, cooking loss and shearing force from breast meat). Lower mortality (p<0.05) and higher weight gain from 64 to 77 and 64 to 84 days of age were seen in birds supplemented with probiotics and prebiotics of bacterial origin compared to the non-supplemented birds (control). There were significant differences (p<0.05) among treatments for carcass yield. Birds supplemented with both probiotics and prebiotics of microbial and yeast origin (T4) showed higher carcass yield than control birds. Supplementation with probiotics and prebiotics of bacterial origin (T2) or the supplementation of these together with those of yeast origin (T4) reduced mortality and increased the carcass yield in free-range broiler chickens

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

“…In previous studies conducted on poultry, it was reported that the use of Syn enhances growth performance (Vahdatpour et al, 2011;Min et al, 2016) and carcass yield (Pelícia et al, 2004). Sahin et al (2008) reported that the addition of Syn to broiler rations did not have any effect on total serum protein, albumin, and total cholesterol levels.…”

“…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).…”

“…The use of Syn in poultry production encourages a healthy gut via certain possible mechanisms, such as enhancing the immune system (Hamasalim, 2016), lowering pH, and increasing protective gut mucus (Nikpiran et al, 2014), creating an antimicrobial effect (Likotrafiti et al, 2016), increasing the digestibility of nutrients (Awad et al, 2008), and enhancing nutrition performance (Elfaki and Mukhtar, 2015;Pelícia et al, 2004). In previous studies conducted on poultry, it was reported that the use of Syn enhances growth performance (Vahdatpour et al, 2011;Min et al, 2016) and carcass yield (Pelícia et al, 2004).…”

Assessment of Gastrointestinal Microflora in Pasture Raised Chickens Fed Two Commercial Prebiotics

“…The purpose of this study was to evaluate the microbial population responses in slow growing (naked neck) chickens raised on pasture that were supplemented with one of two commercial prebiotics obtained from yeast cell walls including beta-D-glucan and MOS. Beta-D-glucan polysaccharides are composed of D-glucose monomers joined by glycosidic bonds and MOS have been used as nutritional additives to preserve gut health since they were initially introduced in the late 1980s [15,18,31]. It has been reported that the mannose sugar site in MOS can bind to Salmonella fimbriae and inhibit Salmonella colonization in the broiler intestinal cells and reduced levels of E. coli and Clostridium perfringens [1,15,31,32].…”

“…With respect to pasture raised chickens, the birds are generally grown outside on fresh grass, air and sunlight without antibiotic growth promoters, while prebiotics, probiotics and vaccines are allowed [16]. Several reports have evaluated the effects of pasture raised chicken growth performance and meat quality by not only chicken genotypes (fast-, medium-and slow-growing) but also for examining responses to prebiotics supplement [17][18][19][20]. Most studies have been focused on the bird growth performance and carcass yield [21], while the impacts of prebiotics on gut microflora in these chicken production systems with prebiotics have not been fully explored.…”