Evaluation of In Vitro Nutrient Digestibility, Fermentation Characteristics and Methane Production of Agro-industrial Byproducts-based Complete Feed Block Treated with Mixed Microbes

Abstract

L ivestock production in developing countries largely depends on fibrous feeds, mainly crop residues and low quality pasture that are deficient in nitrogen, minerals and vitamins.The utilization of agricultural byproducts for increasing ruminants production has been received greater research attention within the past few decade because of the higher quantities of those byproducts. Poor palatability and low bulk density apart from low nutritive value are restricting the utilization of the agricultural byproducts as animal feeds. During these scarcity periods, there is need for easily available feed that can meet nutritional requirements at low cost and is easy to transport. Nutritive value of poor quality and bulky roughages can be improved by densified complete feed block (Salem and Nefzaoui, 2003). Complete feed block is comprised of forage, concentrate and other supplementary nutrients in desired proportion capable to fulfill nutrient requirements of animals.The feeding of complete feed block stabilises rumen fermentation, minimises fermentation loss and ensures better ammonia utilisation (Prasad et al., 2001). Moreover, this technology offers a means to increase milk production, decrease in environmental pollutants, increase in income of farmers, decrease in labour requirement and

Addition of cellulolytic bacteria in complete feed block based on agro-industrial by-products for Kacang goats

“…Then they were ground and passed through a 1-mm sieve using a Wiley mill. The L. plantarum was isolated from Pennisetum purpureophoides (Santoso et al, 2017;Santoso et al 2018). It was cultivated in MRS broth at 30 °C for 48 hours.…”

“…It was cultivated in MRS broth at 30 °C for 48 hours. In the meantime, S. cerevisiae was cultivated from malt extract broth at 30 °C for 48 hours (Santoso et al, 2017;Santoso et al, 2018). Cellulolytic bacteria P. aeruginosa and A. baumannii were isolated from the rice straw and the palm oil seed wastes, and cultured with carboxymethyl cellulose.…”

“…Santoso et al (2016) added Lactobacillus plantarum, Saccharomyces cerevisiae, A. baumannii and P. aeruginosa to the concentrate and observed enhanced fermentation and in vitro nutrient digestibility. Moreover, Santoso et al (2018) concluded that the additions of LAB, yeast, and cellulolytic bacteria to CFB altered in vitro patterns of ruminal fermentation by increasing the concentrations of ammonia nitrogen (NH 3 -N) and total VFAs and reducing the production of methane. This study was conducted to evaluate the digestibility of nutrients, characteristics of rumen fermentation and the utilization of nitrogen in Kacang goats fed agro-industrial by-product-based CFBs treated with cellulolytic bacteria.…”