Abstract
Forage based dairy cattle feeding contributes to methane emissions that lead to global warming. Aspergillus oryzae is widely used in ruminant nutrition because of its buffering function in the rumen. Psidium guajava leaves are antimethanogenic in action. Hence a preliminary screening of supplementation of different levels of Aspergillus oryzae and Psidium guajava leaves extract each at 0.5%, 0.25%, and 0.125% respectively in the total mixed ration for crossbred dairy heifer calves was studied using in vitro gas production technique to estimate the metabolizable energy, digestible organic matter, methane production and in vitro degradable nitrogen. The results indicated that the feed additives supplemented groups had no adverse effect on in vitro rumen fermentation parameters and showed a significant (P<0.001) reduction in percent methane production compared to the control group. The research concluded that the synergistic supplementation of Aspergillus oryzae and Psidium guajava each at a specific level in the basal diet gave the best performance in terms of optimum availability of in vitro rumen degradable nitrogen and reduced rumen methanogenesis for better growth performance in crossbred dairy heifer calves.
Presenters
Neenu OusephStudent, M.V.Sc, Kerala Veterinary and Animal Science University, Kerala, India Dr. Surej Joseph Bunglavan
Assistant Professor, Animal Nutrition, College of Veterinary & Animal Sciences, Mannuthy, KVASU Thrissur Kerala India, Kerala, India
Details
Presentation Type
Paper Presentation in a Themed Session
Theme
Assessing Impacts in Diverse Ecosystems
KEYWORDS
DAIRY CALVES, METHANE EMISSION, PROBIOTIC-HERBAL EXTRACT MIXTURE, GROWTH
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