Effect of technical cashew nut shell liquid on rumen methane emission and lactation performance of dairy cows

Journal of Dairy Science
A F BrancoA N Hristov

Abstract

Technical-grade cashew nut shell liquid (TCNSL) is a by-product of the cashew nut industry in tropical countries, and is known to exhibit a wide range of biological activities, including inhibitory effect against gram-positive bacteria. This study was conducted to investigate the effects of TCNSL (73.3% cardanol, 16.4% cardol, and 3.0% methylcardol) on rumen methane emission, nutrient digestibility, dry matter intake, and milk yield and composition in dairy cows. Eight multiparous Holstein cows were used in a crossover design trial with two 21-d experimental periods. The diet was based on corn silage and alfalfa haylage and was formulated to meet or exceed the energy and metabolizable protein requirements of the cows. Treatments were control (no TCNSL supplementation) or 30 g/cow per day of TCNSL. Rumen carbon dioxide emission was not affected by TCNSL. Treatment had no effect on methane emission (542 vs. 511±35.3 g/cow per day, respectively) and methane emission intensity (15.0 vs. 13.9±0.58 g/kg of energy-corrected milk, respectively) and tended to decrease methane emission per kilogram of dry matter intake (20.2 vs. 18.6±1.04 g/kg, respectively). Dry matter intake (average 26.9±1.00 kg/d), milk yield (40.0±1.73 kg/d), and mi...Continue Reading

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Citations

Sep 4, 2017·Journal of Dairy Science·J R R DóreaL E Armentano
Sep 6, 2018·Animal Science Journal = Nihon Chikusan Gakkaihō·Sungchhang KangYasuo Kobayashi
Jun 12, 2020·Animals : an Open Access Journal From MDPI·Yiguang ZhaoBenhai Xiong
Dec 27, 2016·Journal of Animal Science and Biotechnology·Yasuo KobayashiSatoshi Koike
Aug 6, 2021·Animal Science Journal = Nihon Chikusan Gakkaihō·Makimi WakaiYasuo Kobayashi

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