Delivery of dietary nitrate to sheep through lick-blocks for enteric methane abatement

Title
Delivery of dietary nitrate to sheep through lick-blocks for enteric methane abatement
Publication Date
2012
Author(s)
Li, Li
Malisang, Saowalux
Hegarty, Roger
Nolan, John V
( author )
OrcID: https://orcid.org/0000-0001-7949-950X
Email: jnolan@une.edu.au
UNE Id une-id:jnolan
Leng, Ronald
Editor
Editor(s): S Koonawootrittriron, T Suwanasopee, T Jaichansukkit, D Jattawa, K Boonyanuwat and P Skunmun
Type of document
Conference Publication
Language
en
Entity Type
Publication
Publisher
Animal Husbandry Association of Thailand (AHAT)
Place of publication
Bangkok, Thailand
UNE publication id
une:17641
Abstract
Three experiments were undertaken to assess the voluntary intake of lick-blocks containing calcium nitrate by sheep, and the impact on enteric methane production. The effect of calcium nitrate inclusion rate on voluntary intake of lick-blocks was quantified in experiment one. Individually penned Merino sheep (n = 8) adapted to a basal diet were also each offered a lick-block containing either urea (n = 4) or calcium nitrate (n = 4). The blocks were provided for 4 x 8 d periods, with the blocks being replaced at the start of each period with a block of higher nitrogen (N) content (0.78%, 1.41%,2.82%,4.23% N; periods 1 - 4). Block intake showed a N-source x N-level interaction (P < 0.05), such that, while intake of urea containing blocks increased as N content increased (25 to 76 g/d), intake of nitrate containing blocks decreased (81 to 21 g/d).
Link
Citation
Improving Smallholder and Industrial Livestock Production for Enhancing Food Security, Environment and Human Welfare: Proceedings - Full Papers of the 15th AAAP Animal Science Congress, p. 80-88
Start page
80
End page
88

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