Prediction of voluntary intake and enteric methane emission by dairy heifers in integrated systems

To compare the predictions of voluntary intake and enteric methane (CH4) emissions in integrated crop-livestock (ICL) and integrated crop-livestock-forestry (ICLF) systems, a 2 × 2 crossover trial was carried out with eight Girolando heifers divided into two groups according to their live weight (LW...

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Published in:Revista em agronegócio e meio ambiente 2023-11, Vol.16 (4), p.1-16
Main Authors: Salman, Ana Karina Dias, Silva, Francyelle Ruana Faria da, Porto, Marlos Oliveira, Cavali, Jucilene Braitenbach, Souza, Elaine Coimbra de, Carvalho, Giovanna Araújo de
Format: Article
Language:English
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Summary:To compare the predictions of voluntary intake and enteric methane (CH4) emissions in integrated crop-livestock (ICL) and integrated crop-livestock-forestry (ICLF) systems, a 2 × 2 crossover trial was carried out with eight Girolando heifers divided into two groups according to their live weight (LW) and age. The daily means of total dry matter intake (9.66 and 8.44 kg day-1) and total enteric CH4 emission (9.99 and 8.79 MJ day-1; and 186.68 and 164.30 g day-1) were similar between ICL and ICLF, respectively. The CH4 emission expressed per unit of crude protein intake (CPI) was lower (P
ISSN:2176-9168
2176-9168
DOI:10.17765/2176-9168.2023v16n4e10712