The influence of strain of Holstein-Friesian cow and feeding system on greenhouse gas emissions from pastoral dairy farms

Journal of Dairy Science
D O'BrienM Wallace

Abstract

The purpose of this study was to model the effect of 3 divergent strains of Holstein-Friesian cows in 3 pasture-based feed systems on greenhouse gas (GHG) emissions. The 3 strains of Holstein-Friesian compared were high-production North American (HP), high-durability North American (HD), and New Zealand (NZ). The 3 feed systems were a high grass allowance system (MP, control); high stocking rate system (HS); and high concentrate supplementation system (HC). The MP system had an overall stocking rate of 2.47 cows/ha and received 325 kg of dry matter concentrate per cow in early lactation. The HS system had a similar concentrate input to the MP system, but had an overall stocking rate of 2.74 cows/ha. The HC system had a similar overall stocking rate to the MP system, but 1,445 kg of dry matter concentrate was offered per cow. A newly developed integrated economic-GHG farm model was used to evaluate the 9 milk production systems. The GHG model estimates on-farm (emissions arising within the farm's physical boundaries) and production system (incorporating all emissions associated with the production system up to the point milk leaves the farm gate) GHG emissions. Production system GHG emissions were always greater than on-farm emi...Continue Reading

Citations

Oct 4, 2012·Animal : an International Journal of Animal Bioscience·D O'BrienM Wallace
Mar 19, 2013·Global Change Biology·Jessica BellarbyPete Smith
Nov 22, 2013·Global Change Biology·Luis E MoraesErmias Kebreab
Aug 10, 2015·Journal of Dairy Science·D O'BrienL Shalloo
Apr 16, 2014·Journal of Dairy Science·M D MurphyJ Upton
Mar 22, 2015·Journal of Dairy Science·M M KelleherD P Berry
Mar 25, 2017·Animals : an Open Access Journal From MDPI·Gerhard FlachowskyKarl-Heinz Südekum
Jul 12, 2017·Animal : an International Journal of Animal Bioscience·P R AmerA R Cromie
Mar 12, 2018·Journal of Dairy Science·L HanrahanL Shalloo
May 12, 2019·Journal of Animal Science·Julia Adriana Calderón DíazEdgar G Manzanilla
Apr 23, 2015·Environmental Management·Kyleisha J FooteRussell G Death
Jan 24, 2021·The Science of the Total Environment·Ronaldo VibartFrancisco Salazar
Nov 17, 2020·Frontiers in Veterinary Science·Tibor VerdunaLuca Maria Battaglini
Jul 28, 2017·Journal of Environmental Management·P RiceN M Holden

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