Idioma:

Modelling environmental impacts associated with the removal of productivity-enhancing technologies from Canadian feedlots: a case study

Boonstra, Emily ; Aboagye, Isaac A. ; McAllister, Tim A. ; Legesse, Getahun ; Mengistu, Genet F. ; Fulawka, Deanne L. ; Cordeiro, Marcos R.C. ; Ribeiro, Gabriel O. ; McGeough, Emma ; Ominski, Kim H.

Canadian journal of animal science, 2023-09, Vol.103 (3), p.249-261 [Periódico revisado por pares]

Ottawa: Canadian Science Publishing

Texto completo disponível

Citações Citado por

Enviar para

Título:
Modelling environmental impacts associated with the removal of productivity-enhancing technologies from Canadian feedlots: a case study
Autor: Boonstra, Emily ; Aboagye, Isaac A. ; McAllister, Tim A. ; Legesse, Getahun ; Mengistu, Genet F. ; Fulawka, Deanne L. ; Cordeiro, Marcos R.C. ; Ribeiro, Gabriel O. ; McGeough, Emma ; Ominski, Kim H.
Assuntos: Acetic acid ; Ammonia ; ammonia emissions ; Cattle ; Emissions ; Environment models ; Environmental impact ; Feedlots ; greenhouse gas emissions ; Greenhouse gases ; land use ; Productivity ; productivity-enhancing technologies ; Ractopamine hydrochloride ; Water use
É parte de: Canadian journal of animal science, 2023-09, Vol.103 (3), p.249-261
Descrição: Greenhouse gas (GHG) and ammonia (NH3) emissions, land and water use associated with feedlot cattle (n = 40 hd treatment−1 trial−1) treated with or without productivity-enhancing technologies were modelled for a multiyear study (n = 4). Heifers (H) were assigned to the following treatments: (1) implanted (HTBA); (2) provided with melengestrol acetate (HMGA); (3) nonimplanted control, weight-adjusted (CON_Adj) to achieve the same final carcass weight (CW) as 1 (HCON_AdjTBA); or (4) CON_Adj to achieve the CW as 2 (HCON_AdjMGA). Steers (S) were assigned as follows: (1) implanted (STBA); (2) implanted and provided with ractopamine hydrochloride (SRAC; conducted in the last 2 years); (3) CON_Adj to achieve the same CW as 1 (SCON_AdjTBA); or (4) CON_Adj to achieve the same CW as 2 (SCON_AdjRAC). The GHG and NH3 emissions from HTBA, HMGA, STBA, and SRAC were 3.8%, 3.0%, 10.1%, and 8.5% lower and 4.3%, 2.9%, 7.4%, and 7.6% lower, respectively, than the respective control cattle. The land required to produce feed was also reduced by 6.6%, 4.8%, 9.9%, and 10.9%, while water use was reduced by 6.4%, 4.8%, 10.1%, and 11.1% for HTBA, HMGA, STBA, and SRAC, respectively. This modelling study clearly demonstrates that conventional beef production systems have a lower environmental footprint than nonconventional systems.
Editor: Ottawa: Canadian Science Publishing
Idioma: Inglês

Voltar para lista de resultados

Anterior Resultado 8 Avançar Ir para próxima página

Realização: Logos de Redes Sociais:

Modelling environmental impacts associated with the removal of productivity-enhancing technologies from Canadian feedlots: a case study

Boonstra, Emily ; Aboagye, Isaac A. ; McAllister, Tim A. ; Legesse, Getahun ; Mengistu, Genet F. ; Fulawka, Deanne L. ; Cordeiro, Marcos R.C. ; Ribeiro, Gabriel O. ; McGeough, Emma ; Ominski, Kim H.

Ottawa: Canadian Science Publishing

Buscando em bases de dados remotas. Favor aguardar.