The cattle raising is mainly developed in pastures and secondary forest (named: acahuales) in Cam... more The cattle raising is mainly developed in pastures and secondary forest (named: acahuales) in Campeche, and recently silvopastoral systems have been also fostered in this region. These grazing systems were evaluated to determine their role to reduce greenhouse gas emissions (eGEI) in tropical livestock systems. The study was carried out using a “door to door” life-cycle assessment (LCA) of cow-calve (UPPc) and dual-purpose (UPPdp) units. The functional unit was one kilogram of live weight adjusted for protein content (kgPV-eq). The eGEI were not different among grazing systems due to their similarities in productivity and the origin of dry matter in diet. However, when eGEI of the UPPc and UPPdp were compared, these were different (P <0.01), due to productivity per hectare of UPPdp was greater than the UPPc. Something similar occurred for land use, where the UPPdp needed less area than the UPPc, since milk almost twofold the total functional unit production. In this study, produc...
Life-Cycle Assessment (LCA) was utilized to compare the potential for climate change, acidificati... more Life-Cycle Assessment (LCA) was utilized to compare the potential for climate change, acidification and human toxicity associated with the production of boneless beef sold to the consumer through two chains of production in Veracruz, Mexico. An intensive method based on feedlot finishing and highly technified transformation and marketing procedures was analyzed and compared to an extensive livestockfarming model up to the finishing period and adopting low technology transformation and marketing procedures. The potential impacts on every category studied were greater in the intensive chain. More methane from enteric fermentation was generated in the extensive chain due to lower quality feed compared to feedlot finishing, however the latter is associated with greater impact within the intensive chain because of production and processing of the feed raw material.
Proceedings of the British Society of Animal Science
Formulating the inventory of relevant commodities to assess the life cycle of goods or services (... more Formulating the inventory of relevant commodities to assess the life cycle of goods or services (LCI) is highly demanding on time and resources (Suh et al., 2004). Collected information is not always satisfactory to take account of all possible sources of environmental burdens (E-burdens) produced in the commodity supply chain. Several pre-assessment methods have been proposed to serve this function, although these have identified limitations; lack of previous experience and use of subjective cut off criteria are the most frequent weaknesses found (Suh, 2006). An objective pre-assessment method was developed as part of a life cycle analysis (LCA) for different pigmeat supply chain (PSC) scenarios.
The cattle raising is mainly developed in pastures and secondary forest (named: acahuales) in Cam... more The cattle raising is mainly developed in pastures and secondary forest (named: acahuales) in Campeche, and recently silvopastoral systems have been also fostered in this region. These grazing systems were evaluated to determine their role to reduce greenhouse gas emissions (eGEI) in tropical livestock systems. The study was carried out using a “door to door” life-cycle assessment (LCA) of cow-calve (UPPc) and dual-purpose (UPPdp) units. The functional unit was one kilogram of live weight adjusted for protein content (kgPV-eq). The eGEI were not different among grazing systems due to their similarities in productivity and the origin of dry matter in diet. However, when eGEI of the UPPc and UPPdp were compared, these were different (P <0.01), due to productivity per hectare of UPPdp was greater than the UPPc. Something similar occurred for land use, where the UPPdp needed less area than the UPPc, since milk almost twofold the total functional unit production. In this study, produc...
Life-Cycle Assessment (LCA) was utilized to compare the potential for climate change, acidificati... more Life-Cycle Assessment (LCA) was utilized to compare the potential for climate change, acidification and human toxicity associated with the production of boneless beef sold to the consumer through two chains of production in Veracruz, Mexico. An intensive method based on feedlot finishing and highly technified transformation and marketing procedures was analyzed and compared to an extensive livestockfarming model up to the finishing period and adopting low technology transformation and marketing procedures. The potential impacts on every category studied were greater in the intensive chain. More methane from enteric fermentation was generated in the extensive chain due to lower quality feed compared to feedlot finishing, however the latter is associated with greater impact within the intensive chain because of production and processing of the feed raw material.
Proceedings of the British Society of Animal Science
Formulating the inventory of relevant commodities to assess the life cycle of goods or services (... more Formulating the inventory of relevant commodities to assess the life cycle of goods or services (LCI) is highly demanding on time and resources (Suh et al., 2004). Collected information is not always satisfactory to take account of all possible sources of environmental burdens (E-burdens) produced in the commodity supply chain. Several pre-assessment methods have been proposed to serve this function, although these have identified limitations; lack of previous experience and use of subjective cut off criteria are the most frequent weaknesses found (Suh, 2006). An objective pre-assessment method was developed as part of a life cycle analysis (LCA) for different pigmeat supply chain (PSC) scenarios.
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