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Estudo em duas explorações certificadas de bovinos de carne segundo as regras do Modo de Produção Biológico
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Abstract(s)
O Modo de Produção Biológico (MPB) é um sistema de gestão que combina as
melhores práticas produtivas, de forma a preservar os recursos naturais, a longo
prazo, o bem-estar animal e a preservação da biodiversidade, devido à
preocupação das gerações futuras relativas à obtenção de produtos e processos
naturais. O presente relatório ocorreu no ano de 2022, tendo como objetivo
principal a realização de um estudo em duas explorações certificadas de bovinos
de carne, segundo as regras do MPB. As duas explorações têm parcelas
contíguas, encontrando-se uma em MPB e a outra em conversão para MPB.
Foram realizadas análises de solo de cada uma das parcelas, verificando-se que
as parcelas de pastagens permanentes contíguas apresentaram menores
diferenças relativamente ao observado nas parcelas contíguas de prados
temporários. Foi possível ainda verificar que, ambas as explorações, ao contrário
da maioria dos solos em Portugal Continental, não apresentaram níveis de pH
ácidos. A nível das pastagens permanentes e prados temporários foi verificado
ainda que a relação Ca/Mg em ambas as explorações, se encontrava alta e muito
alta, o que não é o desejável, pois significa que existe carência de Mg a nível
das pastagens e forragens, prejudicando-as em termos qualitativos e
quantitativos, podendo ainda ser prejudicial aos animais. No que diz respeito ao
cumprimento dos requisitos da certificação, foi verificado, através da visita de
campo/controlo, que ambas as explorações cumpriam as regras do MPB e, quais
as diferenças de uma exploração em MPB para uma exploração em conversão.
Por último, foi realizado um inquérito a trinta produtores (quinze em MPB e
quinze em conversão) sobre o MPB de forma a entender o que os levou a
implementar este modo de produção. Todos os inquiridos responderam o
benefício financeiro como principal razão para aderirem a este modo de
produção.
The organic farm production (MPB) is a management system that combines the best production practices to preserve natural resources, in the long term, animal welfare and the biodiversity preservation, due to the concern of future generations regarding the obtaining natural products and processes. The present report took place in the year 2022, with the main objective of carrying out a study in two certified beef cattle farms, according to the MPB rules. The two farms have contiguous parcels, one under MPB and the other under conversion to MPB. Composite analyses of each of the plots were carried out and it was found that the contiguous permanent grassland plots showed less differences in relation to what was observed in the contiguous temporary grassland plots. It was also possible to verify that both farms, contrary to most soils in mainland Portugal, did not present acidic pH levels. At the level of permanent pasture and temporary meadows, it was also found that the Ca/Mg ratio in both farms was high and very high, which is not desirable, as it means that there is a lack of Mg at the level of pasture and forage, damaging them in qualitative and quantitative terms, and may also be harmful to the animals. Regarding compliance with the certification requirements, it was verified, through the field visit/control, that both farms complied with the rules of MPB and, what the differences are between a farm in MPB and a farm in conversion. Finally, a survey was carried out to thirty producers (fifteen in MPB and fifteen in conversion) about MPB in order to understand what led them to implement this production method. All respondents answered the financial benefit as the main reason for joining this production method.
The organic farm production (MPB) is a management system that combines the best production practices to preserve natural resources, in the long term, animal welfare and the biodiversity preservation, due to the concern of future generations regarding the obtaining natural products and processes. The present report took place in the year 2022, with the main objective of carrying out a study in two certified beef cattle farms, according to the MPB rules. The two farms have contiguous parcels, one under MPB and the other under conversion to MPB. Composite analyses of each of the plots were carried out and it was found that the contiguous permanent grassland plots showed less differences in relation to what was observed in the contiguous temporary grassland plots. It was also possible to verify that both farms, contrary to most soils in mainland Portugal, did not present acidic pH levels. At the level of permanent pasture and temporary meadows, it was also found that the Ca/Mg ratio in both farms was high and very high, which is not desirable, as it means that there is a lack of Mg at the level of pasture and forage, damaging them in qualitative and quantitative terms, and may also be harmful to the animals. Regarding compliance with the certification requirements, it was verified, through the field visit/control, that both farms complied with the rules of MPB and, what the differences are between a farm in MPB and a farm in conversion. Finally, a survey was carried out to thirty producers (fifteen in MPB and fifteen in conversion) about MPB in order to understand what led them to implement this production method. All respondents answered the financial benefit as the main reason for joining this production method.
Description
Keywords
Modo de Produção Biológico (MPB) Solo Certificação Organic Production Method (MPB) Soil Certification