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Avaliação da qualidade do leite de ovelha na Beira Baixa com base em contagem de células somáticas
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Authors
Abstract(s)
Este trabalho caracteriza o parâmetro Contagem de Células Somáticas(CCS) em leite
de ovinos da área geográfica do queijo de Castelo Branco DOP (Fundão, Castelo Branco,
Idanha-a-Nova, Vila Velha de Ródão, Covilhã e Belmonte).
Foram seleccionadas 5 queijarias na zona-alvo que processam leite de ovino de
explorações dos seis concelhos citados, às quais foi solicitada a colheita de amostras de leite do tanque da exploração.
As amostras foram processadas pelo método fluoro-opto-electrónico FOSSOMATIC
(Foss)250/360. As CCS obtidas foram registadas para posterior análise no software SPSS versão 15.0.
Os resultados obtidos revelam uma média de CCS de 551,11xl03 células/ml, valor considerado satisfatório de acordo com o referencial dos E. U. A. (limite máximo CCS 1,0 xl06 células/ml) e de países da União Europeia como a França, a Itália e a Espanha (limite máximo CCS 0,5 a 1,0 x 106células/ml).
Ao contrário de estudos anteriores, na nossa investigação não foi demonstrada uma
associação entre o tamanho do rebanho e a CCS.
Muito embora a média das CCS seja satisfatória queremos destacar a grande amplitude dos valores das CCS: de 15 a 5.762xl0(3) células/ml; o que reflecte um mosaico muito díspar do nível de educação sanitária dos produtores, dos objectivos das explorações/empresas, da qualidade das instalações e da sala de ordenha, do nível de
biossegurança das explorações, e mais especificamente, de profilaxia e terapêutica das
mastites. Esta constatação reforça a necessidade urgente de implementação de programas de
Boas Práticas de Higiene a nível da exploração, aliados à monitorização do estado sanitário
do úbere, tal como é proposto nos regulamentos comunitários respeitantes à higiene dos
alimentos.
ABSTRACT: This work was conducted to characterize the parameter Somatic Cell Count (SCC) in Beira Baixa milk sheep at the geographic area of Castelo Branco Protected Designation of Origin (PDO) Cheese: counties of Fundão, Castelo Branco, Idanha-a-Nova, Vila Velha de Ródão,Covilhã and Belmonte. Five cheese making facilities were selected in the target area, accounting for all of the six districts mentioned earlier. Bulk tank milk samples were collected at the farm. The samples were processed by the fluor-opto-electronic method FOSSOMATIC (Foss) 250/360 and the SCC was recorded for subsequent analysis with SPSS version 15.0. The results point to a SCC áverage of 551,11x10(3) cells/ml, an acceptable value according to the U.S.A. standard (maximum CCS acceptable 1,0x10(6) cells/ml) and European Union member countries such as France, Italy and Spain (maximum CCS acceptable0,5 to 1,0x10(6) cells/ml). Unlike other published studies, an association between herd size and SCC was not found. Although the average SCC is satisfactory, a broad spectrum of values was recorded: 15 to 5.762x10(3)cells/ml; which reflects a concerning heterogeneity of the farmers' animal health education, of the farm/enterprise goals, of the premises and milking parlor quality, of the biosecurity level of the farms, and in particular, of the mastitis treatment protocols and prophylaxis programs. This remark enforces the urgent need to implement Hygienic Good Practicing at farm level, along with monitoring routines of the mammary gland health status, as it is proposed by the communitarian regulations on food hygiene.
ABSTRACT: This work was conducted to characterize the parameter Somatic Cell Count (SCC) in Beira Baixa milk sheep at the geographic area of Castelo Branco Protected Designation of Origin (PDO) Cheese: counties of Fundão, Castelo Branco, Idanha-a-Nova, Vila Velha de Ródão,Covilhã and Belmonte. Five cheese making facilities were selected in the target area, accounting for all of the six districts mentioned earlier. Bulk tank milk samples were collected at the farm. The samples were processed by the fluor-opto-electronic method FOSSOMATIC (Foss) 250/360 and the SCC was recorded for subsequent analysis with SPSS version 15.0. The results point to a SCC áverage of 551,11x10(3) cells/ml, an acceptable value according to the U.S.A. standard (maximum CCS acceptable 1,0x10(6) cells/ml) and European Union member countries such as France, Italy and Spain (maximum CCS acceptable0,5 to 1,0x10(6) cells/ml). Unlike other published studies, an association between herd size and SCC was not found. Although the average SCC is satisfactory, a broad spectrum of values was recorded: 15 to 5.762x10(3)cells/ml; which reflects a concerning heterogeneity of the farmers' animal health education, of the farm/enterprise goals, of the premises and milking parlor quality, of the biosecurity level of the farms, and in particular, of the mastitis treatment protocols and prophylaxis programs. This remark enforces the urgent need to implement Hygienic Good Practicing at farm level, along with monitoring routines of the mammary gland health status, as it is proposed by the communitarian regulations on food hygiene.
Description
Dissertação de Mestrado em Saúde Pública Veterinária
Keywords
CCS Leite Ovelha Mamite Queijo Beira Baixa SCC Milk Sheep Mastitis Cheese
Pedagogical Context
Citation
Publisher
Universidade Técnica de Lisboa. Faculdade de Medicina Veterinária