SOMATIC CELL COUNT (SCC) AND PHYSICOCHEMICAL AND MICROBIOLOGICAL PATTERNS OF TYPE C MILK FROMTHE AGRESTE REGION, OF PERNAMBUCO STATE, BRAZIL

Lima, M. da C.G. de; Sena, M.J. de; Mota, R.A.; Mendes, E.S.; Almeida, C.C. de; Silva, R.P.P.E

doi:10.1590/1808-1657v73p0892006

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Artigo Científico • Arq. Inst. Biol. 73 (1) • Jan-Mar 2006 • https://doi.org/10.1590/1808-1657v73p0892006 copy

SOMATIC CELL COUNT (SCC) AND PHYSICOCHEMICAL AND MICROBIOLOGICAL PATTERNS OF TYPE C MILK FROMTHE AGRESTE REGION, OF PERNAMBUCO STATE, BRAZIL

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

This study was designed to evaluate the effects of somatic cell count (SCC) on milk quality from 13 dairy farms according to federal regulations of Ministério da Agricultura, Pecuária e Abastecimento (Agriculture Ministry of Brazil). Three hundred and one samples of type C milk were collected by hand and by milking machine. The samples were tested for physicochemical, cytological (SCC) and aspects. The results showed SCC ranging from 400,000 to 1,000,000 cells/mL; acidity varied from of 19.03 to 19.40ºD; total fat (3.34% to 3.56%); total solids (12.04% to 11.89%); solids not fat (8.53% to 8.17%); lactose (4.43% to a 4.48%); protein (3.06% to 3.12%) and the bacterial count (1.8 x 10⁹ to 4.0 x 10⁹mL). According to federal regulations no differences in physicochemical and cytological (SCC) patterns of milk were found in these samples, but a continuous education program must be installed in this area to provide milk quality.

KEY WORDS
Somatics cells count; milk; cow

CCS (céls./mL x 1000)	Acidez (^oD)	Gordura (%)	EST (%)	ESD (%)	Lactose (%)	Proteína (%)
< 400	19,03^a	3,34^a	12,04^a	8,54^a	4,44^a	3,08^a
401 a 750	19,10^a	3,56^a	12,12^a	8,53^a	4,43^a	3,12^a
751 a 1.000	19,40^a	3,36^a	11,89^a	8,17^a	4,48^a	3,06^a

Análises	Tipo de ordenha
	Manual	Mecânica^* * Ordenha mecanizada tipo balde ao pé.
CCS (céls./mL)^ CCS = Contagem de células somáticas.	373.000^b	530.000^a
Enumeração de	3,1 x 10^6a	3,3x10^5b
coliformes (NMP/mL)
CBT (UFC/mL)^* ***** CBT = Contagem bateriana total.	3,2 x 10^8a	1,6 x 10^7b
TRAM (minutos)^** ****** TRAM = Tempo de reação do azul de metileno.	180^b	354^a
Acidez (ºD)	19^a	19^a
Proteína (%)	3,10^a	3,04^a
Gordura (%)	3,54^a	3,21^a
Lactose (%)	4,47^a	4,33^a
ESD(%)^*** *** ESD = Extrato seco desengordurado.	8,29^a	8,29^a
EST(%)^**** **** EST = Estrato seco total.	12,14^a	11,53^a

TRAM^* * TRAM = Teste de Redutase utilizando o corante azul de metileno.	Propriedades (%)	^ CBT = Contagem bacteriana total. CBT(UFC/mL)
< 3 horas	38,5	2,2 x 10^9a
3 a 5 horas	30,8	1,8 x 10^8b
> 5 horas	30,8	2,3 x 10^9a

CCS	TRAM	CBT	NMP
(cél./mL x 1000)	(Min)	(UFC/mL)	(UFC/mL)
< 400	237^a	1,8 x 10^9a	3,7 x 10^6b
401 a 750	153^b	1,8 x 10^9a	3,2 x 10^6b
751 a 1.000	218^a	4,0 x 10^9a	4,7 x 10^6b

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[1] Médias seguidas por letras minúsculas na mesma coluna diferentes indicam diferença significativa (p < 0,05)