Data/hora: 06/06/2024 01:47:03

Biblioteca(s): 	Embrapa Agricultura Digital; Embrapa Rondônia.	
Data corrente: 	15/09/2020	
Data da última atualização: 	15/09/2020	
Autoria: 	DIAS, J. A.; PACHECO, I. F.; GREGO, C. R.; FARIA, G. V.; CRUZ, P. G. da.	
Afiliação: 	JULIANA ALVES DIAS, CPAF-RO; IVANETE FRANCESCHINI PACHECO, UNIR; CELIA REGINA GREGO, CNPTIA; GUILHERME VIEIRA FARIA, CPAF-RO; PEDRO GOMES DA CRUZ, CPAF-RO.	
Título: 	Spatial characterization of hygienic-sanitary indicators of refrigerated raw milk from three microregions of the Rondônia state.	
Ano de publicação: 	2020	
Fonte/Imprenta: 	Semina: Ciências Agrárias, v. 41, n. 5, p. 2195-2208, 2020.	
DOI: 	http://dx.doi.org/10.5433/1679-0359.2020v41n5supl1p2195	
Idioma: 	Inglês	
Notas: 	Suplemento 1.	
Conteúdo: 	Abstract. Bacterial count (SPC) and somatic cell count (SCC) are considered universal indicators of milk quality. The objective of this study was to identify SPC and SCC clusters in milk samples from three microregions of the state of Rondônia and to evaluate the influence of year period and tank type on these indicators. A total of 566 milk cooling tanks linked to dairy industries with the Federal Inspection Service located in the Ariquemes, Ji-Paraná and Porto Velho microregions were evaluated. The SPC and SCC results of the tank samples and the geographical coordinates were obtained from the dairy industry database; the study focused on the results of official analyses carried out by the Laboratories of Milk Quality accredited to the Ministry of Agriculture, Livestock and Food Supply (MAPA) in 2015, constituting a pool of 6,792 data subsets from 2,209 farmers. To elaborate the spatial distribution maps of the quality indicators, the ArcView 3.1® software was used. Spatial dependence was evaluated by geostatistics, using the ordinary kriging method for data interpolation. Variance analysis (ANOVA) was performed using the SAS 9.0 GLM procedure on the logarithmic transformation of SCC and SPC, using as variables the type of tank (individual and collective) and season (dry and rainy). The frequency of milk quality adjustments to the limits defined in the legislation has shown that SPC is a major challenge for the state?s production chain. There were no significant differences in this frequency for SCC and SPC, neither between the microregions studied, nor between the dry and rainy season (p > 0.05). The analysis of variance considered the period of year and type of cooling tank and showed higher SPC and SCC in the rainy season (p < 0.05); SCC and SPC were higher in collective tanks used by more than 5 farmers (p < 0.05). Spatial dependence was weak for SCC (DD = 22.02) and moderate for SPC (DD = 25.93), indicating the Machadinho do Oeste region as a priority area for mastitis control, and the Ariquemes microregion and west of the Porto Velho microregion as areas of high SPC. The results demonstrated the feasibility of spatial analysis as a tool for evaluating of refrigerated raw milk quality indicators and may support the definition of public and private strategies and policies to improve the milk quality and legislation adequacy.	
Palavras-Chave: 	Amazônia Ocidental; Bacterial count; Contagem bacteriana; Contagem de bactérias; Contagem de células somáticas; Krigagem; Leite cru resfriado; Qualidade do leite; Rondônia; Western Amazon.	
Thesagro: 	Leite.	
Thesaurus Nal: 	Kriging; Milk quality; Somatic cell count.	
Categoria do assunto: 	--
Q Alimentos e Nutrição Humana	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/216006/1/cpafro-18438.pdf	
Registro original: 	Embrapa Rondônia (CPAF-RO)	
Exemplares: 	CNPTIA - (20495-1) - UPC - AP - DD -  -  -  - DIS
CPAF-RO - (18438-1) - UPC - AP - DD -  -  -  - DIS