Avaliação da contagem de células somáticas na primeira lactação de vacas holandesas no dia do controle mensal

Barbosa, Severino Benone Paes; Monardes, H.G.; Cue, R.I.; Ribas, Newton Pohl; Batista, Ângela Maria Vieira

doi:10.1590/s1516-35982007000100012

Cited by 5 publications

(3 citation statements)

References 16 publications

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“…A CCS tem correlação alta com a incidên-cia de mastite clínica (RUPP e BOICHARD, 2000), sendo a CCS considerada um dos principais métodos utilizados para interpretar a saúde da glândula mamária (BARBOSA et al, 2007). Portanto, pode ser utilizada como característica substituta à mastite em programas de melhoramento genético.…”

Section: Introductionunclassified

Ocorrência da mastite clínica e fatores ambientais que favorecem sua incidência

Oliveira¹,

Bignardi²,

Filho³

et al. 2013

Bol. Ind. Anim.

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RESUMO: O objetivo deste estudo foi verificar as frequências de mastite clínica (MC) em vacas Holandesas de alta produção de leite, bem como os fatores ambientais que influenciam sua incidência. A média da produção de leite aos 305 dias de acordo com a classe de mastite foi estimada pelo método de quadrados mínimos. As frequências de MC foram analisadas de acordo com as ordens do parto (1 a 6), ano do parto, estação do ano, fase da lactação, e quarto infectado (anterior direito, anterior esquerdo, posterior direito, posterior esquerdo). A frequência da MC por ordem de parto variou de 11,39% no primeiro parto a 21,18% no terceiro parto. 58,56 % dos casos de mastite ocorreram no período das águas e 41,44% no período da seca. O terço final da lactação foi o período com maior ocorrência de casos de MC (45,33%). Os quartos posteriores apresentaram maior frequência de MC (54,25%). Os animais com maiores níveis de produção de leite aos 305 dias (9.466,42 Kg) foram os que apresentaram maior incidência de mastite clínica. Deve-se encontrar um ponto de equilíbrio entre a produção de leite e a mastite a fim de aumentar a rentabilidade da produção. O estudo dos períodos de maior frequência de ocorrência de mastite clínica é fundamental para a pecuária leiteira, para o direcionamento de um programa de controle dessa doença.Palavras-chave: bovinos de leite, contagem de células somáticas, características produtivas. OCCURRENCE OF CLINICAL MASTITIS AND ENVIRONMENTAL FACTORS FAVORING ITS INCIDENCEABSTRACT: The objective of this study was to evaluate the frequency of clinical mastitis (CM), in high production Holstein cows, as well as the environmental factors that favoring its incidence. The average milk production of 305 days, according to the class of mastitis was estimated by the method of least squares. The frequencies of clinical mastitis (CM) events were analyzed according to the calving sequences (1-6), year of calving, season and stage of lactation, and infected quarter (right anterior, left anterior, right posterior, left posterior). The frequency of CM ranged from 11.39% in the first calving to 21.18% in the third. 58.56% of mastitis cases occurred in the wet season, and 41.44% occurred in the dry season. The final lactation stage (200 to 300 days) was the period with the highest occurrence of CM (45.33%). The quarter posterior had a higher frequency CM (54.25%). Animals with higher levels of milk production of 305 days showed highest occurrence of CM. We must find a balance between milk production and mastitis in order to increase profitability. The study of the periods of greatest frequency clinical mastitis events is essential for dairy farming, to direct a program to control this disease.

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Section: Introductionunclassified

Ocorrência da mastite clínica e fatores ambientais que favorecem sua incidência

Oliveira¹,

Bignardi²,

Filho³

et al. 2013

Bol. Ind. Anim.

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“…The values were compared with the IN51-2002; properties with technical assistance had SCC and TBC values within the expected range, but the properties without assistance showed SCC values above that proposed by the IN 51: 750,000 cells/mL. Intrinsic factors such as cow age, days in lactation, and breed, and extrinsic factors such as storage time of the sample and collection period (Barbosa et al, 2007) may affect the SCC, in addition to the presence of an intramammary infection. According to Lacerda et al (2010), periods at high temperatures, high humidity and periodic rains facilitate the exposure of teats to a greater number of microorganisms, thus increasing the SCC.…”

Section: Resultsmentioning

confidence: 91%

Technical assistance and seasonality in the diet and production of dairy herds in household agriculture of Western Paraná

et al. 2015

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-The objective of the present study was to characterize the food sources, as well as the composition and quality of milk obtained from household farms of western Paraná State (Brazil) with and without technical assistance during the different seasons. For such, 24 properties were selected, 12 of which only received assistance and technical support. Four milk samples were taken (summer, autumn, winter and spring) to assess the physicochemical composition, somatic cell count and total bacterial count and feed supplied to the animals to assess the chemical composition (crude protein, ash, dry matter and neutral detergent fiber). The data were analyzed in a completely randomized design with a 2 × 4 factorial arrangement; the first factor was the presence and absence of technical assistance and the second factor was the four seasons of the year. Due to the dairy tradition of properties in the region, technical assistance had no significant effects on the health and nutritional quality of food, the number of animals, the production, or total bacterial count, which suffered oscillations only depending on the seasons of the year. However, the presence of assistance contributed to reducing somatic cell counts of milk produced and marketed. The technical assistance does not affect the quality of forages and concentrates used or the milk composition; however, it improves the sanitary quality of the milk produced throughout the four seasons of the year in household farms of western Paraná.

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“…Vários trabalhos científicos têm procurado estabelecer a CCS em diversos rebanhos e localidades, relacionando-a com fatores ambientais, genotípicos, sanitário, nutricional e dentre outros (SOUZA et al, 2005;CAMPOS et al, 2006;MAGALHÃES et al, 2006;PASCHOAL et al, 2006;ANDRADE et al, 2007;BARBOSA et al, 2007).…”

Section: Introductionunclassified

Avaliação da contagem de células somáticas do leite como indicador da ocorrência de mastite em vacas Gir

Reis¹

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Avaliação da contagem de células somáticas na primeira lactação de vacas holandesas no dia do controle mensal

Cited by 5 publications

References 16 publications

Ocorrência da mastite clínica e fatores ambientais que favorecem sua incidência

Ocorrência da mastite clínica e fatores ambientais que favorecem sua incidência

Technical assistance and seasonality in the diet and production of dairy herds in household agriculture of Western Paraná

Avaliação da contagem de células somáticas do leite como indicador da ocorrência de mastite em vacas Gir

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