1995
DOI: 10.1590/s0103-90161995000100026
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Flutuação das proteínas séricas em vacas primíparas e multíparas no período pré-parto

Abstract: RESUMO:O comportamento das proteínas séricas foi avaliado em dois grupos de vacas de leite, 6 primíparas e 6 multíparas, durante as ultimas 6 semanas pré-parto. Para separação da fração protéica foi empregado o método de eletroforese, enquanto para quantificação da proteína total foi utilizado o método de biureto. O sangue, retirado da região coccígea, foi amostrado nos períodos 5, 4, 3, 2, l semanas pré-parto e no dia do parto. Os resultados indicam uma queda na concentração da proteína total (p < 0.0001), em… Show more

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Cited by 2 publications
(3 citation statements)
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“…When the criteria for drying was daily milk production, the minimum milk production to maintain lactating cows was 5 L for 59% of the properties, and between 15 and 20 L for 13% of the interviewees. The extension of the dry period has an important impact on the cash flow of the property and the performance of the animals because it interferes with the relationship between productive (lactating cows) and unproductive animals (growing animals and dry cows) (Santschi et al, 2011), affects the incidence of metabolic problems in the post-calving period (Bachman and Schairer, 2003), influences mastitis prevention (Green et al, 2007), and also affects colostrum production (Machado Neto et al, 1995).…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…When the criteria for drying was daily milk production, the minimum milk production to maintain lactating cows was 5 L for 59% of the properties, and between 15 and 20 L for 13% of the interviewees. The extension of the dry period has an important impact on the cash flow of the property and the performance of the animals because it interferes with the relationship between productive (lactating cows) and unproductive animals (growing animals and dry cows) (Santschi et al, 2011), affects the incidence of metabolic problems in the post-calving period (Bachman and Schairer, 2003), influences mastitis prevention (Green et al, 2007), and also affects colostrum production (Machado Neto et al, 1995).…”
Section: Resultsmentioning
confidence: 99%
“…With relation to the cow, factors can be linked to the calving number, breed, volume of colostrum produced, extension of the dry period, and presence of mastitis, all of which can influence this transfer (Robison et al, 1988;Machado Neto et al, 1995). The newborn, on the other hand, should have the ability to consume and to absorb the colostrum constituents in adequate amounts (James et al, 1983;Losinger and Heinrichs, 1995), which is reduced over time after birth.…”
Section: Introductionmentioning
confidence: 99%
“…Esse comportamento pode ter caracterizado a baixa mobilização imunológica para a formação do colostro na primeira cria. De acordo com Machado Neto et al (1995), a demanda para produção do colostro em ovelhas de mais de uma lactação é maior, visto a maior produção garantida pelo aumento no número de células secretoras, e por isso, a concentração de globulinas é incrementada na corrente sanguínea a fim de suprir essa necessidade.…”
Section: Globulina Glicose E Magnésiounclassified