2014
DOI: 10.1590/s0100-736x2014000500002
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Acid-base balance of dairy cows and its relationship with alcoholic stability and mineral composition of milk

Abstract: Pesq. Vet. Bras. 34(5):398-402, maio 2014 398 RESUMO.-[Equilíbrio ácido-base de vacas leiteiras e sua relação com a estabilidade alcoólica e composição mineral do leite.] Esse trabalho teve como objetivo associar a ocorrência de distúrbios ácido-base com a estabilidade alcoólica do leite de animais a campo, bem como avaliar diferenças entre a composição mineral de leites estáveis e instáveis ao álcool. A amostragem compreendeu 96 vacas leiteiras, das quais o leite e o sangue correspondente de cada animal … Show more

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Cited by 15 publications
(16 citation statements)
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References 12 publications
(11 reference statements)
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“…Vacas com alcalose respiratória têm alta probabilidade de produzir leite com instabilidade alcoólica (14) . Para compensar esse distúrbio, o organismo do animal aumenta a excreção de bicarbonato no sangue.…”
Section: Resultsunclassified
“…Vacas com alcalose respiratória têm alta probabilidade de produzir leite com instabilidade alcoólica (14) . Para compensar esse distúrbio, o organismo do animal aumenta a excreção de bicarbonato no sangue.…”
Section: Resultsunclassified
“…Feed restriction (Gabbi et al, 2013, excess of fiber in the diet (Barchiesi-Ferrari et al, 2007), or nutrient imbalance (Marques et al, 2010b) negatively affect milk stability, although the underlying mechanisms are not completely determined; however, it seems that metabolism disturbance leading to metabolic acidosis (Fagnani et al, 2014;Marques et al, 2011) and higher permeability of the tight junctions of epithelial mammary cells is probably enrolled as a causal factor of the low milk stability.…”
Section: Discussionmentioning
confidence: 99%
“…Differences in lactose and protein contents between milk with high stability and unstable milk are partially due to inadequate supply of nutrients, feeding of low-quality forages, metabolic or ruminal disturbances, and poor hygienic-sanitary characteristics of milk (Zanela et al, 2006;Barchiesi-Ferrrari et al, 2007;Marques et al, 2010a;Fagnani et al, 2014;Gabbi et al, 2016;Werncke et al, 2016).…”
Section: Discussionmentioning
confidence: 99%
“…Blood pH changes may occur with high frequency in dairy cows, as blood acidification can occur resulting from DCAD reduction, ruminal acidosis (Ponce and Hernándes, 2005) or also high metabolic rate of lactating dairy cows (Fisher et al, 2012;Fagnani et al, 2014). Thus, based on results of the present study, increasing DCAD can maintain the blood pH near homeostasis, reduce milk concentrations of divalent cations, and probably contribute to avoiding problems with unstable milk proteins during ethanol test and also industrial heat treatment (Martins et al, 2015).…”
Section: Blood Metabolismmentioning
confidence: 99%
“…Therefore, lactating cows will have a high metabolic rate, experience more heat stress and be fed high non-fibrous carbohydrates feeds. All these factors may contribute to blood acidification and to increasing the incidence of metabolic diseases (Block, 1994;Fagnani et al, 2014).…”
Section: Introductionmentioning
confidence: 99%