The use of a metabolic profile test in dairy herds

Payne, J. M.; Dew, Sally M.; Manston, R.; Faulks, M

doi:10.1136/vr.87.6.150

Cited by 247 publications

(137 citation statements)

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“…However, in contrast to Payne et al (1970) and Whitlock, Little and Rowlands (1974), no association was found between milk yield and Hb or PCV. Since most changes of Hb and PCV were opposite to those of total protein, fluid balance changes do not appear to be a common cause for modifications of these parameters.…”

Section: Discussionmentioning

confidence: 66%

Thyroid hormones, blood plasma metabolites and haematological parameters in relationship to milk yield in dairy cows

et al. 1983

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To study their relationship to milk yield, the concentrations, in jugular venous blood, of thyroxine iodine (T 4 I), thyroxine (T 4 ), 3,5,3'-tri-iodothyronine (T 3 ), glucose, non-esterified fatty acids (NEFA), triglycerides, phospholipids, cholesterol, total protein, albumin, urea, haemoglobin and packed cell volume (PCV) have been measured in 36 cows (Simmental, Swiss Brown, Holstein and Simmental x Holstein) of different ages during a full lactation, pregnancy, dry period, parturition and 150 days of the ensuing lactation. Thyroid hormones and triglycerides were negatively, and total protein, globulin, cholesterol and phospholipids were positively, correlated with uncorrected or corrected milk yield during several periods of lactation, whereas glucose, NEFA, albumin, urea, haemoglobin and packed cell volume were not correlated with milk yield. The 10 animals with the highest milk yield (18-9 to 23-5 kg/day) exhibited significantly lower values of T 4 I, T 4 , T 3 and glucose, significantly higher levels of total protein and globulin and tended to have higher levels of NEFA than the 10 cows with the lowest milk yield (10-9 to 14-3 kg/day) throughout or during certain periods of lactation, whereas concentrations of triglycerides, phospholipids, cholesterol, albumin, haemoglobin and PCV did not differ. Changes in T 4 I, T 4 , T 3 , glucose and total jprotein during lactation were also influenced by age, presumably associated with an increase in milk production with age. T 3 was consistently lowest and cholesterol and phospholipids, during later stages of lactation, were highest in Holsteins, which had the highest milk yields of all breeds. Changes of blood parameters were mainly caused by shifts in energy and protein metabolism in association with level of milk production.

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Section: Discussionmentioning

confidence: 66%

Thyroid hormones, blood plasma metabolites and haematological parameters in relationship to milk yield in dairy cows

et al. 1983

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“…Metabolic profiles are used to evaluate these phenomena in the herd (Payne et al, 1970). The measurement of specific metabolites allows the evaluation of adequacy of the main metabolic pathways associated with energy, protein, and minerals and then provides useful information related to nutrition and animal health to optimize the productive and reproductive potential of cows (Kida, 2003;Macrae et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of blood metabolites in dairy cows grazing under two pasture allowances and supplemented with corn silage under restricted grazing conditions

et al. 2016

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-This study was conducted to evaluate the influence of management tools -daily pasture allowance and corn silage supplementation -during periods of forage shortage on the metabolism of dairy cows grazing low-mass pasture in temperate regions. Forty lactating Holstein cows were used during an experimental period of seventy days (April 15 to June 23, 2012). Blood metabolites and milk production were determined in fall-calving dairy cows grazing under two daily pasture allowances (PA) (moderate, 17 kg vs. high, 25 kg dry matter (DM)) and supplemented with corn silage (CS) (low, 4.5 kg vs. high, 9.0 kg DM). All cows received 3 kg DM of concentrate. Plasma concentrations of β-hydroxybutyrate (BHBA), nonesterified fatty acids (NEFA), and urea were determined using an automated spectrophotometer, and milk production was electronically measured at each milking time during the trial. The experimental design was completely randomized using a 2 × 2 factorial arrangement of treatments. The increase in daily PA decreased plasma concentrations of BHBA (0.91±0. , but did not change milk production. The positive effect of increasing PA was associated with a high herbage intake, while the lack of response to increasing CS supplementation was attributed to a high substitution of pasture intake (0.9 kg DM pasture/kg DM CS). Low corn silage supplementation is recommended.

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“…O uso do perfil metabólico começou em 1960 (Payne et al 1970), porém foi no final dos anos 70 que a técnica foi utilizada como parte de programas de monitoramento de saúde e produtividade dos rebanhos (Whitaker et al 1999). A partir de então essa técnica é utilizada amplamente em vários países, principalmente europeus (Whitaker 2004, Stengärde 2010.…”

Section: Introductionunclassified

Perfil mineral de vacas mestiças Girolanda no período de transição em sistema semi-intensivo em duas estações do ano

et al. 2015

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Neste estudo foi avaliado o perfil metabólico de vacas leiteiras no período de transição durante o verão e o inverno. Foram utilizados 31 animais pluríparos mestiços girolando em cada estação, totalizando 62 vacas. No verão permaneciam em pasto com suplementação de silagem de milho e concentrado. No inverno, a exigência nutricional era suprida apenas com silagem de milho e concentrado. Foram feitas um total de 11 coletas de sangue de cada animal segundo o seguinte protocolo: quatro coletas pré-parto espaçadas semanalmente, no dia do parto e com 2, 5, 10, 15, 21 e 30 dias pós-parto. Foram avaliadas as concentrações de cálcio, fósforo e magnésio. Todos os analitos variaram em função do estatus fisiológico. As concentrações médias de cálcio e magnésio foram maiores no verão do que no inverno. Em ambas as estações, as menores concentrações médias de cálcio ocorreram próximas ao parto, sendo que 75% dos animais no inverno e 35,48% dos animais no verão estavam hipocalcêmicos. Apenas no décimo dia as concentrações de cálcio voltaram aos níveis do pré-parto, demonstrando que esse tempo é necessário para a adaptação da nova condição de lactante. As concentrações de magnésio foram menores no pós-parto do que no pré-parto nas duas estações, demonstrando a necessidade desse mineral para a produção de leite. As concentrações médias de magnésio permaneceram sempre dentro dos valores de referência, porém 19% dos animais aos dois dias pós-parto no inverno e 7% dos animais aos 10 dias pós-parto no verão tinham concentrações inferiores a esses limites. As concentrações de fósforo sofreram grande variação ao longo do peri-parto, porém sempre em níveis elevados, sendo que 49,8% dos animais no inverno e 37,3% no verão tinham níveis de fósforo acima dos valores de referência

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The use of a metabolic profile test in dairy herds

Cited by 247 publications

References 0 publications

Thyroid hormones, blood plasma metabolites and haematological parameters in relationship to milk yield in dairy cows

Thyroid hormones, blood plasma metabolites and haematological parameters in relationship to milk yield in dairy cows

Evaluation of blood metabolites in dairy cows grazing under two pasture allowances and supplemented with corn silage under restricted grazing conditions

Perfil mineral de vacas mestiças Girolanda no período de transição em sistema semi-intensivo em duas estações do ano

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