Haptoglobin and its association with naturally occurring diseases in Holstein heifer calves

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Abstract

The present study evaluated the use of haptoglobin (Hp) as an indicator of health and performance in 166 Holstein heifer calves reared in an intensive production system. Calves were evaluated at D6-9; D10-13; D20-23; D35-38 and D65-68, corresponding to the days of life. The absence or presence of diseases was evaluated by physical examination and classification of scores. The performance parameters evaluated were body weight, height at withers and hind width. Hp was measured by spectrophotometric technique. The highest prevalence of diarrhea (59.4%; 98/165) was observed in D10-13, bovine respiratory disease (BRD) was on D35-38 (25.8%; 42/163), and umbilical inflammations in D6-D9 (7.8%; 13/166). Highest values of Hp were observed in animals with diarrhea (P=0.02), and umbilical inflammation (P=0.057), in comparison with the group of healthy calves. A significant negative correlation was observed between Hp and performance index. This protein presented an important relation with diarrhea and performance of the calves, opening perspectives on its utilization as a biomarker of diseases.

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Ramos, J. S., Madureira2, K. M., da Silva, K. N., Bosco, K. A., Morita, L. M., Guimarães, J. E., & Gomes, V. (2021). Haptoglobin and its association with naturally occurring diseases in Holstein heifer calves. Arquivo Brasileiro de Medicina Veterinaria e Zootecnia, 73(3), 551–559. https://doi.org/10.1590/1678-4162-12159

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