Oxidative damage, vitamin E and mammary gland health in heifers

R.J. Bouwstra; R.M.A. Goselink; P. Dobbelaar; M. Nielen; T. van Werven

Oxidative damage, vitamin E and mammary gland health in heifers

in Mastitis control

Autor:innen:

R.J. Bouwstra

R.J. Bouwstra Faculty Veterinary Medicine, Marburglaan 2, 3584 CN Utrecht, The Netherlands Corresponding author: R.J.Bouwstra@uu.nl

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R.M.A. Goselink

R.M.A. Goselink Faculty Veterinary Medicine, Marburglaan 2, 3584 CN Utrecht, The Netherlands Corresponding author: R.J.Bouwstra@uu.nl

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P. Dobbelaar

P. Dobbelaar Faculty Veterinary Medicine, Marburglaan 2, 3584 CN Utrecht, The Netherlands Corresponding author: R.J.Bouwstra@uu.nl

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M. Nielen

M. Nielen Faculty Veterinary Medicine, Marburglaan 2, 3584 CN Utrecht, The Netherlands Corresponding author: R.J.Bouwstra@uu.nl

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, und

T. van Werven

T. van Werven Faculty Veterinary Medicine, Marburglaan 2, 3584 CN Utrecht, The Netherlands Corresponding author: R.J.Bouwstra@uu.nl

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Art:: Kapitel

Seiten:: 135–144

DOI:: https://doi.org/10.3920/9789086866496_023

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The relationship between oxidative damage and vitamin E in blood, milk and liver and the mammary gland health in periparturient heifers were investigated. Eight Holstein Friesian heifers received a daily vitamin E supplement of 3,000 international units from two months before calving; eight heifers were not supplemented. Oxidative damage was determined with malondialdehyde (MDA). Blood was sampled nine times prepartum, on calving day and twice postpartum. Liver biopsies were taken at week -5, -1, and 2 relative to calving day. Milk was sampled directly after calving, the first two milkings, on days 3, 7 and 14 at 6 am. Serum and liver tissue were analysed for vitamin E, cholesterol and MDA. Milk was analysed for vitamin E, MDA, fat, protein and somatic cell count. Supplementation resulted in increased vitamin E and the ratio vitamin E:cholesterol in blood and liver tissue. Vitamin E concentration in milk tended to be higher in the supplemented group. In both groups, MDA blood concentrations rises at calving, so periparturient heifers seem to experience oxidative stress. Vitamin E could not prevent this rise, but the significantly lower MDA blood concentrations in the supplemented group in the two weeks after calving suggest vitamin E has a role in recovery from parturition-related oxidative stress. Vitamin E reduced oxidative damage in liver, while no obvious effect was found in milk. In the supplemented group, fewer SCC fluctuations were observed and SCC tended to be lower. The results show that the relationship between oxidative damage and vitamin E differs within blood, liver tissue and milk and that vitamin E supplementation seems to influence mammary gland health in a positive way.

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Mastitis control

From science to practice

ISBN:: 9789086866496

Verleger:: Wageningen Academic

Print-Publikationsdatum:: 30 Oct 2008

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Oxidative damage, vitamin E and mammary gland health in heifers

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Mastitis control

From science to practice

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