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| Titel: |
Variation in Vitamin E, Glutathione Peroxidase and Retinol Concentrations in Blood Plasma of Primiparous Sows and their Piglets, and in Vitamin E, Selenium and Retinol Contents in Sows' Milk |
| Auteur: |
Håkansson, J. Hakkarainen, J. Lundeheim, N. |
| Verschenen in: |
Acta agriculturae Scandinavica. Section A, Animal science |
| Paginering: | Jaargang 51 (2001) nr. 4 pagina's 224-234 |
| Jaar: |
2001-12-01 |
| Inhoud: |
The concentrations of vitamin E, glutathione peroxidase (GSH-Px) and retinol were analysed in blood plasma of six primiparous sows during gestation and lactation and in their suckling piglets, and the concentrations of vitamin E, selenium and retinol were analysed in colostrum and in sows' milk. During late gestation the concentrations of vitamin E and retinol in blood plasma increased slowly while no changes were found for GSH-Px. This was followed by a large decline on the day of farrowing, when the lowest mean values of 1.07 mg, 0.15 mg and 2879 U per litre (l) of blood plasma, respectively, were recorded. During lactation the concentrations of vitamin E, GSH-Px and retinol in blood plasma of the sows increased to levels observed during late gestation. The highest mean concentrations of vitamin E (17.9 mg kg- 1 ), selenium (200 μg l- 1 ) and retinol (2.45 mg kg- 1 ) were found in colostrum, but with a large variation between sows. One week postpartum the concentrations of vitamin E, selenium and retinol in sow milk had decreased, on average by 86, 68 and 71%, respectively, after which only small changes occurred. Mean concentrations of vitamin E (1.77 mg l- 1 ), GSH-Px (682 U l- 1 ) and retinol (0.07 mg l- 1 ) were low in the blood plasma of the piglets at birth, but a large increase was observed on the next sampling occasion at the age of 3 days (vitamin E: 5.31 mg l- 1 ; GSH-Px: 996 U l- 1 ; retinol: 0.19 mg l- 1 ). The mean concentration of vitamin E in blood plasma of the piglets declined thereafter until the age of 6 weeks (1.04 mg l- 1 ), when there was a small increase, while the mean concentrations of GSH-Px and retinol continued to increase during the suckling period. A high correlation was found between the concentration of vitamin E in blood plasma and sidefat thickness of the sows (r = 0.94), and between the concentration of vitamin E in colostrum and vitamin E in blood plasma of the sows on the day of farrowing (r =0.77). High correlations were also found between the concentration of vitamin E in the blood plasma of the piglets at 3 days and 5 weeks of age and the concentration of vitamin E in colostrum (r = 0.78) and (r =0.89), respectively. The results indicate that vitamin E storage in the adipose tissues of the sow has a great influence on the supply of vitamin E via colostrum and milk to the piglet. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 7 van 7 gevonden artikelen
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