The influence of β-carotene supplementation on β-carotene concentration in the corpus luteum and on hormone concentration in the plasma of heifers

Author:

Flachowsky G.,Schlenzig M.,Kirsche Brigitta,Lebzien P.

Abstract

AbstractThe objective of the study was to investigate the influence of different levels of β-carotene supplements on the β-carotene concentration in the corpus luteum and on hormone concentrations in the plasma of heifers. 32 heifers (average body weight: 371 kg) were fed a low carotene diet (< 1 mg per kg DM) for 120 days. The heifers were divided into four groups according to body weight and age and supplied with 0, 100, 200 or 300 mg β-carotene per animal and day. Heifers were artifically inseminated after day 60 of the experiment and were slaughtered after day 120 of the experiment. Carotene concentration in the corpus luteum (2.3, 27, 50 and 81 μg/g for 0, 100, 200 and 300 mg β-carotene per animal per day), in plasma and in ovary was significantly influenced with increased carotene supplements. LH-concentration of plasma decreased and β-oestradiol-concentration increased with carotene supplementation. High concentrations of β-carotene in the corpus luteum and ovaries of cattle seem to act as a depot which is available when high vitamin A requirements during ovulation have to be met.

Publisher

Cambridge University Press (CUP)

Subject

General Medicine

Reference14 articles.

1. The effect of beta-carotene and vitamins A, D3 and E on some reproductive parameters in cows;Iwanska;Acta Veterinaria Hungarica,1997

2. Effects of synthetic beta-carotene and vitamin A supplementation on the fertility of dairy cows;Vencl;Scientia Agriculturae Bohemica,1988

3. The effect of β-carotene on the fertility of dairy heifers receiving maize silage

4. Reproductive Performance of Lactating Holstein Cows Fed Supplemental β-Carotene

5. Beta-carotene, vitamin A and vitamin E contents of corpora lutea and folliculor fluid in physiological and hormonally influenced estrous cycle in cows;Rosival;Symposium “Vitamine und Ergotropika”,1987

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