A takarmányozás és a szaporodás összefüggesei: Irodalmi áttekintés

Translated title of the contribution: Relations between feeding and reproduction. Review article

Research output: Contribution to journalArticle

Abstract

Long-lasting effect of feeding (first of all the energy and protein supply) has been reviewed on the reproduction of male and female animals. Energy deficiency does not harm permanently the embryonic development of primordial germ cells. However even a slight feed deficiency in ewe during the last 6 weeks of pregnancy or during the lactation period can worsen the future ovulation rate of lambs. Questions of nutriment supply and sexual maturation have been treated in case of both sexes. Thereafter the effect of feed doses on the number of ovulated eggs has been reviewed. Hormonal bases of flushing effect has also been treated. Fertility rate and survival of embryos determine the realization of the potential of ovulated eggs. Incorporation rate of different nutriments into the embryos has also been treated. Energy deficiency together with protein deficiency in highly pregnant dams diminish most firmly the body-mass of offsprings to be born. System of lobulo-alveolar epithelial cells in the mammary gland of ruminants develops mainly during th pregnancy. The undernutrition not only diminishes the quantity of colostrum but the start of milk production is also retarded. Nutriment supply has a significant effect on the length of period between birth and refertilization. In this case, the restart of ovarian function is the key factor. Although deficiency of certain mineral matters (P, Mn, I) may also cause anoestrus, in most of practical cases disturbances of energy and protein supply cause the most problems. Hormonal changes in the background of the above mentioned processes have also been evaluated. Finally, the most important future research areas of the topic have been prognosticated.

Original languageHungarian
Pages (from-to)413-420
Number of pages8
JournalMagyar Allatorvosok Lapja
Volume51
Issue number7
Publication statusPublished - 1996

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Eggs
Reproduction
Embryonic Structures
Anestrus
energy deficiencies
Alveolar Epithelial Cells
Sexual Maturation
Protein Deficiency
Pregnancy
Colostrum
Birth Rate
Ruminants
Human Mammary Glands
Ovulation
Lactation
Germ Cells
Malnutrition
Embryonic Development
Minerals
embryo (animal)

ASJC Scopus subject areas

  • veterinary(all)

Cite this

A takarmányozás és a szaporodás összefüggesei : Irodalmi áttekintés. / Fekete, S.; Huszenicza, G.

In: Magyar Allatorvosok Lapja, Vol. 51, No. 7, 1996, p. 413-420.

Research output: Contribution to journalArticle

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