Ratlarda Aflatoksin B1’in Spermatozoa Özellikleri ve Testislerde Yarattığı Hasar Üzerine Likopenin Koruyucu Etkisi

Taş, Muzaffer; Saruhan, Berna Güney; Kurt, Doğan; Yokuş, Beran; Denli, Muzaffer

doi:10.9775/kvfd.2009.1236

Cited by 3 publications

(1 citation statement)

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“…Given that testis size is positively associated with sperm production in birds [25], this strongly suggests that high carotenoid intake decreases ejaculate size in birds. However, studies in various taxa have also shown that an increased carotenoid intake at sexual maturity increases sperm quality [26][27][28], potentially rsbl.royalsocietypublishing.org Biol. Lett.…”

Section: Discussionmentioning

confidence: 99%

Long-term effect of yolk carotenoid levels on testis size in a precocial bird

2016

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Conditions experienced during prenatal development can have long-lasting organizational effects on offspring. Maternal carotenoids deposited in the eggs of birds and other oviparous species play an important role during fast embryonic growth and chick development through their antioxidant properties. However, the long-term consequences of variation in maternal carotenoid transfer for the offspring have seldom been considered. Since plasma carotenoid levels at adulthood are known to influence testis size and yolk carotenoid levels influence the ability to extract carotenoids later in life, we hypothesized that maternally transmitted carotenoids might influence gonad size at adulthood. Here, we showed that male Japanese quail (Coturnix japonica) originating from a carotenoid-enriched egg had smaller testes than control individuals at adulthood. This result shows that yolk carotenoids have long-term organizational effects. In addition, given that carotenoid intake at sexual maturity increases sperm quality and that a decreased testis size is associated with a lower sperm production, we propose that carotenoid exposure during embryo development might influence a trade-off between ejaculate size and sperm quality.

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Section: Discussionmentioning

confidence: 99%

Long-term effect of yolk carotenoid levels on testis size in a precocial bird

2016

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Non-hormonal feed additives as an alternative in animal reproduction

Mihaylova¹,

Krastanov²,

Vasilev³

2020

TJS

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Nowadays, a modern trend of the animal husbandry is to increase the reproductive potential of livestock and poultry. There is a large interest worldwide in discovering new and safe non-hormonal biologically active substances obtained from natural sources, which could substitute the synthetic hormones. The positive influence on reproduction in livestock of the biologically active substances of natural origin such as isoflavones, carotenoids, minerals, phytohormones, PUFAs, etc. represent a potential alternative. These substances are derived from various plant sources and micro and macro algae as well. In addition, those substances could provoke positive changes in animal reproduction practices, corresponding to the modern EU requirements for quality and safe for the human health nutrients. The present mini-review summarizes the known in respect of the trend of substitution of the hormonal ones and outlines the potential non-hormonal additives in livestock husbandry.

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