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The Effects of Dietary L-Carnitine Supplementation on Semen Traits, Reproductive Parameters, and Testicular Histology of Japanese Quail Breeders

S. Sarica^*,1, M. Corduk, M. Suicmez, F. Cedden, M. Yildirim^# and K. Kilinc^*

^* Faculty of Agriculture, Department of Animal Science, ^# Department of Food Engineering, and Faculty of Arts and Science, Department of Biology, Gaziosmanpasa University, 60240 Tokat, Turkey; Faculty of Agriculture, Department of Animal Science, and Department of Animal Breeding, Ankara University, 06110, Turkey

Correspondence: ¹ Corresponding author: senaysarica2002{at}yahoo.com

The present study was conducted to determine the effects of supplemental dietary L-carnitine at different levels on semen traits, reproductive parameters, and testicular histology in male Japanese quail breeders. Forty-five 5-wk-old male Japanese quail breeders were fed the same basal diet that was supplemented with 0 (control), 250, or 500 mg of L-carnitine/kg of diet. There were no significant effects of dietary L-carnitine supplementation at different levels on BW, feed intake, testes weight, fertility rate, hatchability rate of set and fertile eggs, and malonaldehyde production (µg/mL of semen) of male Japanese quail breeders. However, the supplementation of dietary L-carnitine at levels of 250 or 500 mg/kg to a basal diet significantly increased sperm viability and decreased multinucleated giant cells per testes in mature male Japanese quail breeders. Additional studies are required to explore the antioxidant role that L-carnitine has in Japanese quail breeders.

Key Words: L-carnitine • semen trait • fertility • hatchability • spermatozoa morphology • antioxidant • Japanese quail breeder

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