An overview of Jatropha curcas meal-induced productive and reproductive toxicity in Japanese quail: Potential mechanisms and heat detoxification

作者：Farag Mayada R^*; Alagawany Mahmoud^*; Badr Mohamed M; Khalil Samah R; El Kholy Mohamed S

来源：Theriogenology, 2018, 113: 208-220.

DOI：10.1016/j.theriogenology.2018.03.011

• Jatropha cucas meal
• Heat treatment
• Reproductive toxicity
• Quails

The present study was carried out to investigate the toxic effects of dietary inclusion of raw Jatropha cucas meal [RJM, 3.5%] on productive and reproductive performances of laying Japanese quail and the influence of physical treatment of jatropha meal by heating at [100 degrees c] for 24 or 48 h [JH(24) or JH(48) respectively] on reducing these effects. The inclusion of RJM in quail diets significantly decreased the egg production, fertility and hatchability percentages and resulted in a high mortality rate. While heat treated jatropha meal [JH(24) or JH(48)] improved such undesirable effects. The levels of hepatic proteins related to lipid synthesis, cholesterol metabolism and those related to lipid synthesis and transporting to egg yolk were increased in JH(24) and JH(48) groups than RJM group. Hepatic contents of vitellogenin [VGT-II] and estrogen receptor alpha [ER alpha] and circulating estradiol [E2] were improved in JH(48) than RJM and JH(24) groups however still under the control values. On the other hand, estrogen receptor beta [ER beta] were restored to normal control value in both JH(24) and JH(48) groups. Histopathological investigation revealed that RJM produced various alterations in the histoarchitecture of liver, ovary and oviducts but these alterations were reduced in both JH(24) and JH(48) groups. From the obtained data we concluded that heating of jatropha meal for 24 h improved its nutritive value and increasing the time of heating is preferable for reduction of the most of toxic impacts indicating that heat treatment can convert toxic jatropha meal to an alternative protein source for livestock feed in a cheap and clean way without combining any other types of treatments.

• 出版日期2018-6