“…In addition, study of Begum et al (2009) showed that some nutrients that contribute to sperm motility were arginine, carnitine, Zn, vitamin B12, vitamin C, vitamin E, glutathione, selenium, and Coenzyme Q-10. The nutrients found in Moringa leaf are arginine, Zn, Se, vitamin C, and E. Since Moringa leaf contains amino acid arginine (1.78%), Zn (31.03 mg/kg), Se (363 mg/kg) (Moyo et al, 2011), vitamin C (220 mg/100g) (Dhakar et al, 2011), and vitamin E (77 mg/100 g) (Moyo et al, 2011), the higher sperm motility in bulls fed with Moringa leaves might be due to these nutritional contents. Further studies are needed to clarify the main nutrients that significantly affect the sperm motility.…”