Laying performance, digestibility and plasma hormones in laying hens exposed to chronic heat stress as affected by betaine, vitamin C, and/or vitamin E supplementation

por Attia, Youssef A., Abd El-Hamid, Abd El-Hamid E., Abedalla, Ahmed A., Berika, Marfat A., Al-Harthi, Mohammed A., Kucuk, Osman, Sahin, Kazim, Abou-Shehema, Baha M.
Publicado 2016