Nutritional effects on ovulation, embryo development and the establishment of pregnancy in ruminants

bovin brebis cattle cows esteroides ewes feed intake feeding level females femelle fertilidad fertilite fertility food intake ganado bovino gonadotrophine gonadotropinas gonadotropins hembra hypophyse niveau d'alimentation nivel alimenticio oocytes ova ovaire ovaries ovarios oveja ovin ovinos ovule pituitary gland plane of nutrition prise alimentaire (animaux) prise alimentaire (homme) proteine proteins reproduction sheep steroids utero uterus vaca vache