title: [Variation in the weight of the afterbirth of mares due to various biological factors].
mesh_terms: D000818:Animals; D001722:Birth Order; D001724:Birth Weight; D001835:Body Weight; D005321:Extraembryonic Membranes / Q000033:anatomy & histology*; D005260:Female; D006736:Horses / Q000033:anatomy & histology*; D008297:Male; D009929:Organ Size; D010920:Placenta / Q000033:anatomy & histology*; D012737:Sex Factors; D014470:Umbilical Cord / Q000033:anatomy & histology*
vernacular_title: Promĕnlivost hmotností secundin klisen z hlediska püsobení rüzných biologických vlivů.