title: Precocious mammary development in an 8-month-old Holstein heifer.
abstract: An 8-month-old, virgin Holstein heifer with precocious mammary development was presented for examination. Protein, fat, and lactose in the mammary secretion were 14.90%, 0.12%, and 0.20%, respectively; somatic cell count was 3.9 x 10(6)/mL, with no bacterial infection. The heifer was inseminated at 15 months of age, confirmed pregnant, and subsequently slaughtered.
authors.affiliation: Agriculture Research Division, Alberta Agriculture and Rural Development, Suite 204, 7000-113 Street, Edmonton, Alberta T6H 5T6. divakar.ambrose@gov.ab.ca
authors.forename: Divakar J
authors.initials: DJ
authors.lastname: Ambrose
authors.forename: Daya G V
authors.initials: DG
authors.lastname: Emmanuel
mesh_terms: D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D002417:Cattle / Q000254:growth & development*; D005223:Fats / Q000032:analysis; D005260:Female; D007785:Lactose / Q000032:analysis; D008321:Mammary Glands, Animal / Q000033:anatomy & histology* / Q000254:growth & development* / Q000378:metabolism; D008892:Milk / Q000737:chemistry*; D008894:Milk Proteins / Q000032:analysis
chemical_list: D005223:Fats; D008894:Milk Proteins; D007785:Lactose