Variation in ratio factors for age-adjusting part-lactation records.
D000367:Age Factors; D000818:Animals; D002417:Cattle; D005223:Fats / Q000032:analysis; D005260:Female; D007774:Lactation; D008892:Milk / Q000032:analysis; D011247:Pregnancy; D012621:Seasons
D005223:Fats