ANS 3006C Lecture Notes - Lecture 5: Insulin-Like Growth Factor 1, Hypothyroidism, Cortisol
3 Sep 2016
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A. d. g: average daily gain, meat animals are sold by the pound at market, you need to know how many days the animal is on feed, and need to take regular weight measurements. F:g: feed to gain ration, an efficiency measure. You want a smaller amount of feed per pound gained. Fish have the smallest ratio, followed by poultry. Sequential pattern of growth (determined by physiological importance: tissues: Ectoderm skin, hair, sense organs, epithelial cells: 2) period of rapid growth. Muscle accumulates: 3) fat deposition begins. Muscle growth slows down: 4) primary fat deposition. Makes up 95% of the increased body weight in this stage. Frame size: for cattle, on average you want a 65% muscle to 23% fat ratio, frames: Large frame tall and long for age. Medium frame slightly tall and slightly long for age. Small frame small frame and shorter bodied for age. 900 lbs: smaller framed animals deposit fat at lighter weights, at equal compositions:
