ADSC 3300 Lecture Notes - Lecture 7: Fetus, Central Nervous System
17 Mar 2017
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**important notes: online quiz (due by next friday), quiz 4 (march 27th over materials starting march. 3rd), midterm (april 5th), homework due april 17th, 3 journal reports due april 24th. If we have a feed, it has a gross energy (or feed energy) Ratios form de/ge, when you see a change in this value, that means this ingredient that has a low ratio must have had a high fiber ratio. Low me/de ratio usually means it"s a high protein ingredient. Energy requirement = maintenance: + growth, + activity, + environmental temperature. Maintenance is estimated as a function of body weight to the 0. 75 power: bw0. 75 = metabolic body size. Effect of temp on growth performance of pigs. Thermoneutrality = temperature where animal doesn"t have to generate energy to stay warm/maintain body temperature: below thermoneutrality, calories must be expended. In the cold, animal with eat more which gives it more calories and will stay warm.
