ANSC 4100 Lecture Notes - Lecture 1: Veterinary Medicine, Dust Bathing, Ethology
11 Apr 2018
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A(cid:374)i(cid:373)al a(cid:374)d it"s e(cid:374)(cid:448)iro(cid:374)(cid:373)e(cid:374)t animal environments = involves all of the physical, chemical, biological and behavioural elements surrounding an animal. Animals need to be able to express feelings to avoid frustration and stress! Impact of genetics on environment tolerance to heat and cold. Upper critical temperature is most important! (vs. lower: coat colour and depth, disease resistance, behaviour traits flightiness. , handling and facility design, mothering ability. Animal experience rearing environment during development can have permanent effects on morphology, body shape, physical abilities, physiology, stress response, sensory systems learning = temporary effects of experience can affect: A(cid:271)ility to adapt to feedi(cid:374)g, (cid:449)ateri(cid:374)g or other auto(cid:373)ated syste(cid:373)s, ha(cid:374)dli(cid:374)g : changes due to elective surgeries. Stage of production: stage of production affects: Breeding animals may need exposure to opposite sex. Parturient animals may need to be isolated from the group. Phenotypic size: size and age of the animal determines. Nutrients restricted vs. ad libitum (free choice) feeding determines:
