Companion Animals

Wa it till medic a l sc hool to get those questions b

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Unformatted text preview: om this pa per . Wa it till medic a l sc hool to get those questions. B . B a s i c B i o l o g y o f D o g s ( C a n i s fa mi l i a r i s ) a nima lsc ie nc e 2.uc da vis.e du/a ns1/ha ndouts/c ompa nion.html 1/3 10/30/13 Compa nion Anima ls 1) Digestive system: simple stoma c hed, dogs a r e c a r nivor es but not obliga te c a r nivor es, tha t is, they c a n sur vive on pla nt ma ter ia l a s long a s it is of high qua lity 2) F eeding systems in dogs: Per c ent of B ody Weight F ed Da ily F eeding F or : Per c ent of B ody Weight (Dr y Ma tter ) Ma intena nc e 2. 5% of body wt Gesta tion: wk 1 to 6 2. 5% Gesta tion: wk 6 to 9 3. 0% La c ta tion (6 weeks) 5 to 7% Medium wor k 5% Hea vy wor k 7. 5% In c old wea ther - a dd 20% mor e of a mount fed In hot wea ther - subtr a c t 20% of a mount fed 3) Repr oduc tive system: puber ty depends upon br eed & body wt (r a nge fr om 6 to 11 months); dogs a r e N OT polyestr us - they ha ve only ON E hea t per ma ting sea son a nd the sea sons a r e, gener a lly, 6 months a pa r t; Pr o- estr us per iod la sts 4 to 15 da ys = swelling of the vulva & muc ous disc ha r ge (often with blood); when disc ha r ge stops estr us begins (a c c epta nc e of ma le); estr us la sts 4 to 8 da ys with ovula tion a t da ys 3 to 5 (ovula tion c a n la st between 12 & 72 hour s) shedding a s ma ny a s 20 eggs Gesta tion is 58 - 63 da ys; a ver a ge liter siz e 5- 7 pups; wea ning usua lly a t 35 to 42 da ys of a ge; if not impr egna ted dogs often develop pseudopr egna nc y (ma mma r y development, swelling, nesting) N OTE: Dur ing c opula tion va gina l musc les c ontr a c t & gla ns of the penis expa nds, c a using a nima ls to be insepa r a ble; this is c a lled ' the tie' a nd la sts 20- 30 minutes - it is impor ta nt to N OT tr y sepa r a ting the dogs F or a dditiona l, gener a l infor ma tion on dog owner ship, a good pla c e to sta r t is the Amer ic a...
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