Ndeipi mhuka imbwa yako - carnivore kana omnivore?

Imbwa ndeyemhuri ye canine, chirongwa che carnivores, asi izvi hazvirevi nguva dzose maitiro chaiwo, anatomy, kana zvokudya zvinosarudzwa.

Zvitongerei

Dzimwe mhuka dzinogona kuita sezvikara uye kuita sezvikara. Asi chaizvoizvo zvikara here? Iwe iva mutongi.

• Mhumhi dzinorwisa mhuka dzesango, asi kutanga dzinodya zviri mudumbu radzo, pamwe nemukati memhuka idzi.¹
• Mhungu dzinodya zvakasiyana siyana zvekudya, zvinosanganisira mhuka diki dzinoyamwisa, amphibians, shiri, michero, netsvina yemhuka.
• Pandas imhuka zvakare, asi imhuka dzinodya uye dzinodya mashizha emushenjere.

Kutsvaga chokwadi

Akasimba kana echokwadi carnivores sekitsi ane chinodiwa chepamusoro chetaurine (an amino acid), arachidonic acid (a fatty acid) uye mamwe mavhitamini (niacin, pyridoxine, vhitamini A) anowanikwa mumapuroteni emhuka nemafuta.

MaOmnivores, akadai sembwa nevanhu, haana chinodiwa chepamusoro chetaurine uye mamwe mavhitamini uye anogona kugadzira arachidonic acid kubva kumafuta emiriwo ari ega.

Hunhu hwe omnivores

Kune zvimwe zvinovaka muviri, hunhu uye zvemuviri zvinhu zvinoparadzanisa nyika mbiri idzi - omnivores uye carnivores:

• Imbwa dzine mazino (molars) dzine nzvimbo dzakati sandarara, dzakagadzirirwa kukuya mapfupa pamwe chete nefibrous plant material.
• Imbwa dzinogona kugaya dzinenge zana kubva muzana yemacarbohydrates adzinodya.²
• Mune imbwa, ura hudiki hunotora anenge 23 muzana yehuwandu hwehuwandu hwehutambo hwemimba, maererano nemamwe omnivores; mumakati, ura hudiki hunotora 15 muzana chete.^3,4
• Imbwa dzinogona kugadzira vhitamini A kubva ku beta-carotene inowanikwa mumiti.

Kuvhiringidzika mumhedziso

Vamwe vanhu vanogumisa zvisiri izvo kuti imbwa, kunyange zvazvo dziri mhuka dzinovaraidza, dzinofanira kungova mhuka dzinodya nyama nokuti dziri muboka remhuka dzinodya nyama. Kunyatsotarisa maitiro, maitiro, uye zvokudya zvinosarudzwa nembwa zvinotungamirira kumhedziso yokuti ivo chaizvoizvo omnivores: vanokwanisa kugara vane hutano nekudya zvose mhuka uye kudya kwezvirimwa.

¹ Lewis L, Morris M, Hand M. Mhuka duku yekurapa kwekudya, 4th edition, Topeka, Kansas, Mark Morris Institute, p. 294-303, 216-219, 2000.

² Walker J, Harmon D, Gross K, Collings J. Kuongorora kushandiswa kwezvokudya mumbwa vachishandisa ileal catheter technique. Nutrition Journal. 124:2672S-2676S, 1994. 

³ Morris MJ, Rogers KR Kuenzanisa zvinhu zvekudya uye metabolism mumbwa nekatsi, mukudya kwembwa uye katsi, ed. Burger IH, Rivers JPW, Cambridge, UK, Cambridge University Press, p. 35–66, 1989. 

⁴ Rakebush, I., Faneuf, L.-F., Dunlop, R. Kudyisa maitiro mufiziology yemhuka diki nehombe, BC Decker, Inc., Philadelphia, PA, p. 209–219, 1991.