Xayawaankee ayuu yahay eygaagu - hilib cune ama omnivore?

Eeydu waxay ka tirsan yihiin qoyska canine, oo ah amarka xayawaan-cunista, laakiin tani had iyo jeer macnaheedu maaha dabeecad gaar ah, anatomy, ama doorbid cunto.

Naftaada u garsoor

Xayawaanka qaar ayaa laga yaabaa inay u ekaan karaan ugaarta oo waxay u dhaqmaan sida ugaarsiga. Laakiin runtii ma yihiin kuwo ugaadhsada? adaa xaakin ah.

• Yeeydu waxay weeraraan geedo yaryar, laakiin marka hore waxay cunaan waxa calooshooda ku jira, iyo sidoo kale gudaha xayawaankan.¹
• Coyotes waxay cunaan cuntooyin kala duwan, oo ay ku jiraan naasleyda yaryar, amfibiyaanka, shimbiraha, miraha, iyo saxarada geedaha yaryar.
• Pandas sidoo kale waa hilib cune, laakiin waa herbivores waxayna inta badan cunaan caleemaha bamboo.

Helitaanka runta

Xayawaanka adag ama runta ah sida bisadaha ayaa leh shuruud sare oo loogu talagalay taurine (amino acid), arachidonic acid (acid dufan ah) iyo fiitamiinada qaar (niacin, pyridoxine, fitamiin A) kuwaas oo laga heli karo borotiinka xayawaanka iyo ilaha baruurta.

Omnivores, sida eyda iyo bini'aadamka, ma laha baahi sare oo loogu talagalay taurine iyo fiitamiinada qaarkood waxayna soo saari karaan arachidonic acid saliidda khudradda keligood.

Astaamaha omnivores

Waxaa jira arrimo kale oo nafaqeyn, habdhaqan iyo jireed oo kala sooca labadan adduun - omnivores iyo hilib-cunista:

• Eeydu waxay leeyihiin ilko (molars) leh sagxad siman, oo loogu talagalay inay shiidaan lafaha iyo sidoo kale walxo dhirta ka sameysan.
• Eeydu waxay dheefsan karaan ku dhawaad ​​100% karbohaydraytyada ay cunaan.²
• Eeyaha, mindhicirka yar ayaa ku jira qiyaastii 23 boqolkiiba wadarta guud ee mareenka caloosha iyo mindhicirka, iyadoo la raacayo omnivores kale; bisadaha, mindhicirka yari waxa uu qaataa 15 boqolkiiba.^3,4
• Eeyadu waxay ka samaysan karaan fitamiin A beta-carotene ee laga helo dhirta.

Jahwareerka gabagabada

Dadka qaar ayaa si qalad ah u soo gabagabeynaya in eeyaha, in kasta oo ay yihiin xayawaan, ay tahay inay si fudud u noqdaan hilib-cunayaal sababtoo ah waxay ka tirsan yihiin nidaamka cunnooyinka. Fiirin dhow ee anatomy, habdhaqanka, iyo dookhyada cuntada ee eeyaha ayaa horseedaysa gabagabada in ay dhab ahaantii yihiin omnivores: waxay awoodaan inay caafimaad qabaan iyagoo cunaya labadaba xoolaha iyo cuntooyinka dhirta.

¹ Lewis L, Morris M, Gacan M. Nafaqada daweynta xayawaanka yaryar, daabacaadda 4aad, Topeka, Kansas, Mark Morris Institute, p. 294-303, 216-219, 2000.

² Walker J, Harmon D, Gross K, Collings J. Qiimaynta ka faa'iidaysiga nafaqeynta ee eeyaha iyadoo la isticmaalayo farsamada tuubada hoose. Wargeyska Nafaqada. 124:2672S-2676S, 1994. 

³ Morris MJ, Rogers KR Dhinacyada isbarbardhigga ee nafaqeynta iyo dheef-shiid kiimikaadka eyda iyo bisadaha, xagga nafaqada eyda iyo bisadaha, ed. Burger IH, Rivers JPW, Cambridge, UK, Cambridge University Press, p. 35–66, 1989kii. 

⁴ Rakebush, I., Faneuf, L.-F., Dunlop, R. Habdhaqanka quudinta ee physiology ee xayawaanka yaryar iyo kuwa waaweyn, BC Decker, Inc., Philadelphia, PA, p. 209-219, 1991kii.