Mary Allen
Ko ma<em>sturgeon anofanira kuchengetwa mudziva rebindu here uye mumamiriro ezvinhu api apo kuchengetwa kwawo kunogona kurondedzerwa se“kwakafanira rudzi”? Tinoda kubata nemibvunzo iyi nemimwe mibvunzo mune ino chinyorwa.
Mashoko pamusoro peSturgeon
Sturgeon ihove ine bhonzo, kunyange zvazvo marangwanda ayo akaomeswa nehafu chete. Chimiro chemuviri uye mafambisirwo ekutuhwina anoita kuti aite kunge ekare, pamwe nemabhonzo akaomarara ari kumusana kwake, uye zvinototendwa kuti masturgeon avepo kweanenge mamiriyoni mazana maviri nemakumi mashanu emakore. Pamwe chete, ma<em>sturgeon haakuvadzi, ane runyararo, uye hove dzakasimba dzinoda mvura inotonhorera, ine oxygen yakawanda. Iyo huru yekunze inovhiringidza nzvimbo dzakawanda dzekugara, kubva kunzizi kusvika kumakungwa - unogona kuzviwana munzvimbo dzakawanda.
Chavanofanana vese kugona kwavo kushambira: Vashambiri vanoshingirira zvakanyanya uye vanogara vachifamba, ndosaka vachitora nzvimbo yakawanda. Masikati kazhinji vanenge vari pasi, asi kunyanya usiku dzimwe nguva vanotsauka vachienda pamusoro.
Dzimwe hove hadzina njodzi kune sturgeon, asi idambudziko padivi radzo rinogona kuvatorera hupenyu hwavo: sturgeon haigone kushambira kumashure. Ndosaka mashinda algae, mabheseni ane makona, midzi, nematombo makuru ari dambudziko rehove idzi. Kazhinji havakwanise kubuda mune iyi “migumo yakafa” vodzipa nekuti hapana mvura yakachena yakakwana inotakurwa nemumagadziko avo.
Kune anenge makumi matatu emhando dzesturgeon pasi rese ayo akasiyana kwete mukutaridzika kwawo chete asiwo muhukuru hwemuviri wawo: Mhando huru, semuenzaniso, inogona kukura kusvika 30 m kureba uye kurema kutenderedza tani. Imwe pfungwa isiriyo yakapararira pano ndeyekuti mhuka dzese dzinogona kuchengetwa mudziva nekuti hukuru hwadzo hunoenderana nekukura kwedziva. Hofori hofori yakadaro haigoni kudzikamisa kukura kwayo kusvika 5 cm nekuda kwekuti dziva harina kukura zvakakwana.
Iyo sturgeon inokodzera dziva rako pachako ingangove iyo chaiyo sterlet, iyo inokwana 100cm kureba. Inogona kurarama makore anosvika 20, ihove yemvura yakachena yakachena, uye inowanikwa zvikuru munzizi nemadziva ane mvura zhinji. Iine kamhino katete, kureba, kakakombamira zvishoma uye rutivi rwayo rwepamusoro rwakasvibira kusvika kune grey, nechepasi yakatsvuka-chena kuita yero muruvara. Mabhonzo ekumusana ane tsvina machena.
Dziva reiyo Real Sterlet
Sezvatotaurwa, sterlet ndiyo duku kudarika mhuri yesturgeon uye, naizvozvo, inonyanya kukodzera kuchengetedza madziva. Nekudaro, iwe unofanirwa kugara uchiyeuka kuti kuchengeta mudziva hakumbosviki kunzvimbo yakasikwa. Iwe haungambogone kugadzirazve rwizi zvine musoro. Kana iwe wakasarudza kugadzira yakanakisa sturgeon dziva, chinhu chinonyanya kukosha ndechekuva nenzvimbo dzekushambira dzemahara. Iwe unofanirwa kudzivirira zvirimwa zvemumvura uye matombo makuru pasi (nekuda kweiyo backwashing issue) uye dziva rinofanira kuva neraundi kana oval shape. Mudziva rakadaro, ma<em>sturgeon anogona kufambisa nzira dzawo pasina kukanganiswa nezvipingamupinyi. Imwe nzvimbo yekuwedzera ndeye madziro edziva anotsvedza. Pano vanoshambira diagonally pamadziro uye nokudaro vanosvika pamusoro pemvura.
Iyo yakasimba sefa system yakakoshawo, sezvo masturgeons anongonzwa akasununguka mumvura yakajeka, ine oxygen-yakawanda; mufaro wekushambira unogona kutsigirwa nepombi inoyerera. Kazhinji, dziva rinofanira kunge rakadzika 1.5 m, asi kudzika kunogara kuri nani: Iyo inenge 20,000 malita emvura inofanira kunge yakapfuma muokisijeni. Kana iyo sturgeon ikagutsikana uye inonzwa yakasununguka munzvimbo yayo, inogona kutove yakapfava.
Kudyisa Sturgeon
Imwe pfungwa yakakosha pano ndeyekudya, sezvo sturgeon ine zvimwe zvakasarudzika ipapo. Muzhinji, masturgeon anodya zvipembenene zvipembenene, makonye, uye molluscs, izvo zvavanotsvaira mumiromo yavo nemabarbel avo. Naizvozvo vanokwanisa chete kudya kubva pasi. Havagone kuita chero chinhu nekudya kunoyangarara.
Nekuda kwehukuru hwavo, chikafu chinowanikwa mudhamu hachina kukwana; Special feed inofanira kudyiswa. Chinhu chakakosha apa ndechekuti inonyura pasi nekukurumidza uye haipfuure carbohydrate yemukati ye14%. Protein nemafuta zvirimo zvakanyanyisa. Kudyisa kunofanira kuitika manheru, sezvo masturgeons ari kunyanya kushanda pano. Mhuka diki dzinoda kudyiswa kakati wandei pazuva.
Iwe unofanirwawo kuve nechokwadi kuti chikafu hachirevi mumvura kweawa inopfuura awa, kana zvisina kudaro, icharegererwa zvachose. Imwe, inodzoreka nzvimbo yekudyira inofanirwa kushandiswa, uko chikafu chisina kupararira zvakanyanya uye nekudaro "kusatariswa": Inoshanda zvakanyanya munzvimbo yakati sandara. Nhungamiro yehuwandu hwekudya ndeyekuti inenge 1% yehuremu hwemuviri inofanira kudyiswa pazuva.
Chiitiko chakakosha chinomuka kana masturgeons akabatana neKoi. Ihove idzi dzinozivikanwa se omnivores uye kana ukasangwarira, hapazovi nechikafu chakasara chevarombo sturgeon pasi. Izvi zvakare zvakaipa kune koi nekuti chikafu chine mafuta akawanda chinovakuvadza mukufamba kwenguva. Waizowana zvakawandisa. Zvimwe iwe unofanirwa kudyisa usiku kana (iyo inoshandiswa nevaridzi vakawanda vemadziva) iwe unodyisa chikafu nerubatsiro rwepombi zvakananga kune dziva pasi, apo sturgeon inogona kuidya pakarepo.
Kuvhara Shoko
Pakupedzisira, iwe unofanirwa kuzvisarudzira iwe kuti ndechipi chinzvimbo chaunoda kutora pane iyo sturgeon nyaya. Zvisinei, kana ukasarudza pamusoro pehove yakadaro, iwe unofanirwawo kugadzira iyo inodiwa dziva zvinhu kuitira kuti sturgeon inogona kunzwa yakasununguka. Uye izvo zvinosanganisira pamusoro pese nzvimbo, nzvimbo, nzvimbo!