Mary Allen
Nsomba za crayfish zinali zodziwika bwino kuposa masiku ano. Zinapezeka pafupifupi m'madzi aliwonse, zinali gawo lokhazikika lakhitchini yakunyumba, komanso zochitika zatsiku ndi tsiku. Mutha kuwonanso nyama zosangalatsa izi lero - m'dziwe lanu lamunda. M'nkhaniyi, tikufuna kufotokoza momwe nsomba za crayfish zimakhalira, zomwe zimafunikira, komanso momwe mungazisungire m'munda mwanu.
Nsomba za Crayfish: Zambiri
Nsomba zotchedwa crayfish za ku Ulaya, monga momwe dzina lake likusonyezera, ndi nyama yomwe imakhala m'dziko lonselo. Itha kupezeka ku Europe konse, kupatula Ireland, Northern England, ndi Iberia Peninsula. Ankakhala ndi mitsinje ndi mitsinje kumeneko, masiku ano akukhala - chifukwa cha mliri wa crayfish - makamaka m'madzi otsekedwa monga maiwe a miyala, maiwe a nsomba, ndi maenje a miyala. Ndikofunika pano kuti malo ogona okwanira amapangidwa ndi miyala ndi mizu m'dera la banki. Chifukwa masana nkhanu imapuma pobisala ndipo imangokhala yotakasuka madzulo kuti ipite kukasaka.
Kuzungulira kwa moyo wa nkhanu zolemekezeka kumayamba mu June. Kenako ana atakula bwino amaswa ndi kukhala ndi mayi mpaka woyamba molt. Kenako amafunafuna malo awoawo obisala, chifukwa ndi chakudya chofala cha mphutsi, kafadala, ndi nsomba. Chifukwa amakula mofulumira, amasungunuka mpaka kakhumi m'chaka choyamba. Pambuyo pa molt iliyonse, amatha kugwidwa ndi tizilombo toyambitsa matenda ndipo amakhalabe ophimbidwa kwa nthawiyi mpaka chipolopolo chatsopanocho chitauma.
Nsombayo ikafika zaka 3, imakhala yakula bwino komanso yokhwima pogonana. October ndi nthawi yokwerera, yomwe ndi yosiyana ndi nyama zina. Yaimuna imamangirira paketi ya umuna kunsi kwa yaikazi, ndipo imakhala pamenepo kwa mwezi umodzi. Kenako yaikazi imayamba kuikira mazira okwana 400, omwe amalumikizidwa ndi umuna. Tsopano patenga milungu 26 kuti ana aswere. Panthawi imeneyi, mazirawo amamatira kunsi kwa yaikazi, kumene amawasamalira ndi kuwateteza. Komabe, pamapeto pake, mpaka 20% amakula kukhala nyama zazing'ono, zomwe zimakhala ndi amayi mpaka molt yoyamba.
Tsoka ilo, chiwerengero chochepachi chimathandizanso kuti chiwerengero cha nkhanu zolemekezeka chatsika moopseza. Chifukwa chachikulu, komabe, ndi china: mliri wa nrayfish. Mliriwu watsala pang’ono kupha nsomba zambiri ku Germany pazaka 120 zapitazi. Mlandu ndi kuitanitsa nsomba za crayfish za ku America, zomwe zimanyamula tizilombo toyambitsa matenda; mwiniwakeyo amalimbana ndi tizilombo toyambitsa matenda. Mliriwu unafalikira mofulumira chifukwa cha kusamuka kosalekeza kwa nsomba za crayfish zaku America kuchoka m’mayiwe ndi m’nyanja. Masiku ano nsombazi zimakhala ndi mwayi pokhapokha ngati sizikusungidwa pamodzi ndi nsomba za ku America, izi zimatetezedwa kuti zisawonongeke ndipo kufalikira kwa matendawa kumayimitsidwa. Koma samalani pogula khansa! Mitundu iwiriyi ndi yofanana ndipo imatha kusokonezeka mosavuta. Kugula koyipa apa kungatanthauze kufa kwa nsomba zanu.
Nsomba za Crayfish M'dziwe Lanu
Kusunga nkhanu zaku Europe m'munda mwanu sizovuta malinga ngati zotsatirazi zikuwonedwa: Kuya kwa dziwe kuyenera kukhala osachepera 1m. Popeza nkhanu zimafuna madzi kwambiri, dziwe siliyenera kukhala ndi mankhwala ophera udzu kapena mankhwala ophera tizilombo. Phindu loyenera la pH lili pakati pa 6 ndi 9, zomwe zili ndi okosijeni ziyenera kukhala 5.5 mg / l kapena kupitilira apo. Pakuwongolera: Miyezo iyi ikufanana ndi zosowa za carp. Nsomba za nkhanu sizimakonda kuzizira kwambiri, kutentha kwa madzi kuyenera kukhala pakati pa 16 ndi 24 ° C m'chilimwe.
Chikhalidwe cha dziwe ndi chofunikanso. Chifukwa cha khalidwe lake lapadera, crustacean imafuna m'mphepete mwake yomwe imatha kukumbidwa, nthaka yokhazikika komanso m'mphepete mwake, komanso malo a banki owolowa manja. Kuwasunga m'mabeseni a liner ndi ma dziwe ndikotheka, koma osati abwino, chifukwa mwayi wokumba ndiwochepa pano. Nsomba za nkhanu zimathera nthawi yochuluka kukumba: zimamanganso machubu odzikumba okha omwe amateteza ngati nyumba yake. Koma pali chinthu chachiwiri chomwe chili chofunikira kwambiri pa nsomba ya rayfish ndipo chimathandizira kwambiri kuti moyo wake ukhale wabwino: pogona! Kaya ndi miyala ikuluikulu, mizu, matailosi a padenga, mapaipi adongo, kapena zina zotero, nsomba za nkhanu zimafunikira malo obisalira. Kumeneko imathera tsiku, imabisala ikaopsezedwa, kapena imadya nyama yake mwamtendere.
Makhalidwe a Crayfish
Pankhani yodya, nkhanu siichita kusankha monga momwe imachitira pa dziwe lake, chifukwa ndi omnivorous. Nsomba zakufa, mphutsi, nkhono, ndi tizilombo zili m'gulu lake monga momwe masamba akugwa, zotsalira za zomera, ndi ndere. Nthawi zambiri, simuyenera kuda nkhawa ndi zomera zanu zapadziwe. Nsomba za nkhanu sizimadya zamoyo, koma zimadya mbali zakufa za zomera; izi ndi zofewa choncho zosavuta kudya. Popeza amapeza kale zonse zofunika m’dziwe, nthawi zambiri sikofunikira kuwadyetsa. Komabe, eni ake ena amafuna kupha nsomba za nkhanu ndi kutaya masamba, chakudya cha nsomba, kapena zigoba za mazira m’dziwe. Nsomba za nkhanu nazonso zimasangalala nazo.
Dziwe lanu lidzapindula ndi mfundo yakuti khansa siidya yosankha. Akamayeretsa madzi m'malo otsalira achilengedwe, mwachitsanzo, zomera ndi nyama zakufa, amaonetsetsa kuti madzi ali abwino. Sizopanda pake kuti nsomba za crayfish zimatchedwanso "apolisi a zaumoyo padziwe".
Koma bwanji ngati muli kale ndi anthu ena okhala m’dziwe? Palibe yankho lomveka bwino la funso ili: Kawirikawiri, munthu aliyense wokhala m'dziwe - mosasamala kanthu kuti ndi nsomba, newt, kapena mphutsi za dragonfly - zimakhala ndi malo osiyana padziwe. Mwachitsanzo, nsomba za crayfish ndi zosonkhanitsa pansi. Choncho mwachizoloŵezi sikuli chiwopsezo ku nsomba zosambira kapena achule. Komabe, ngati nyama yoteroyo isambira kutsogolo kwa zikhadabo zake, palibe chitsimikizo chakuti nkhanuyo sitsina. Koma zingakhalenso zoopsa mwanjira ina. Nsomba zazikulu kwambiri ndizowopsa, makamaka kwa crustaceans achichepere, chifukwa amapeza chakudya mu nkhono zazing'ono, zomwe sizinali chitetezo. Thandizo la kukhalirana nthawi zonse kwa anthu angapo okhala padziwe ndi malo okwanira ndi malo obisalamo kuti aliyense achoke; pali zochepa zomwe zingatsimikizidwe.
Mfundo yomaliza: Mwadzidzidzi mukusowa nkhanu, ngakhale kulibe nsomba zina komanso mphaka woyandikana nawo kapena ngwazi analipo? Zimenezi zikhoza kuchitikanso! Ngati dziwe la nsomba silikhala bwino m'dziwe lanu, limatha kusamuka. Izi si zachilendo chifukwa crustaceans - ngakhale ndi gill breathers - akhoza kukhala ndi moyo popanda madzi kwa nthawi ndithu. Mutha kuyika chotchinga kuzungulira dziwe kuti lisasamuke - koma simungazindikire kuti pali vuto ndi dziwe lomwe likupangitsa kuti isamuke, ndipo nkhanu zimatha kufa. Mwa njira, zokolola zachilimwe ndizoyenera kwambiri kwa oyamba kumene a Kresb: Awa ali pakati pa 3 ndi 6cm wamtali ndipo akadali ochepa kwambiri kuti asamuke. Amazoloweranso kupatsidwa mikhalidwe yabwinoko kuposa nkhanu zakale. Izi zimakupatsani nthawi yokwanira kuti mupange dziwe labwino la nkhono zosangalatsa izi.