Khoom noj khoom haus Crayfish: dab tsi crayfish siv los noj hauv qhov xwm txheej thiab lawv tau noj dab tsi hauv kev poob cev qhev

Nyob rau hauv ntau lub teb chaws (xws li Russia), crayfish nqaij yog suav hais tias yog ib tug delicacy. Cov neeg zoo siab noj cov zaub mov no. Tab sis muaj xws li ib pawg ntawm cov neeg uas xav txog crayfish tsis txaus nyiam zaub mov. Yog vim li cas rau qhov "kev ntxub ntxaug" no yog lub tswv yim cuav ntawm uXNUMXbuXNUMXbthe kev noj haus ntawm no arthropod.

Qee tus ntseeg tias cov tsiaj no noj rot thiab carrion. Tab sis qhov no tsis muaj tseeb kiag li. Hauv tsab xov xwm no peb yuav tham txog dab tsi cov arthropods noj.

Tus tsiaj ntawd yog dab tsi?

Ua ntej tham txog dab tsi crayfish noj, nws tsim nyog paub txog cov arthropod inhabitants ntawm cov dej. Cov tsiaj no belongs rau invertebrate crustaceans. Muaj ntau ntau hom, rau npe tsuas yog qee qhov ntawm cov feem ntau:

• European;
• Far East;
• Teb chaws Cuban;
• Florida;
• marble;
• Mexican pygmy, thiab lwm yam.

Cov kab mob qog noj ntshav tau nthuav dav thoob plaws txhua lub tebchaws. Lawv qhov chaw nyob yog cov dej qab zib, pas dej, pas dej thiab lwm lub cev dej. Ntxiv mus, ntau hom tuaj yeem nyob hauv ib qho chaw ib zaug.

Outwardly, mob qog noj ntshav zoo li nthuav heev. Nws muaj ob ntu: cephalothorax thiab plab. Ntawm lub taub hau yog ob khub ntawm antennae thiab ob lub qhov muag. Thiab lub hauv siab muaj yim khub ntawm caj npab, ob tug uas yog claws. Hauv qhov xwm txheej, koj tuaj yeem pom mob qog noj ntshav ntawm ntau hom xim ntawm xim av thiab ntsuab mus rau xiav-xiav thiab liab. Thaum ua noj, tag nrho cov pigments disintegrate, tsuas yog liab.

Cancer nqaij yog suav hais tias yog ib tug delicacy rau ib tug yog vim li cas. Ntxiv rau qhov saj zoo heev, nws tsis muaj rog, yog li nws muaj cov ntsiab lus calorie tsawg. Tsis tas li ntawd, cov nqaij muaj ntau yam tseem ceeb. Muaj calcium, thiab iodine, thiab vitamin E, thiab yuav luag tag nrho cov vitamins los ntawm pawg B.

Nws noj dab tsi?

Contrary to nrov kev ntseeg hais tias crayfish pub rau rot, lawv yog heev xaiv hauv zaub mov. Yog li cas crabs noj? Yog tias cov khoom siv hluavtaws thiab cov tshuaj ntxiv muaj nyob hauv cov zaub mov, ces tus arthropod no yuav tsis kov nws. Feem ntau, cov inhabitants ntawm reservoirs yog heev rhiab heev rau kev huv si ntawm ib puag ncig. Hauv ntau lub nroog, lawv "ua haujlwm" ntawm cov dej siv dej. Cov dej uas nkag rau hauv lawv hla aquariums nrog crayfish. Lawv cov tshuaj tiv thaiv yog saib xyuas los ntawm ntau lub sensors. Yog tias cov dej muaj cov tshuaj phem, ces arthropods yuav qhia rau koj paub txog nws tam sim ntawd.

Crustaceans lawv tus kheej yog omnivores. Lawv cov khoom noj muaj cov zaub mov ntawm cov tsiaj thiab zaub keeb kwm. Tab sis hom khoom noj thib ob yog qhov ntau tshaj.

Ua ntej tshaj plaws, nws yuav noj algae ntes tau, cov nyom nyom thiab nplooj poob. Yog tias cov zaub mov no tsis muaj, ces yuav siv ntau yam dej lilies, horsetail, sedge. Ntau tus neeg nuv ntses pom tias arthropods noj nettles nrog kev txaus siab.

Tab sis mob qog noj ntshav yuav tsis dhau los ntawm cov zaub mov ntawm tsiaj keeb kwm. Nws yuav zoo siab noj kab larvae thiab cov neeg laus, mollusks, worms thiab tadpoles. Tsis tshua muaj, mob qog noj ntshav tswj kom tau ntses me me.

Yog hais tias peb tham txog cov decaying seem ntawm cov tsiaj, ces qhov no yog suav tias yog ib tug tsim nyog ntsuas. Cov qog nqaij hlav qeeb qeeb thiab nws tsis tuaj yeem ntes tau "cov nqaij tshiab". Tab sis tib lub sijhawm, tus tsiaj tuaj yeem noj tsuas yog tsis dhau decomposed tsiaj cov zaub mov. Yog hais tias cov ntses tuag tau rotting ntev, ces lub arthropod yuav yooj yim dhau los ntawm.

Txawm li cas los xij cog cov zaub mov tsim lub hauv paus ntawm kev noj haus. Txhua hom algae, dej thiab cov nroj tsuag dej, ua kom txog li 90% ntawm cov zaub mov. Txhua yam tsis tshua noj yog tias koj tswj kom ntes nws.

Cov tsiaj no nquag noj tsuas yog nyob rau lub caij sov. Nrog rau qhov pib ntawm lub caij ntuj no, lawv muaj kev tshaib kev nqhis. Tab sis txawm nyob rau lub caij ntuj sov tus tsiaj tsis noj ntau zaus. Piv txwv li, tus txiv neej noj ib zaug lossis ob zaug ib hnub. Thiab tus poj niam noj tsuas yog ib zaug hauv ob lossis peb hnub.

Lawv pub dab tsi crayfish thaum yug me nyuam hauv captivity?

Niaj hnub no, feem ntau crayfish yog zus artificially. Ua li no, ua liaj ua teb yog tsim rau ntawm lub pas dej, pas dej me me lossis siv cov thawv hlau. Txij li thaum lub hom phiaj tseem ceeb ntawm kev lag luam yog kom tau txais ib qho loj, lawv pub arthropods nrog zaub mov muaj ntau lub zog. Mus pub:

• nqaij (raw, boiled thiab lwm yam daim ntawv);
• qhob cij;
• cereals los ntawm cereals;
• zaub;
• tshuaj ntsuab (tshwj xeeb tshaj yog crayfish hlub nettles).

Nyob rau tib lub sijhawm, cov zaub mov yuav tsum tau muab ntau heev kom nws noj tsis muaj qhov seem. Txwv tsis pub, nws yuav pib rot thiab arthropods tsuas yog tuag. Raws li txoj cai, qhov ntim ntawm cov zaub mov yuav tsum tsis pub ntau tshaj 2-3 feem pua ​​​​ntawm cov tsiaj qhov hnyav.

Tsis ntev los no, ntau tus pib khaws cov tsiaj no hauv tsev, hauv cov thoob dej yug ntses. Hauv qhov no, cov lus nug tshwm sim: dab tsi pub? Yog tias muaj lub khw muag tsiaj hauv nroog, koj tuaj yeem yuav khoom noj nyob ntawd. Hauv kev sib xyaw tshwj xeeb rau arthropods muaj tag nrho cov vitamins thiab minerals tsim nyog rau lawv txoj kev noj qab haus huv.

Zoo, yog tias nws nyuaj rau kev noj zaub mov, lossis nws dhau lawm, ces koj tuaj yeem pub nws nrog cov nqaij qaib lossis lwm yam nqaij, algae, earthworms thiab tag nrho tib lub nettles. Txij li thaum crayfish muaj kev nkag siab zoo rau kev huv ntawm ib puag ncig, nws yog ib qho tsim nyog los xyuas kom meej tias cov khoom noj uas tsis muaj nyob hauv cov thoob dej yug ntses rau ntau tshaj ob hnub.