Red ko ja-breasted pacu (lat. Piaractus brachypomus, pyrapiting a Indiya) babban kifi ne, dangi mafi kusa na jan-breasted piranha da metinnis.
Ana ajiye shi a cikin akwatinan ruwa, amma ya dace kawai da ƙananan masu sha'awar sha'awa, yayin da yake girma (har zuwa 88 cm a cikin yanayi).
Rayuwa a cikin yanayi
Yana zaune a Kudancin Amurka, Kogin Amazon. A baya, an yi amannar cewa yawan jan-nonon pacu yana zaune a Orinoco, amma a cikin 2019 an sanya wannan yawan ga wasu jinsunan - Piaractus orinoquensis.
Hali a yanayi yayi kama da baƙar fata (Colossoma macropomum). An lura cewa kifi na yin ƙaura, amma ba a fahimci hanyoyin ƙaura ba sosai. Sakin ragowa yana farawa a farkon lokacin damina, tsakanin Nuwamba zuwa Fabrairu. Yaran yara suna tsayawa a kan koguna, kuma kifin da ya balaga ta jima'i yana motsawa zuwa gandun daji da ambaliyar ruwa.
Tushen abincin ya kunshi abubuwan shuka - 'ya'yan itace, tsaba, kwayoyi. Koyaya, kifi ne mai komai kuma yana cin kwari, ƙaramin kifi, da zooplankton a wani lokaci. Musamman a lokacin rani, lokacin da aka rage adadin abincin shuke-shuke.
Hadaddiyar abun ciki
Gabaɗaya, kifin bashi da ma'ana. Babbar matsalar tana cikin girmanta. Tabbas, basu isa girman da zasu iya kaiwa a cikin yanayi ba, amma ana buƙatar akwatin kifayen sararin samaniya don kifi mai tsayin cm 30.
Bayani
Piaractus brachypomus na iya kaiwa tsayin 88 cm kuma yana da nauyin kilogiram 25. Koyaya, a cikin akwatin kifaye, ya girma ƙasa da ƙasa, kusan cm 30. Tsammani na rayuwa ya wuce shekaru 15.
Matasan suna da launi mai haske tare da jan nono da ciki. Saboda wannan, galibi suna cikin rudani da wani nau'in makamancin wannan - mai cin naman jan-ciki mai cike da iska (Pygocentrus nattereri). Ana iya rarrabe su da sifar haƙoransu. A cikin jan ciki, suna da kaifi (don yaga nama), kuma a cikin jan buhu, suna kama da molar (don abincin shuke-shuke). An yi imanin cewa kamanceceniya da piranha ƙoƙari ne na kwaikwayon wani nau'in, don haka guje wa hankalin masu farauta.
Mutanen da suka balaga a cikin jima'i suna rasa kalar su mai haske kuma suna zama kamar baƙar fata.
Adana a cikin akwatin kifaye
Yaran da ke da tsayin 5-7 cm ana siyarwa sau da yawa a shagunan dabbobi ƙarƙashin sunan piranha na herbivorous. Masanan ruwa da basu da kwarewa suna siyan su, sannan sai ya zamana cewa kifin yana girma cikin sauri, akan hanya, cin tsire-tsire da ƙananan kifi.
Kari akan haka, ana bukatar tacewa mai matukar karfi don kiyayewa, tunda jar pacu din baya ciyarwa cikin nishadi kuma bayan ciyarwa akwai ragowar rubabbun abubuwa da yawa.
Matsayin mai mulkin, wannan kifin ana kiyaye shi ta ƙwararru. Sun fahimci ƙimar da ake buƙata na akwatin kifaye da kyau, suna amfani da matakan tacewa da yawa, kuma zaɓi manyan kifi azaman maƙwabta. Koyaya, koda tare da su, jan pacu da sauri yana girma zuwa kifi wanda akwatin kifaye yayi ƙanƙanta.
Gwargwadon zazzabin ruwa don abun ciki shine 26-28 ° C, pH 6.5 - 7.5. Kifi na iya jin kunya kuma yayi ƙoƙarin tsalle daga cikin ruwa. Yana da kyau a rufe akwatin kifaye.
Karfinsu
Suna samun jituwa da kifi mai kamanceceniya da juna. Koyaya, suna iya afkawa ƙaramin kifi. Saboda girman su, zasu iya zama tare da maƙwabta kaɗan.
Waɗannan na iya zama kifin kifi - plecostomus, pterygoplicht ko kifin kifin mai wutsiya (amma ya zama karami don kada ya yi ƙoƙarin cin abincin). Ana yawan samun Arowan a cikin manya-manyan ruwa. Daga cikin nau'ikan nau'ikan - piranha mai ja-iska da baƙar fata.
Ciyarwa
Herbivorous, sun fi son abincin tsire. Zai iya zama 'ya'yan itace (ayaba, apụl, pears), kayan lambu (karas, zucchini, kokwamba), abinci mai daɗi tare da abubuwan ganye. Kodayake, ana cin abincin dabbobi sosai.
A dabi'a, abincin su ya ƙunshi adadin adadi mai yawa kuma ciyar da kanta bashi da wahala.
Bambancin jima'i
Namiji yana da kaifin dorsal fin da haske mai haske.
Kiwo
Babu bayanai kan nasarar kiwo na jan buhunan talauci a cikin bauta.
