Colostrum shine ruwan zinare don lafiyar jaririn lokacin da aka haifeshi. Kalan ruwa shine ruwa kafin ruwan nono ya bayyana kuma ya bayyana kafin haihuwa da kuma nan da nan bayan haihuwa. Kalan fata shine abin da jariri yake buƙata a farkon kwanakin rayuwa.
Ya ƙunshi kitse, ruwa, immunoglobulins, sunadarai, da sauran abubuwa. Launi ne mai kalar rawaya kuma abun da yake dashi ba koyaushe yake zama daya ba, saboda yana dacewa da bukatun lafiyar jariri.
Kwalliyar fure wacce ke bayyana yayin da mahaifiya ke da ciki, An san shi da precalostrum kuma wannan yana faruwa ne saboda ƙirjin yana shirin lactation. Nonuwan suna shirya don shayarwa don haka suna ɓoye wannan ruwan, wanda kusan ba shi da abinci. Amma wannan shine dalilin da ya sa ya zama ruwan dare gama gari asara yayin ɗaukar ciki.
Lokacin da kwana uku ko huɗu suka shude bayan bayarwa, man kankara na iya bayyana. Ruwa ne mai kauri, rawaya wanda ke zuwa gaban madara. Reachesarar ta kai tsakanin milliliters 20 na kowane juzu'i a cikin kwanaki ukun farko bayan bayarwa, adadin da zai iya biyan bukatun abinci na jariri.
Kwayar fure tana dauke da mililita 100: 54 Kcal, gram 2 na mai, gram 9 na lactose, giram 5 na furotin. Hakanan yana da babban adadin IgA da lactoferrin, waɗanda sunadarai ne waɗanda ke taimaka wa jiki yaƙar cututtuka. Hakanan yana da lymphocytes da macrophages da kuma oligosaccharides. Colostrum shima yana da b-carotene wanda shine yake sanya shi rawaya. Duk wannan yana ciyarwa kuma yana kare jariri daidai gwargwado.
Yanayi yana da hikima kuma idan ana ciyar da jariri kafin nono ya bayyana, ɗankwalin zai sami duk abin da yake buƙata a farkon rayuwarsa.