matasa aladu za a iya bred da kuma takin a cikin shekaru 5-6 watanni. Duk da haka, saboda underdevelopment na Genital gabobin, su ne ba tukuna shirye don al’ada fruiting da girma da karfi, lafiya piglets, da saba don ƙarin amfani.
Sha’awar wasu manoma alade da sauri don samun aladu da kuma dawo da farashin siye da kiwon aladu yana haifar da manyan kurakurai. Mating a lokacin ƙuruciyar ƙuruciyarsa yana haifar da jinkiri a cikin ci gaban sarauniya da kansu, raguwa a cikin ciki da yawa, haihuwar ƙananan piglets mai rauni tare da ƙara yawan kamuwa da cututtuka. Rufe sarauniya a cikin watanni 6-7 yana haifar da 6-8 alade a lokacin haifuwa, 6-7 piglets a yaye.
Alade da aka haifa a watanni 7-8 suna da 8-8,5 piglets, 9-10 watanni – 9-10, 11-12 watanni – 10-11 piglets.
Shekaru na gashin farko na ƙananan dabbobi kuma yana rinjayar ci gaban glandar mammary. A cikin aladu mai watanni 11-12 an rufe shi da nauyin rayuwa mai nauyin kilogiram 120-130, glandular nama na glandar mammary an kafa shi a cikin lobules a bayyane, a cikin kowannensu alveoli ya ci gaba, a wasu alveoli, gaban wani sirri a bayyane yake. A cikin aladu 9-10 watanni, an bayyana lobulation na glandon, akwai alveoli, amma babu wani asiri a cikinsu har yanzu. A cikin aladu da aka rufe a cikin watanni 7-8, tare da nauyin rayuwa na 70-85 kg, lobules na nama na glandular ba su samo asali ba, babu alveoli, saboda haka samar da madara ya ragu sosai, wanda ke da mummunar tasiri ga aminci da ci gaba. na alade.
Haihuwa mai yawa da samar da madara, kyawawan halaye na uwa da samari masu dacewa, dace da m fattening, ba matasa aladu a farkon shafi a cikin shekaru 9-10 watanni tare da live nauyi na 120-130 kg. Don cimma irin wannan ci gaba, matsakaicin ci gaban yau da kullun na gilts a cikin reno dole ne ya zama aƙalla 500 g, wanda zai yiwu ne kawai idan an cika su da abinci. Matsakaicin haɓakawa yayin girma sarauniyar gaba kuma ba a so – wannan yana haifar da gishiri da yawa na dabbobi da tabarbarewar ingancin zuriya.
Girman gilts na reno yakamata ya zama ƙasa da na kitso, kuma ana samun wannan ta hanyar ciyar da abinci.
Amfanin insemination (mating) ya dogara ne akan ikon tantance lokacin estrus a cikin shuka, wanda hakan ya faru ne saboda ilimi da ikon amfani da wannan lamari. Ana kiran hadaddun tsarin tsarin ilimin lissafi wanda ke maimaita a jikin mace a cikin wani tsari jima’i sake zagayowar. Ya ƙunshi matakai da yawa, ko matakai, bisa ga abin da canje-canje na dabi’a ke faruwa a cikin halayen jima’i na mahaifa da ayyukan na’urorin haihuwa.
Matakin tashin hankali Halin canje-canje a cikin gabobin al’aura na waje: suna santsi suna kumbura, sun zama ja, madauki na al’aura yana shakatawa, ƙungiyoyin anti-peristaltic ana iya lura da su, kuma wani lokacin ƙarewa. Wannan shine estrus, yana nuna maturation na follicles da sakin hormone follicular. Yayin da follicles ke girma, estrus yana ƙaruwa. A hankali, mahaifa yana ƙara damuwa. Yawancin lokaci suna motsawa, suna ƙugiya, suna nuna hug reflex. Ciwon su ya ragu ko gaba ɗaya ba ya nan.
Lokacin karuwar yawan jima’i ya juya zuwa farauta – mahaifa yana nuna alamar rashin motsi kuma ya ba da damar boar ya rufe.
Ƙayyadaddun ƙayyadaddun lokaci na farkon estrus a cikin shuka shine daya daga cikin muhimman abubuwa a cikin tsarin haifuwa mai zurfi na garke. Ana iya gano farkon estrus a cikin aladu ta hanyar dubawa tare da boar bincike ko ta danna hannu a ƙasan baya. Matsayin sha’awar jima’i yana ɗaukar kwanaki 3-5, kuma estrus yana ɗaukar daga 36 zuwa 90, wani lokacin har zuwa awanni 120. ovulation. Sakin ƙwai daga follicle a cikin sarauniya masu girma yana faruwa sa’o’i 18-24 bayan fara farauta, a maye gurbin aladu – bayan sa’o’i 24-30.
A matsakaici, tsawon lokacin ovulation shine 10-15 hours, wani lokacin daga 1-3 zuwa 24-48 hours.
Matakin raguwa yana faruwa bayan ƙarshen farauta kuma ana nuna shi ta hanyar raunanawa da kuma dakatar da alamun damuwa, maido da ci, da kuma mummunan ra’ayi ga boar bincike. A wannan lokacin, aladu suna da halin rashin tausayi, halin “barci”. Suna yin karya da yawa, ba tare da son rai ba, suna tafiya a bayan garke.
A wannan mataki, kumburin kyallen jikin gabobin al’aura na waje yana ɓacewa, vulva yana wrinkled kuma ya ja da baya. An danne madauki na al’aura sosai, ana shigar da madubin farji a cikin al’aurar da kyar. A madadin follicle ovulated, corpus luteum yana tasowa a cikin ovary. Lokacin ƙarewar sha’awar jima’i yana ɗaukar kwanaki 5-7.
Matsayin ma’auni halin rashin estrus da farauta. Shuka yana kwantar da hankali, baya amsawa ga boar. Tsawon lokacin barci shine kwanaki 9-10, wani lokacin har zuwa kwanaki 14.
Kuna iya yin alamar shafi wannan shafi
