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
唐縣藝都雕塑工藝品制造有限公司
主營產(chǎn)品: 金屬工藝品
故宮銅獅子公司-藝都雕塑-大型故宮銅獅子鑄造廠
價(jià)格
訂貨量(件)
¥8600.00
≥1
店鋪主推品 熱銷潛力款
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這個(gè)“優(yōu)勢”的概念延伸到不同物種時(shí),在能夠雜交的物種之間,它們的雜交優(yōu)勢也是非常明顯的,但有一個(gè)代價(jià),染色體不能全部聯(lián)會重合。但馬和驢剛好能重合,所以騾子吸收了它們雙方的優(yōu)點(diǎn)。 [9]
實(shí)際上老虎和獅子也存在著這個(gè)趨勢,獅虎獸個(gè)體都比較大,也很強(qiáng)壯,但由于它 遺傳基因在染色體數(shù)量上的不匹配性,它們有嚴(yán)重的遺傳基因缺陷,這些缺陷導(dǎo)致有的個(gè)體壽命比較短,有的個(gè)體長得不好。 [9]
不同物種之間的雜交,由于其淵源程度比較遠(yuǎn),如果能存活,往往能吸收雙方的優(yōu)點(diǎn),但由于染色體數(shù)目不同,不同物種帶有天生的缺陷,在馬和驢這一點(diǎn)上,強(qiáng)壯這一點(diǎn)得到體現(xiàn),絕育這一點(diǎn)不可避免。在獅虎的問題上,強(qiáng)壯這一點(diǎn)有的個(gè)體體現(xiàn)了,有的個(gè)體體現(xiàn)得比較弱,它們本身能不能存活情況各不一樣,我們也看到過有存活十幾年的獅虎獸,這表明它們還是能存活的。 [9]
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Karanth(1993)在納加爾霍雷公園稱重的3頭大雄虎,重246(230-257)kg,但這是飽腹?fàn)顟B(tài)下稱重的;扣去胃容物后,3頭雄虎重217(209-227)kg。捕獲到的雌虎僅1頭,重177kg;沒有告知胃容物重。
很多朋友認(rèn)為,北部孟虎的體型大于中部,中部又大于南部。實(shí)際情況可能并非如此。
(4) 沼澤虎
孫德爾本斯的孟虎體型遠(yuǎn)小于其他地區(qū),Chattopadhyay(2008)曾報(bào)導(dǎo)過一頭雄虎重150kg, Kundu(2010)稱重的2頭雄虎重98\118,上述3頭雄虎平均重122kg。而Barlow(2009)稱重的3頭雌虎重76.7(75-80)kg。
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