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新疆調整普氏野馬核心繁殖群 打造優(yōu)良種源基地

2020-06-03 08:13來(lái)源：新華網(wǎng)

6月2日，在新疆野馬繁殖研究中心，還沒(méi)滿(mǎn)月的小馬駒在吃奶。

普氏野馬是目前全球唯一存活的野生馬種。眼下，位于新疆昌吉的新疆野馬繁殖研究中心正在調整野馬核心繁殖群，打造優(yōu)良種源基地。近年來(lái)，新疆野馬繁殖研究中心原有的5個(gè)繁殖群部分野馬達到或超過(guò)16歲，超出繁殖黃金年齡，近親繁殖會(huì )帶來(lái)野馬發(fā)育緩慢、畸形、適應性下降、繁殖力減弱等問(wèn)題。對此，研究中心以降低野馬近交系數為原則，綜合野馬個(gè)體適應能力、繁殖能力、年齡結構、雌雄比例、譜系關(guān)系等因素，對現有種群進(jìn)行調整，建立野馬核心繁殖群和放歸群。同時(shí)，研究中心將推動(dòng)野馬人工授精和種馬引進(jìn)等國際合作，改善圈養野馬種群近親繁殖狀況。新華社記者丁磊攝。

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