繁殖年齡 的英文怎麼說
中文拼音 [fánzhíniánlíng]
繁殖年齡
英文
breeding age-
The vegetative tiller can produce more buds than the reproductive tiller on hordeum brevisubulatum population, and the age structure of bud from either vegetative tiller or reproductive tiller is an increasing model
野大麥種群營養蘗分蘗節的營養繁殖力比生殖蘗強，營養蘗和生殖蘗上芽的組成亦均為明顯的增長型年齡結構。The tiller - nodes of 6 species of rhizome grass, including leymus chinensis, hemarthriajaponica, arundinella hirta, calamagrostis epigeios, c. rigidula, hordeum brevisubulatum in songnen plain, can live at best for 2 to 5 years, and do 2 to 4 propagating generations which is the same as the age class of tiller in number. the age structure of population is an increasing model which the young tiller is more than the old at quantity and biomass. during the whole growing season, the age spectrum varies for each species
松嫩平原，羊草、牛鞭草、野古草、拂子茅、硬拂子茅和野大麥等6種根莖型禾草種群的分蘗節最多可以存活2 5個年度，可以進行營養繁殖2 4個世代，分蘗株的齡級數與分蘗節營養繁殖的世代數相同，在種群分蘗株的數量和生物量上，生長季的各個時期均以幼齡分蘗株占較大比例，呈現為明顯的增長型年齡結構，各種類的年齡譜組成各異。This paper dealed with the annuli characteristics, age, growth, reproduction strategies and histology of the gonad development of spawning stocks for g. przewalskii
本文研究了青海湖裸鯉繁殖群體的年輪特徵、年齡、生長、繁殖對策和性腺組織學。結果如下： 1Our findings about reproductive biology are still limited, but they indicate that females have their first foal at five or six years of age, rather than the more common four or five years, and then may give birth every other year
對于非洲野驢的繁殖，我們的研究仍然有限，但是已經觀察到雌驢產下第一胎的年齡，並非一般常見的4 ~ 5歲，而是在5 ~ 6歲左右，之後則是每隔一年生產一次。" they used to live to around the age of 50, so that was not a great problem
他們通常的壽命有50年，但現在他們還沒到繁殖年齡的一半就已經被殺死了。The three spawning stocks had no significant differences in mean body length, mean body weight and mean age
三個繁殖群體的平均體長、平均體重和平均年齡差別不大。An increasing age structure of tiller or bud in the population indicates that the young tillers or buds have taken the predominate status, thereout the population is kept in the " young " period. it is a propagating mechanism to maintain population " forever " existing
在種群中分桑株和芽的增長型年齡結構意味著幼齡分桑株和幼齡芽占優勢地位，由此可保持種群始終處于「年輕」階段，是種群維持「永久」生存的繁殖機制。According to measured data, testis sizes from animals captured in september 2000 were different remarkably from that in april and july 2001, and not differences among their age groups, which was indicated that l. lagurus in september 2000 did not have reproductive abilities. by use the same method, we have observed that l. lagurus in april 2001 and groups from - age and - age ( old ) in july 2001 have reproductive abilities. in addition, the reproductive ability from the - age group in july 2001 was intermediated between the groups in september 2000, - age group in april and - age group in july 2001
我們對不同時間參與繁殖的雄鼠睪丸大小的測定結果表明， 2000年9月雄鼠睪丸大小與2001年4月和7月的有顯著性差異，表明2000年9月草原兔尾鼠雄鼠進入繁殖休止期； 2001年4月種群中齡和齡雄鼠睪丸大小無顯著性差異，與2001年7月的相比有顯著性差異，但與2001年7月種群的齡鼠和齡鼠的相比無顯著性差異，表明2001年4月和2001年7月種群的齡和齡草原兔尾鼠雄鼠具繁殖能力； 2001年7月的齡雄鼠睪丸大小與2000年9月的有顯著性差異，表明該時期齡雄鼠的繁殖力介於2000年9月種群和2001年4月和7月種群的齡鼠和齡鼠之間。The studies on the age structure, food items and spectrum, sleeping site selection, reproductive ecology, daily activity and yearly wandering pattern were conducted with tracking and observing methods in xiaoshennongjia district, hubei province within october, 2000 to june, 2002. the main conclusions from this research are as follows. 1
為此， 2000年10月2002年6月，我們對棲息于湖北小神農架地區的川金絲猴種群通過跟蹤觀察在年齡組成、食物資源與食性、夜宿地點及選擇、繁殖生態、活動規律和游蕩模式等方面進行了初步研究，結果如下： 1分享友人