macrobrachium rosenbergii造句
例句與造句
- effect of salinity on oxygen consumption and nh3-n excretion of macrobrachium rosenbergii
鹽度對羅氏沼蝦代謝率的影響 - comparison of muscle nutritional composition of three different populations of macrobrachium rosenbergii
羅氏沼蝦三群體間肌肉營養(yǎng)品質(zhì)的比較 - effects of dietary protein sources on growth and activities of digestive enzymes of giant freshwater prawn macrobrachium rosenbergii
豆粕替代魚粉對羅氏沼蝦生長和消化酶活性的影響 - effect of ambient temperature on heart rate and tissue magnesium concentration between macrobrachium rosenbergii and macrobrachium nipponese
水溫對羅氏沼蝦和青蝦心率及組織中鎂的影響 - spermatogenesis macrobrachium rosenbergii during spermatogenesis, chromatins keep on condensing until mid-spermatid stage . the nucleus changes into two forms : fibrous and homogeneous forms
精子發(fā)生羅氏沼蝦精子發(fā)生過程中染色質(zhì)凝集程度逐漸增大，至精細胞中期凝集程度達到最大。 - It's difficult to find macrobrachium rosenbergii in a sentence. 用macrobrachium rosenbergii造句挺難的
- several attempts have been made to utilize modern transgenic techniques to express afps genes in frost-susceptible animals and crops to increase their freezing tolerance, and it has been reported that some transgenic organisms do acquire increased cold-resistance . the giant freshwater pravm ( macrobrachium rosenbergii ) is of great economic value and cultured around the world . this prawn has been popular in chinese mainland due to its delicious taste and abundant nutrition since it was introduced here
羅氏沼蝦(giantfreshwaterprawn，macrobrachiumrosenbergii是一具高蛋白、低脂肪、在全球范圍內(nèi)都有養(yǎng)殖記錄的重要水產(chǎn)品種，深受人們喜愛，但由于屬熱帶、亞熱帶種類，對低溫的適應能力較差，低于14就會死亡，最低要18才能生長，其不耐低溫的特性大大增加了其養(yǎng)殖成本，嚴重阻礙了羅氏沼蝦養(yǎng)殖業(yè)的發(fā)展。 - spermal ultrastructure the sperm ultrastructure of the macrobrachium rosenbergii and exopalarmon carinicanda holthuis analogical, the whole sperm looks like a inversed umbrella, it has a main body, a spike and a little bit cytoplasm . there are some vesicle exist in the m . rosenbergii sperm nucleus . the relatively length of the spike of the e
各種細胞器數(shù)量在精子發(fā)生過程中逐漸增多，其中內(nèi)質(zhì)網(wǎng)以粗面內(nèi)質(zhì)網(wǎng)為主，線粒體于初級精母細胞階段始出現(xiàn)，膜輪結構在次級精母細胞中出現(xiàn)，精細胞早期的上述細胞器分化成電子密度高的前頂體腔，并逐漸分化形成方形頂體。