The comparative analysis of egg hatching rate between 野生與人工飼養(yǎng)條件下花尾榛雞卵孵化率的比較
Effect of different ecological factors on ricefield eel monopterus albus hatching rate 不同生態(tài)因子對(duì)黃鱔受精卵孵化率的影響
It is shown from the comparisons between hatch times , hatch rates , abnormal rates and activities in different conditions that temperature has significant effects on the hatch of fertilized eggs 通過(guò)對(duì)孵化時(shí)間、孵化率、初孵仔魚畸形率、活力的比較,發(fā)現(xiàn)溫度對(duì)受精卵的孵化影響顯著。
The hatching rate of the gynogens with the cold shock was higher than that of the untreated gynogens . all the gyngens with and without cold shock were examined to be diploid females with 100 chromosomes , providing the evidence that the females of the tetraploid population are homogamety ( xxx ) 冷休克處理和未冷休克處理的雌核發(fā)育魚均是二倍體( 2n = 100 )的雌魚,這證明了異源四倍體螂鯉是雌性的性別決定類型屬于xxxx類型。
The eggs were put in an incubator filled with sand collected from their birthplace and kept at 28 to 30 degrees celsius . after two months of incubation , 85 of the 121 eggs collected hatched out baby turtles , giving a hatching rate of over 70 per cent . " the new - born turtles were about 23 grams in weight and five centimetres in carapace length 漁護(hù)署護(hù)理員將該窩為數(shù)一百二十一只的海龜?shù)胺胖迷跀?shù)個(gè)籃內(nèi),鋪上從深灣取來(lái)的沙,再放進(jìn)人工孵化箱中,孵化箱的溫度須保持在攝氏二十八度至三十度,兩個(gè)月后,成功孵出八十五只小海龜,孵化率超過(guò)七成。