雞多不下蛋 的英文怎麼說

中文拼音 [duōxiàdàn]
雞多不下蛋 英文
too many hens won't lay
  • : (家禽的一種, 也叫家雞) chicken
  • : 名詞[書面語] (剁物所用的木墩) a block of wood
  • : 下動詞1. (用在動詞后,表示由高處到低處) 2. (用在動詞后, 表示有空間, 能容納) 3. (用在動詞后, 表示動作的完成或結果)
  • : 名詞1. (鳥類或龜、蛇類所產的卵) egg 2. (像蛋形的東西) an egg-shaped thing 3. (辱罵之詞)
  1. In young chickens aev induces paralysis, ataxia and muscular dystrophy, while in older chickens, infection is usually subclinical, resulting in a decline in egg production and hatchability. infectivity was shown to remain unaffected by chloroform, low ph, pepsin, trypsin and deoxyribonuclease. magnesium cations were shown to stabilise preparations of the virus against heat inactivation. the buoyant density of virions are 1. 31g / ml. the diameter of the virion was estimated to be 22 to 30nm. the aev can be adapted to grow in chicken embryo. the inability of aev to grow effeciently in most cell cultures

    感染該病毒后,引起麻痹、頭頸震顫甚至共濟失調,而成常呈亞臨床感染或導致產量和孵化率降。病毒的感染性受氯仿、低ph 、胃白酶、胰酶和脫氧核糖核酸酶的影響,鎂離子可增強病毒對熱的穩定性,病毒的浮密度為1 . 31g ml ,直徑為22 - 30nm ,該病毒主要在胚中增殖,在大數細胞培養物中生長。
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