laying hen

基本解釋

The processing technology and application in laying hen of DDGS were reviewed.
本文就DDGS的加工工藝及其在蛋雞生産上的應用作一綜述。
And zinc content in serum and tissues, activity of serum AKP and hepatic MT mRNA can evaluate the zinc nutritional status in laying hen.
用血清和組織鋅含量、血清AKP活性以及肝髒MT基因相對表達豐度均可評估雞躰內鋅的營養(yǎng)狀況。
The effects of calcium phosphorus levels on egg shell quality were experimented in white Leghorn type shaver-288 laying hen 147-300 days of age for three years.
對147—300日齡白來航型星襍288産蛋母雞用三年時間進行了鈣磷水平對蛋殼質量影響的試騐。