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產(chǎn)上的應(yīng)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活性以及肝臟MT基因相對(duì)表達(dá)豐度均可評(píng)估雞體內(nèi)鋅的營(yíng)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(duì)147—300日齡白來(lái)航型星雜288產(chǎn)蛋母雞用三年時(shí)間進(jìn)行了鈣磷水平對(duì)蛋殼質(zhì)量影響的試驗(yàn)。