The difference between china poultry industry and international standard is becoming smaller and smaller in breeder,disease control,nutrition and technique after rapid development in china ,but the difference is still big on poultry house environmental control,The effection of house environment improvement on chick health and performance is overlooked . Poultry house environmental control is becoming more and more important in poultry industry.

隨著近年來養(yǎng)雞業(yè)的迅猛發(fā)展，目前我國在品種、營養(yǎng)、疾病控制和飼養(yǎng)技術(shù)方面與國際先進(jìn)水平的差距逐漸縮小，但在環(huán)境控制方面還存在著很大的差距成年人黄色视频网站，環(huán)境控制對(duì)家禽生產(chǎn)的影響一直沒有得到應(yīng)有的重視，在國內(nèi)目前基本解決了家禽良種引進(jìn)色男人在线视频、烈性傳染病控制人妻精品久久无码专区久久、營養(yǎng)和飼養(yǎng)技術(shù)等問題的前提下，雞舍環(huán)境控制在家禽生產(chǎn)中起著非常重要的作用国产精品玖玖玖玖玖玖玖。

While I was performing the twenty-year task of research. chick I had undertaken at Mr.

我應(yīng)卡內(nèi)基先生的請(qǐng)求国产在线观看免费黄91网站，做這20 年研究工作期間，分析過不下數(shù)百位士紳名援

This tiny tern chick bit off more than he could chew after trying to swallow his enormous fish supper in one gulp...

這只燕鷗小寶寶想把它的晚餐一口吞下去一区二区网站，可是這一口咬得太大国产黄片视频在线免费视频观看，根本吞不下操爽一级视频网站。。日本欧美最新在线一区二区色。超碰人人人人人人人操。。三级黄片抠屄免费观看视频。

No hen gets to run, build a nest, enjoy a cleansing dust bath, protect a chick, forage in the sun, perch, fly, or even lift a wing.

不能走跑404黃色網站免費看，或建立一個(gè)巢，或享受用泥土來洗澡人人插人人操，或保護(hù)了雛雞狼友视频在线播放网，或在陽光下找東西吃，也不能飛99色在线视频观看，或甚至伸展翅膀亚洲精品揄拍自拍首页手机。

Based on the mechanism, It provided with hatchery the optimum storage conditions including the optimum storage temperature, humidity ,egg storage position, storage duration, airtight gas-control environment to keep hatching-eggs quality which make sure highest hatchability and chick-quality being achieved

如何創(chuàng)造最佳的貯存條件是保存種蛋質(zhì)量的關(guān)鍵，本文揭示了最佳貯存條件的機(jī)理與蛋白質(zhì)量国产在线视频一区二区、蛋白pH緊密相關(guān)aigao在线，基于該機(jī)理，本文為孵化廠提供了保持種蛋質(zhì)量的最佳保存條件黄色片视频在线免费观看在线小影院，包括：最佳貯存溫度黄片成人片免费、濕度、種蛋貯存位置日韩国产区、貯存期以及密閉的氣體控制環(huán)境欧美人人做人人爱，以確保達(dá)到最高的孵化率及雛雞質(zhì)量。

However, at sight of his awe-inspiring face, I felt as if he were my stern-faced father-in-law. I could do nothing but nod my head like a chick pecking at rice.

然而亚洲天堂国产制服，面對(duì)主任那威風(fēng)凜凜的&公公&臉欧美一区二区激情，我只得如小媳婦般將頭點(diǎn)得如雞啄米似的。

In this paper, a self-adjustable expert fuzzy controller is presented to control drop seabed self propelled tracked mining chick to follow specified path.

針對(duì)這種復(fù)雜控制過程国亚洲视频，采用一種基于自修正專家模糊控制的路徑跟蹤控制方案www.1025毛片永久免费基地，控制深海履帶車行走。

We still have the problem of explaining how a white chick from Jersey...

我們還是無法解釋為什么一個(gè)來自澤西的白人女性五月天亚洲综合在线电影。国产精品91av日韩经典。。

Chick embryos inoculated with sporozoites of E. tenella were used as a model for testing the activity of Bt crystal proteins.

用雞胚感染柔嫩艾美耳球蟲子孢子作為蘇云金桿菌晶體蛋白抗球蟲活性測(cè)定的模型精品欧美视频在线观看视频。

Think about a candlelight dinner, or a walk on the beach by moonlight, or a romantic chick flick.

設(shè)計(jì)一次燭光晚餐国产免费观看黄页影视网站在线观看，一次月光下沙灘上的散步，或者一場(chǎng)浪漫的黄色在线看片黄色在线看片、催人淚下的電影吧女人一级A片免费视频。