91亚洲精品无码成人久久久,caoporn视频

News title：The influence of temperature on pig raising

In modern pig industry, even if all kinds of cold and heatstroke prevention designs are adopted in pig house design and construction, it is still not enough to obtain the appropriate temperature of pi...

2017-10-20

News title：How to improve the utilization efficiency of animal feed

The first task of pig farm is to improve the economic efficiency and production efficiency. It is an important measure to select the advanced and economic pig raising equipment which is suitable for t...

2017-10-17

News title：How to nurse sow delivery room in pig farm

The application of modern technology and modern management measures in pig raising equipment can make pig industry produce in an industrial way, provide suitable conditions for the growth and developm...

2017-10-16

News title：Advantages and automatic control of temperature regulating equipment of pig raising equipment

With the development of the pig industry, the traditional single circle, individual feeding has not been able to adapt to the development of society, can not drive the improvement of productivity, peo...

2017-10-15

News title：There is a reason for the rapid development of pig raising equipment

Pig raising equipment plays an important role in large-scale pig raising. The reasonable application of the equipment can create a comfortable and safe growth environment for pigs, reduce external adv...

2017-10-13

News title：It is necessary to keep the pig equipment clean

In the past, the traditional family pig breeding equipment used to raise whatever kind of pig it had, but it didn't pay much attention to the breeding of excellent breeding pigs. However, in order to ...

2017-10-12

News title：Safety tips for prevention of swine disease

豬病的種類很多，有時(shí)候發(fā)病率和死亡率很高，甚至涉波及全群，嚴(yán)重影響?zhàn)B豬業(yè)的發(fā)展，給養(yǎng)殖戶造成巨大的經(jīng)濟(jì)損失。為了預(yù)防和消滅豬的疫病，保護(hù)豬群正常生產(chǎn)，促進(jìn)養(yǎng)豬業(yè)的發(fā)展，保證人民的健康，必須堅(jiān)持預(yù)防為主的方針，配置合理使用養(yǎng)豬設(shè)備 2017-10-11

News title：What should be paid attention to when raising pigs in autumn

At present, it has entered the autumn. The management of pig raising in autumn is mainly for preparing for winter production, reducing the incidence rate of pigs, and improving the economic benefits o...
2017-10-10

All 28 Pages Current24/28Pages [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28]

色情午夜 码一区二区,江苏少妇性BBB搡BBB爽爽爽,亚洲视频中文字幕,麻豆一级A片久久久乱码

色情午夜码一区二区,江苏少妇性BBB搡BBB爽爽爽,亚洲视频中文字幕,麻豆一级A片久久久乱码