Kazakh cattle
The forehead is slightly sunken, the skull is flat and slightly concave, the angle is curved to the upper side, the tip of the horn is semi-oval inward, and the horniness is meticulous. The neck is thin, medium-long, and the flesh is underdeveloped. Lower, tail hair
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How to treat Haemophilus parasuis secondary to Porcine Influenza
Porcine influenza is an acute and highly contagious disease of pigs, which is characterized by sudden onset and rapid spread of the whole herd. The main symptom is upper respiratory tract infection, which usually occurs in winter and spring and sudden climate change. The disease is also often secondary to Haemophilus parasuis. The incidence of the disease is more than 40 pigs raised by Yang in Baimaqiao Township, Xiangning County, Shanxi Province, including 18 fattening pigs, 11 shelf pigs and the rest are son pigs. Because the livestock owner adopts the method of hogwash breeding, the breeding is not perfect.
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Effect of Light on Pigs
The light of piggery can be divided into natural light and artificial light according to different light sources. Natural illumination means that direct and scattered light from the sun enter the pig house through transparent structures such as doors and windows. Visible light accounts for 50% of the solar spectrum, and the remaining 50% is mostly infrared light and a small amount is ultraviolet light. The natural light of the pig house is generally expressed by the ratio of the total area of the pig house that can be transparent to the ground area of the house, which is called the lighting coefficient. Artificial lighting is illuminated by artificial light sources (incandescent or fluorescent lamps, etc.). Infrared light accounts for 60% of the spectrum of incandescent lamps.
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