Captive sheep breeding techniques
Farmers, such as raising sheep, can solve the increasingly prominent contradictions in agriculture and animal husbandry, and can open up forage resources to make comprehensive utilization of crop stalks and reduce the environmental pollution caused by the burning of straw. Compared with grazing, sheep grow fast and slaughter early. , good sensation, high meat yield, good economic returns. Its specific approach is:
First, sheep house construction: sheep house can be built into a single slope or closed type. The single-slope, canopy-style general back wall has a height of 1.8 meters and a roof inclination of 15 degrees. The closed wall is 2.3-2.5 meters high and the door is 1.5-2 meters wide. The sheep house floor is 20-30 centimeters higher than the ground outside the house and is paved with slopes for drainage. General adult sheep account for about 1.5-2 square meters each. The area occupied by pregnant ewes, nursing sheep, and breeding rams is slightly larger. Houses should be kept dry and ventilated, and should be kept warm in winter and cool in summer.
Second, roughage production.
1, straw silage. The harvested corn stalks were cut down and dried for one day, and were smashed into sub-sections of 0.5-2 cm after silage.
2, microbial fermentation. Use "Baibaoli" or "EM bacteria" to make fermented strains, spray wet mixed straw crops or agricultural and sideline products such as wheat straw, corn stalks, peanut pods, peanut shells, corncob powder, etc. Or plastic bags sealed, after anaerobic fermentation, you can eat.
Third, feeding methods. Put silage corn stalks or fermented feed into the feeding trough to allow the sheep to feed freely, and feed it twice a day. The water in the trough can not be cut off. Pay attention to changing the water every day. At the same time, according to the different growth stages of the sheep, the concentrates are properly supplemented. The proportion of forage straw and fine material used for fattening sheep straw was 4:1, that of gravid sheep was 5:1, and that of rams was 4:1.
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NVR has different product forms. Although its core function is the capture, storage, management and forwarding of network video streams, different companies have different designs to complete these functions and have their own characteristics. There are mainly three types of NVR products.
The first is the PC server based NVR software product (Software Only), that is, the manufacturer provides the NVR software plus license mode, which can be installed on any standard PC or server that meets the requirements.
The second is the NVR overall solution of software and hardware integration provided by the manufacturer, that is, the manufacturer installs the NVR software on its customized PC server, which is the so-called Turnkey Solution product.
The third is embedded NVR products, namely embedded devices based on embedded hardware platforms and operating systems; In addition, there are storage management integrated devices developed by storage device manufacturers, which are not the mainstream NVR form.
In terms of stability, although the reliability of PC based NVR system is not as high as that of embedded NVR system, compared with PC based DVR system, the PC based NVR system has relatively simple functions, fewer failure links and better stability than PC based DVR system.
In terms of scalability, as the PC based NVR system is based on the general PC platform and the general operating system, its hardware interface is universal, open and standardized, which is easy to be compatible with other hardware, and software development is also relatively convenient. However, due to the high hardware integration, single interface, poor compatibility with other hardware, and weak incidental functions of embedded software, the secondary development of embedded NVR is relatively complicated.
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