When raising lambs, it's essential to start feeding them early during the lactation period, especially for goats, which may have limited feeding capacity. Ensuring they develop good eating habits from the beginning is crucial. Therefore, the feed selected should be highly palatable and of high quality to encourage consumption.
Weaning time can be adjusted based on the lamb’s ability to eat. Lambs should be weaned when they can consume 70 to 80 grams of concentrate daily. To minimize stress during the transition, water and grass should be removed a day before moving them. An overnight fast is recommended to reduce digestive issues. The next day, lambs should be transported as soon as possible, avoiding feeding on the fattening site. Only clean water and a small amount of hay should be provided to help them rest quietly. Avoid any disturbances, then weigh the lambs, administer four-way vaccines, and apply insect repellent.
Once the fattening process begins, regardless of the method used, a pre-feeding transition period is necessary. For moderate fattening, this transition is divided into two stages: the first stage (days 1–3) involves only hay to help lambs adapt to the new environment. The second stage (days 7–10) includes 70% hay, 25% corn kernels, 4% soybean meal, and 1% salt.
For intensive fattening, the transition is split into three stages: the first stage (days 1–3) consists of only hay. The second stage (days 7–10) includes 25% corn kernels, 64% hay, 5% molasses, 5% soybean meal, and 1% salt. The third stage (days 11–14) increases the grain content to 39% corn kernels, 50% hay, 5% molasses, 5% soybean meal, 1% salt, and adds 35 mg of antibiotics per head. These rations should be fed twice daily, ideally within 40 minutes per session. Feed formulations can also be adjusted based on local availability of resources to ensure optimal growth and health.
The valve stem is an important part of the valve.
It is used to drive, connect the actuating mechanism or handle, and directly
drive the spool to move or rotate, so as to realize the function of valve switch
or regulation.Valve stem in the valve opening and closing process is not only
moving parts, stress components, but also seals. At the same time, it is
subjected to the impact and corrosion of the medium, and it also causes friction
with the packing. Therefore, in selecting the stem material, it must be
guaranteed that it has sufficient strength at the prescribed temperature, good
impact toughness, scratch resistance, corrosion resistance. The valve stem is a
vulnerable part, and the mechanical performance and heat treatment performance
of the material should be paid attention to when selecting.The valve stem in the
valve opening and closing process, under tension, compression and torsion force,
and direct contact with the media, as well as the relative motion between the
friction and filler, so in the choice of stem material, must ensure that it
provides adequate temperature strength, good impact toughness, abrasion
resistance and corrosion resistance of.
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