Cultivation of fattening lambs
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The gestating ewes generally do not require high levels of nutrients during the early stages of pregnancy, as fetal growth is relatively slow. During the grazing season, they can often meet their nutritional needs through natural forage without additional feeding. However, during the dry season, it's advisable to provide them with straw or hay to maintain their energy levels. As the pregnancy progresses into the late stage, the fetus grows rapidly, so it’s important to ensure a balanced and nutrient-rich diet. In addition to regular grazing, feed them 1–1.5 kg of hay, 1.5 kg of silage, and 0.45 kg of concentrate daily. The concentrate should include cornmeal, soybean meal, bone meal, or shell powder, along with salt, vitamins, and minerals. Encourage moderate exercise and allow them to sunbathe regularly. Always provide clean, fresh water and keep their living area clean, dry, and well-ventilated. Ensure the sheep shed is warm in winter and cool in summer.
For nursing ewes, feeding strategies vary depending on whether they are raising one or two lambs. Ewes with twins receive 0.6 kg of concentrate daily from February to March postpartum, and 0.4 kg per day from April onward. Single-lamb ewes get 0.5 kg of concentrate between February and March, and 0.3 kg after April. For twin lambs, supplement with 1 kg of high-quality hay, while single-lamb ewes should be given 1 kg of a mix of high-quality hay and wild grass. During late lactation, continue grazing but occasionally offer some hay and provide concentrate every few days to support milk production.
During the lambing period (birth to 10 days old), the birthing area should be clean, dry, and sheltered from wind. Maintain a temperature above 8°C and ensure good ventilation. Lambs must consume colostrum within the first hour of birth. If a lamb is weak or if there are multiple births, assist with artificial feeding twice a day. From day 11 to 30, start introducing forage to help develop the rumen and digestive system. By day 10, introduce a small amount of concentrate feed made from 20% soybean meal, 25% bran, 52% corn, plus 0.5% salt and trace minerals. Feed this as boiled porridge, starting with 50–75 grams per day and gradually increasing. At 20 days old, begin offering small amounts of peanuts, eucalyptus leaves, or other forage.
From day 31 until weaning, allow lambs to graze with the flock to build their foraging skills. Avoid overfeeding green feeds with high moisture content, as this may hinder rumen development. Keep an eye on their health and adjust feeding based on individual growth and condition.