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Lamb fattening methods vary and include grazing, confined feeding, or a combination of both. When conditions allow, raising lambs in groups can improve management efficiency and enhance growth outcomes. The choice of fattening method depends on local resources such as pasture availability, feed supply, labor, and economic factors. It is essential to select the most suitable and cost-effective approach based on the specific circumstances of each farm.
When selecting lambs for fattening, their quality plays a crucial role in determining the success of the process. Healthy lambs with normal growth patterns are ideal candidates. Lambs at the end of lactation, especially those that have been weaned or are about to be weaned, are often preferred because they adapt more easily to new environments and feeding routines. To ensure high-quality lambs, proper care should begin during the last months of the ewe’s pregnancy, aiming for a weaning weight of 20–30 kg by four months of age. This provides a strong foundation for post-weaning growth.
The timing of lamb fattening should be planned strategically to maximize economic returns. Starting in late spring or early summer allows lambs to benefit from the abundant and nutritious forage available during summer and autumn. This not only reduces feeding costs but also promotes faster weight gain. Slaughtering around the Mid-Autumn Festival and National Day periods ensures a strong market demand, higher prices, and better profitability.
Before starting the fattening process, several preparations are necessary. These include ensuring adequate feed supplies, proper housing, feeding equipment, trained staff, and sufficient funds. Additionally, lambs should be weaned and acclimated to solid feed before the fattening period begins. They should also undergo health checks, vaccinations, deworming, and castration if needed. Encouraging social behavior through group grazing and feeding helps them adjust more smoothly to the new environment.
Fattening management is typically divided into three stages: early, mid, and late. During the early stage, the focus is on monitoring lambs’ adaptation to the new routine, checking for signs of illness, and ensuring normal feed intake. Adjustments to feeding schedules and rations may be necessary. In the mid-stage, the amount of supplementary feed increases, with a greater emphasis on protein-rich diets to support growth. Finally, in the late stage, energy-dense feeds are introduced while reducing protein content slightly to improve meat quality. Feed quantities should be adjusted based on the lambs’ weight and growth progress.
Throughout the entire fattening period, it's important to regularly monitor the health and weight gain of the flock. Any changes in behavior, appetite, or condition should prompt immediate adjustments to the feeding plan or management practices. This proactive approach ensures optimal growth and maximizes the overall success of the lamb fattening operation.