关键词: 河北省, 河北省

Abstract:

Studies on changes of supplementary feeding of goats, grass-livestock balance and economic benefits of animal husbandry production under different grazing treatments were conducted. The goat supplementary feeding concentrate, its compositions, the costs and goat weights under different grazing rates were measured and the economic benefits of grazing systems were calculated. The lamb daily gains of heavy-and low-grazing after supplementary feeding were 153.8 g and 140.2 g respectively and the difference was significant (P＜0.05). In most cases, there would be overgrazing with heavy-grazing and lack-grazing with low-grazing, resulting in the waste of forage resources. The economic benefits of heavy- and low-grazing were 113315 Yuan and 64590 Yuan, and gross benefits per goat were 2060 Yuan and 1845 Yuan respectively. There was a big difference in economic benefits between heavy- and low-grazing after supplementary feeding.