Plant extract additive for relieving heat stress of broilers and preparation method thereof

Abstract

The invention provides a plant extract additive for relieving heat stress of broilers and a preparation method thereof. The additive is prepared from the following components in parts by weight: 15-30parts of radix astragali, 15-30 parts of Chinese thorowax roots, 10-20 parts of lonicerae flos, 5-10 parts of Chinese magnoliavine fruits, 5-10 parts of eucalyptus leaves, 5-10 parts of tea leaves and 5-10 parts of golden cypress leaves. The preparation method comprises the following steps: dosing materials in the weight part ratio, grinding the radix astragali, Chinese thorowax roots, loniceraeflos, Chinese magnoliavine fruits, eucalyptus leaves, tea leaves and golden cypress leaves, and screening the materials through a screen having 80-100 meshes to obtain mixed powder; preparing a fermentation culture solution having an overall inoculation amount of 8 percent in an inoculation ratio of yeast to aspergillus niger to trichoderma reesei to bacillus subtilis to lactobacillus being 4:2:2:1; dosing the mixed powder and the fermented culture solution in a proportion of 1g/20mL, and performing uniform mixing to prepare a fermentation broth; and concentrating and drying the fermentation broth. The plant extract additive can be used for effectively relieving the heat stress problem of chicken and guarantees the quality of chicken.

Description

technical field [0001] The invention belongs to the technical field of animal feed additives, and in particular relates to a plant extract additive for alleviating heat stress of broilers and a preparation method thereof. Background technique [0002] Heat stress refers to the physiological response of the animal body to the non-specific defense response to the heat stress source. Its essence is the sum of the non-specific responses caused by the ambient temperature exceeding the upper limit temperature of the comfort zone in the thermal zone of the animal. A defensive adaptive response. The isothermal zone of broiler chickens is affected by factors such as age, physiological state, feathers, social status and nutritional status. Generally speaking, the temperature comfort zone of chicks is high and narrow, 34-36°C for 1-3 days old, 32-35°C for 4-7 days old, 28-32°C for 8-14 days old, 15-21 days old The age is 25-28°C, and the temperature is 22-25°C after 22 days of age. ...

AI Technical Summary

Problems solved by technology

Human beings have huge plant resources, and our country alone has more than 10,000 kinds; the existing anti-heat stress Chinese herbal medicine additives are very complicated, and the active ingredients in plants are

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