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Grazing method for producing mutton rich in natural DHA

A mutton, natural technology, applied in the field of sheep feeding and grazing management, to achieve the effect of simple and easy technical solution, less manpower and facility investment, and improved sedimentation

Active Publication Date: 2016-01-27
GRASSLAND RES INST OF CHINESE ACAD OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is known that due to the cumulative effect of water loss and photosynthesis, the nutrients (such as soluble sugars, secondary metabolites, etc.) provided by forage grass in a day will show essential differences due to differences in temperature and humidity ( Gregorini et al., Toughness, particle size and chemical composition of meadow fescue (Festu capratensis Hud.) herbagea affected by time of day. Animal Feed Science and Technology, 2009, 151 (3 / 4): 330-36)

Method used

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  • Grazing method for producing mutton rich in natural DHA
  • Grazing method for producing mutton rich in natural DHA
  • Grazing method for producing mutton rich in natural DHA

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Embodiment 1

[0021] The grazing site is located in Dazi Township, Linzhou County, Lhasa City. It belongs to the alpine meadow steppe with a warm and semi-arid climate. The edible vegetation consists of white grass, Kobresia alpine, Carex Qingzang, Carex white tip, Artemisia tibetanus, and Astragalus astragalus , Duyiwei, Long Miscanthus, Zangbu San Misang, Honey Flower Trichosanthes, Erect Plum, Black Spike Teff, Lhasa Dog Wa, Tibetan Dandelion and Dingzhu Potentilla.

[0022] 24 weaned, healthy 3-month-old Tibetan lambs were randomly divided into 3 groups: 4-hour grazing group in the morning (4hAM group, control group), 4-hour grazing group in the afternoon (4hPM group), and 8-hour grazing group in the morning and afternoon ( 8h group), there was no significant difference in average body weight among the groups. The trial started in July and ended in October. During the whole test period, the 4hAM group went out to pasture at 9:00 am and returned to pasture at 1:00 pm every day; the 4hPM...

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Abstract

The invention belongs to the field of animal husbandry, and provides a grazing method for producing mutton rich in natural DHA. According to the method, sheep are grazed in different periods of time and are grazed continuously for 3-5 hours every afternoon, different supplementary feeding is provided in different seasons, and the grazed sheep are preferably Tibetan sheep. The technical scheme of the invention is low in cost and simple and easy to implement, only involves grazing time and simple supplementary feeding, needs small investment in manpower and facilities, avoids the use of any additive, and is not subject to regional restriction. The method is especially applicable to the pastoral areas in the Qinghai-Tibet plateau and the agriculture-nomad areas, and is a win-win method which not only can improve the precipitation amount of DHA and EPA (eicosapentaenoic acid) in mutton, but also can reduce the livestock carrying pressure on the grassland.

Description

technical field [0001] The invention belongs to the field of animal husbandry, and in particular relates to a sheep feeding and grazing management method. Background technique [0002] With the acceleration of the pace of modern life, patients with high-risk diseases such as cancer and heart disease are becoming younger, which has stimulated people's strong demand for health food. DHA (docosahexaenoic acid), commonly known as brain gold, belongs to the n-3 series of highly polyunsaturated fatty acids (n-3PUFA), and plays a very important role in maintaining human health. DHA is an important constituent of the brain and retina, accounting for up to 20% and 50% of the human cerebral cortex and retina respectively. At the same time, DHA also has functions such as anti-cancer, anti-inflammation, prevention of cardiovascular diseases, and improvement of senile dementia. Therefore, the research and development of foods rich in DHA ingredients has very important significance and ...

Claims

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Application Information

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IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 张晓庆武俊喜金艳梅李鹏赵海霞
Owner GRASSLAND RES INST OF CHINESE ACAD OF AGRI SCI
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