A kind of live pig healthy aquaculture method
Technical field
The present invention relates to livestock culturing field, especially relate to a kind of live pig healthy aquaculture method.
Background technology
Pig industry is the important industry in China's agricultural.Be supplied with important function to guarantee meat food safety, current China pig industry is just changed to Pig Industry industry by traditional pig industry, is that aquaculture model, Regional Distribution or the mode of production, production capacity are all in generation marked change.Feed accounts for the 70-75% of cost of raising pigs.Feed formula will change along with the change in the market price, season, not unalterable.
Piggy (about 10 ~ 20 kilograms) is filled a prescription: corn flour 57%, dregs of beans 20%, fish meal 5%, rice bran or wheat bran 15%, calcium monohydrogen phosphate 1%, oyster shell whiting 0.5%, salt 0.35%, premix (containing trace element, vitamin, non-nutritive additive etc.) 1%.This thick protein 18.4% of filling a prescription, digestible energy 3230 kilocalorie/kilogram, crude fibre 3.5%, calcium 0.73%, phosphorus 0.682%, lysine 0.92%, indices all meets the diet nutrient needs of piggy, and partially too not high, is the piglet feed nutrient formulation of standard of comparison.
Middle pig (about 20 ~ 60 kilograms) is filled a prescription: corn flour 62%, dregs of beans 20%, rice bran or wheat bran 15%, calcium monohydrogen phosphate 1.2%, oyster shell whiting 0.8%, salt 0.35%, premix (containing trace element, vitamin, non-nutritive additive etc.) 1%.This thick protein 16% of filling a prescription, digestible energy 3180 kilocalorie/kilogram, crude fibre 3.8%, calcium 0.656%, phosphorus 0.577%, lysine 0.74%, the diet nutrient needs of pig during indices all can meet, and partially too not high, be the middle pig feed nutrient formulation of standard of comparison.
Large pig (more than 60 ~ 90 kilograms) is filled a prescription: corn flour 70%, dregs of beans 15%, rice bran or wheat bran 12%, calcium monohydrogen phosphate 1.0%, oyster shell whiting 0.8%, salt 0.35%, premix (containing trace element, vitamin, non-nutritive additive etc.) 1%.This thick protein 14% of filling a prescription, digestible energy 3240 kilocalorie/kilogram, crude fibre 3.7%, calcium 0.60%, phosphorus 0.535%, lysine 0.65%, indices all can meet the diet nutrient needs of large pig, and partially too not high, is the hog grower feed nutrient formulation of standard of comparison.
Summary of the invention
The object of this invention is to provide a kind of live pig healthy aquaculture method, the conversion ratio of feed can be improved, promote pig growth, improve the daily gain of live pig, reduce feed-weight ratio; Improve live pig immunity; Reduce the incidence of disease of diarrhoea; Cultivate out the selenium-rich live pig with outstanding quality and delicate meat.
Live pig healthy aquaculture method of the present invention, carries out free choice feeding, drinking-water, immunity and sterilization feeding and management by pig farm usual manner, the 15-30 kg body weight stage, adopts Basic drawing and little pig feed alternately to feed; In the 30-60 kg body weight stage, Basic drawing and middle pig feed is adopted alternately to feed; In more than 60 kilograms body weight stages, Basic drawing and large pig feed is adopted alternately to feed;
Wherein little pig feed is made up of the raw material of following parts by weight: corn flour 50 ~ 53 parts, dregs of beans 20 ~ 22 parts, rock beans 3 ~ 4 parts, medical stone powder 5 ~ 6 parts, zinc citrate 0.5 ~ 0.6 part, Vitwas E 0.1 ~ 0.2 part, Se-enriched yeast 0.2 ~ 0.3 part, CMC 0.2 ~ 0.3 part, lactobacillus plantarum (Lactobacillusplantarum) 0.1 ~ 0.2 part, lactobacillus curvatus (Lactobacilluscurvatus) 0.1 ~ 0.2 part, lactobacillus gasseri (Lactobacillusgasseri) 0.2 ~ 0.3 part.
Wherein middle pig feed is made up of the raw material of following parts by weight: corn flour 57 ~ 60 parts, peanut meal 18 ~ 20 parts, fish meal 3 ~ 4 parts, Qingqian Willow leaf 2 ~ 3 parts, medical stone powder 4 ~ 5 parts, Herb of Common Nipplewort 6 ~ 8 parts, sand sagebrush seed oil 4 ~ 5 parts, Se-enriched yeast 0.2 ~ 0.3 part, Vitwas E 0.1 ~ 0.2 part, bacillus licheniformis (Bacilluslicheniformis) 0.2 ~ 0.3 part, lactobacillus plantarum (Lactobacillusplantarum) 0.1 ~ 0.2 part, lactobacillus curvatus (Lactobacilluscurvatus) 0.1 ~ 0.2 part, lactobacillus gasseri (Lactobacillusgasseri) 0.1 ~ 0.2 part.
Wherein large pig feed is made up of the raw material of following parts by weight: corn flour 54 ~ 56 parts, peanut meal 16 ~ 18 parts, husked kaoliang 6 ~ 8 parts, fish meal 2 ~ 3 parts, cicada fungus 2 ~ 3 parts, medical stone powder 3 ~ 4 parts, Se-enriched yeast 0.2 ~ 0.3 part, Vitwas E 0.1 ~ 0.2 part, bacillus licheniformis (Bacilluslicheniformis) 0.2 ~ 0.3 part, lactobacillus plantarum (Lactobacillusplantarum) 0.2 ~ 0.3 part, lactobacillus curvatus (Lactobacilluscurvatus) 0.2 ~ 0.3 part, lactobacillus gasseri (Lactobacillusgasseri) 0.2 ~ 0.3 part.
As optimization, this live pig healthy aquaculture method, little pig feed is made up of the raw material of following parts by weight: corn flour 51 parts, dregs of beans 21 parts, rock beans 3.5 parts, medical stone powder 5.5 parts, zinc citrate 0.5 part, Vitwas E 0.12 part, Se-enriched yeast 0.25 part, CMC 0.28 part, lactobacillus plantarum (Lactobacillusplantarum) 0.15 part, lactobacillus curvatus (Lactobacilluscurvatus) 0.15 part, lactobacillus gasseri (Lactobacillusgasseri) 0.25 part, middle pig feed is made up of the raw material of following parts by weight: corn flour 58 parts, peanut meal 19 parts, fish meal 3.5 parts, Qingqian Willow leaf 2.5 parts, medical stone powder 4.5 parts, Herb of Common Nipplewort 7 parts, sand sagebrush seed oil 4.5 parts, Se-enriched yeast 0.25 part, Vitwas E 0.15 part, bacillus licheniformis (Bacilluslicheniformis) 0.25 part, lactobacillus plantarum (Lactobacillusplantarum) 0.15 part, lactobacillus curvatus (Lactobacilluscurvatus) 0.15 part, lactobacillus gasseri (Lactobacillusgasseri) 0.15 part, large pig feed is made up of the raw material of following parts by weight: corn flour 55 parts, peanut meal 17 parts, husked kaoliang 7 parts, fish meal 2.5 parts, cicada fungus 2.5 parts, medical stone powder 3.5 parts, Se-enriched yeast 0.25 part, Vitwas E 0.15 part, bacillus licheniformis (Bacilluslicheniformis) 0.25 part, lactobacillus plantarum (Lactobacillusplantarum) 0.25 part, lactobacillus curvatus (Lactobacilluscurvatus) 0.25 part, lactobacillus gasseri (Lactobacillusgasseri) 0.25 part.
As optimization, this live pig healthy aquaculture method, little pig feed is made up of following methods, by weight: a, will dregs of beans 21 parts, rock beans 3.5 parts pulverize after join in the pure water of 30 parts, under 90 ~ 100 DEG C of conditions keep 30 ~ 40 minutes; B, by lactobacillus plantarum (Lactobacillusplantarum) 0.15 part, lactobacillus curvatus (Lactobacilluscurvatus) 0.15 part, lactobacillus gasseri (Lactobacillusgasseri) 0.25 part; Corn flour 51 parts, stirs with after the mixture mixing in step a, under 33 ~ 38 DEG C of conditions, ferments 48 ~ 72 hours; C, by medical stone powder 5.5 parts, zinc citrate 0.5 part, Vitwas E 0.12 part, Se-enriched yeast 0.25 part, CMC 0.28 part, with in step b mixture mixing after stir.
As optimization, this live pig healthy aquaculture method, middle pig feed is made up of following methods, by weight: a, by peanut meal 19 parts, Qingqian Willow leaf 2.5 parts, Herb of Common Nipplewort 7 parts pulverize after, together join in the pure water of 30 parts with fish meal 3.5 parts, keep 30 ~ 40 minutes under 90 ~ 100 DEG C of conditions; B, by bacillus licheniformis (Bacilluslicheniformis) 0.25 part, lactobacillus plantarum (Lactobacillusplantarum) 0.15 part, lactobacillus curvatus (Lactobacilluscurvatus) 0.15 part, lactobacillus gasseri (Lactobacillusgasseri) 0.15 part; Corn flour 58 parts, stirs with after the mixture mixing in step a, under 33 ~ 38 DEG C of conditions, ferments 48 ~ 72 hours; C, by medical stone powder 4.5 parts, sand sagebrush seed oil 4.5 parts, Se-enriched yeast 0.25 part, Vitwas E 0.15 part, with in step b mixture mixing after stir.
As optimization, this live pig healthy aquaculture method, large pig feed is made up of following methods, by weight: a, will peanut meal 17 parts, husked kaoliang 7 parts, cicada fungus 2.5 parts pulverize after join in the pure water of 30 parts, under 90 ~ 100 DEG C of conditions keep 30 ~ 40 minutes; B, by bacillus licheniformis (Bacilluslicheniformis) 0.25 part, lactobacillus plantarum (Lactobacillusplantarum) 0.25 part, lactobacillus curvatus (Lactobacilluscurvatus) 0.25 part, lactobacillus gasseri (Lactobacillusgasseri) 0.25 part; Corn flour 55 parts, fish meal 2.5 parts, stir with after the mixture mixing in step a, under 33 ~ 38 DEG C of conditions, ferment 48 ~ 72 hours; C, by medical stone powder 3.5 parts, Se-enriched yeast 0.25 part, Vitwas E 0.15 part, with in step b mixture mixing after stir.
As optimization, this live pig healthy aquaculture method, Basic drawing is made up of the raw material of following parts by weight: corn 63.4 parts, dregs of beans 25.0 parts, fish meal 3.0 parts, 2.0 parts, wheat bran, fatty powder 3.0 parts, calcium monohydrogen phosphate 1.0 parts, salt 0.3 part, stone flour 1.0 parts, compound premix 1.0 parts, lysine 0.3 part.Wherein compound premix is Dong Lilv source, Zhejiang feed corporation,Ltd series compound premix; Comprise pig premix (30--60 kilogram) in " No. 3, Taihu Lake " 1% piggy premix (15--30 kilogram), " No. 3, Taihu Lake " 1%, " No. 3, Taihu Lake " 1% large pig premix (more than 60 kilograms).
Live pig healthy aquaculture method of the present invention, adopts the method having the fermented feed of special formulation and basal feed and alternately feed, can improve the conversion ratio of feed, promote pig growth, improve the daily gain of live pig, reduce feed-weight ratio; And live pig immunity can be improved; Greatly reduce the incidence of disease of diarrhoea; In addition, adopt this live pig healthy aquaculture method particularly can cultivate out, there is the selenium-rich live pig of outstanding quality and delicate meat.
Detailed description of the invention
The invention will be further described for embodiment plan given below; but can not be interpreted as it is limiting the scope of the invention; those skilled in the art to nonessential improvement and adjustment more of the present invention, still belong to protection scope of the present invention according to content of the present invention.
Embodiment 1: the binary market pig 120 selecting about 15 kilograms Yorks and long white hybridization, is in a good state of health.Slaughter determining after 5 months.Carry out free choice feeding, drinking-water, immunity and sterilization feeding and management by pig farm usual manner, in the 15-30 kg body weight stage, adopt a Basic drawing, a little pig feed alternately feeds; In the 30-60 kg body weight stage, adopt a Basic drawing, a middle pig feed alternately feeds; In more than 60 kilograms body weight stages, adopt a Basic drawing, a large pig feed alternately feeds;
Little pig feed is made up of following methods: a, will dregs of beans 21 kilograms, rock beans 3.5 kilograms pulverize after join in the pure water of 30 kilograms, under 90 ~ 100 DEG C of conditions keep 30 ~ 40 minutes; B, by lactobacillus plantarum (Lactobacillusplantarum) 0.15 kilogram, lactobacillus curvatus (Lactobacilluscurvatus) 0.15 kilogram, lactobacillus gasseri (Lactobacillusgasseri) 0.25 kilogram; Corn flour 51 kilograms, stirs with after the mixture mixing in step a, under 33 ~ 38 DEG C of conditions, ferments 48 ~ 72 hours; C, by medical stone powder 5.5 kilograms, zinc citrate 0.5 kilogram, Vitwas E 0.12 kilogram, Se-enriched yeast 0.25 kilogram, CMC 0.28 kilogram, with in step b mixture mixing after stir.
Middle pig feed is made up of following methods: a, by peanut meal 19 kilograms, Qingqian Willow leaf 2.5 kilograms, Herb of Common Nipplewort 7 kilograms pulverize after, together join in the pure water of 30 kilograms with fish meal 3.5 kilograms, under 90 ~ 100 DEG C of conditions keep 30 ~ 40 minutes; B, by bacillus licheniformis (Bacilluslicheniformis) 0.25 kilogram, lactobacillus plantarum (Lactobacillusplantarum) 0.15 kilogram, lactobacillus curvatus (Lactobacilluscurvatus) 0.15 kilogram, lactobacillus gasseri (Lactobacillusgasseri) 0.15 kilogram; Corn flour 58 kilograms, stirs with after the mixture mixing in step a, under 33 ~ 38 DEG C of conditions, ferments 48 ~ 72 hours; C, by medical stone powder 4.5 kilograms, sand sagebrush seed oil 4.5 kilograms, Se-enriched yeast 0.25 kilogram, Vitwas E 0.15 kilogram, with in step b mixture mixing after stir.
Large pig feed is made up of following methods: a, will peanut meal 17 kilograms, husked kaoliang 7 kilograms, cicada fungus 2.5 kilograms pulverize after join in the pure water of 30 kilograms, under 90 ~ 100 DEG C of conditions keep 30 ~ 40 minutes; B, by bacillus licheniformis (Bacilluslicheniformis) 0.25 kilogram, lactobacillus plantarum (Lactobacillusplantarum) 0.25 kilogram, lactobacillus curvatus (Lactobacilluscurvatus) 0.25 kilogram, lactobacillus gasseri (Lactobacillusgasseri) 0.25 kilogram; Corn flour 55 kilograms, fish meal 2.5 kilograms, stir with after the mixture mixing in step a, under 33 ~ 38 DEG C of conditions, ferment 48 ~ 72 hours; C, by medical stone powder 3.5 kilograms, Se-enriched yeast 0.25 kilogram, Vitwas E 0.15 kilogram, with in step b mixture mixing after stir.
Basic drawing is become by following mixed raw material: corn 63.4 kilograms, dregs of beans 25.0 kilograms, fish meal 3.0 kilograms, 2.0 kilograms, wheat bran, fatty powder 3.0 kilograms, calcium monohydrogen phosphate 1.0 kilograms, salt 0.3 kilogram, stone flour 1.0 kilograms, compound premix 1.0 kilograms, lysine 0.3 kilogram.Wherein compound premix is Dong Lilv source, Zhejiang feed corporation,Ltd series compound premix; Comprise pig premix (30--60 kilogram) in " No. 3, Taihu Lake " 1% piggy premix (15--30 kilogram), " No. 3, Taihu Lake " 1%, " No. 3, Taihu Lake " 1% large pig premix (more than 60 kilograms).
Embodiment 2: the binary market pig 120 selecting about 15 kilograms Yorks and long white hybridization, is in a good state of health.Slaughter determining after 5 months.Carry out free choice feeding, drinking-water, immunity and sterilization feeding and management by pig farm usual manner, the 15-30 kg body weight stage, adopt Basic drawing and little pig feed alternately to feed; In the 30-60 kg body weight stage, Basic drawing and middle pig feed is adopted alternately to feed; In more than 60 kilograms body weight stages, Basic drawing and large pig feed is adopted alternately to feed;
Little pig feed is made up of following methods: a, will dregs of beans 20 kilograms, rock beans 3 kilograms pulverize after join in the pure water of 30 kilograms, under 90 ~ 100 DEG C of conditions keep 30 ~ 40 minutes; B, by lactobacillus plantarum 0.1 kilogram, lactobacillus curvatus 0.1 kilogram, lactobacillus gasseri 0.2 kilogram, corn flour 50 kilograms, with in step a mixture mixing after stir, under 33 ~ 38 DEG C of conditions, ferment 48 ~ 72 hours; C, by medical stone powder 5 kilograms, zinc citrate 0.5 kilogram, Vitwas E 0.1 kilogram, Se-enriched yeast 0.2 kilogram, CMC 0.2 kilogram, with in step b mixture mixing after stir.
Middle pig feed is made up of following methods: a, by peanut meal 18 kilograms, Qingqian Willow leaf 2 kilograms, Herb of Common Nipplewort 6 kilograms pulverize after, together join in the pure water of 30 kilograms with fish meal 3.5 kilograms, under 90 ~ 100 DEG C of conditions keep 30 ~ 40 minutes; B, by bacillus licheniformis 0.2 kilogram, lactobacillus plantarum 0.1 kilogram, lactobacillus curvatus 0.1 kilogram, lactobacillus gasseri 0.1 kilogram; Corn flour 57 kilograms, stirs with after the mixture mixing in step a, under 33 ~ 38 DEG C of conditions, ferments 48 ~ 72 hours; C, by medical stone powder 4 kilograms, sand sagebrush seed oil 4 kilograms, Se-enriched yeast 0.2 kilogram, Vitwas E 0.1, with in step b mixture mixing after stir.
Large pig feed is made up of following methods: a, will peanut meal 16 kilograms, husked kaoliang 6 kilograms, cicada fungus 2 kilograms pulverize after join in the pure water of 30 kilograms, under 90 ~ 100 DEG C of conditions keep 30 ~ 40 minutes; B, by bacillus licheniformis 0.2 kilogram, lactobacillus plantarum 0.2 kilogram, lactobacillus curvatus 0.2 kilogram, lactobacillus gasseri 0.2 kilogram; Corn flour 54 kilograms, fish meal 2 kilograms, stir with after the mixture mixing in step a, under 33 ~ 38 DEG C of conditions, ferment 48 ~ 72 hours; C, by medical stone powder 3.5 kilograms, Se-enriched yeast 0.25 kilogram, Vitwas E 0.15 kilogram, with in step b mixture mixing after stir.
Basic drawing is become by following mixed raw material: corn 63.4 kilograms, dregs of beans 25.0 kilograms, fish meal 3.0 kilograms, 2.0 kilograms, wheat bran, fatty powder 3.0 kilograms, calcium monohydrogen phosphate 1.0 kilograms, salt 0.3 kilogram, stone flour 1.0 kilograms, compound premix 1.0 kilograms, lysine 0.3 kilogram.Wherein compound premix is Dong Lilv source, Zhejiang feed corporation,Ltd series compound premix; Comprise pig premix (30--60 kilogram) in " No. 3, Taihu Lake " 1% piggy premix (15--30 kilogram), " No. 3, Taihu Lake " 1%, " No. 3, Taihu Lake " 1% large pig premix (more than 60 kilograms).
Embodiment 3: the binary market pig 120 selecting about 15 kilograms Yorks and long white hybridization, is in a good state of health.Slaughter determining after 5 months.Carry out free choice feeding, drinking-water, immunity and sterilization feeding and management by pig farm usual manner, the 15-30 kg body weight stage, adopt Basic drawing and little pig feed alternately to feed; In the 30-60 kg body weight stage, Basic drawing and middle pig feed is adopted alternately to feed; In more than 60 kilograms body weight stages, Basic drawing and large pig feed is adopted alternately to feed;
Little pig feed is made up of following methods: a, will dregs of beans 22 kilograms, rock beans 4 kilograms pulverize after join in the pure water of 30 kilograms, under 90 ~ 100 DEG C of conditions keep 30 ~ 40 minutes; B, by lactobacillus plantarum 0.2 kilogram, lactobacillus curvatus 0.2 kilogram, lactobacillus gasseri 0.3 kilogram; Corn flour 53 kilograms, stirs with after the mixture mixing in step a, under 33 ~ 38 DEG C of conditions, ferments 48 ~ 72 hours; C, by medical stone powder 6 kilograms, zinc citrate 0.6 kilogram, Vitwas E 0.2 kilogram, Se-enriched yeast 0.3 kilogram, CMC 0.3 kilogram, with in step b mixture mixing after stir.
Middle pig feed is made up of following methods: a, by peanut meal 20 kilograms, Qingqian Willow leaf 3 kilograms, Herb of Common Nipplewort 8 kilograms pulverize after, together join in the pure water of 30 kilograms with fish meal 4 kilograms, under 90 ~ 100 DEG C of conditions keep 30 ~ 40 minutes; B, by bacillus licheniformis 0.3 kilogram, lactobacillus plantarum 0.2 kilogram, lactobacillus curvatus 0.2 kilogram, lactobacillus gasseri 0.2 kilogram; Corn flour 60 kilograms, stirs with after the mixture mixing in step a, under 33 ~ 38 DEG C of conditions, ferments 48 ~ 72 hours; C, by medical stone powder 5 kilograms, sand sagebrush seed oil 5 kilograms, Se-enriched yeast 0.3 kilogram, Vitwas E 0.2 kilogram, with in step b mixture mixing after stir.
Large pig feed is made up of following methods: a, will peanut meal 18 kilograms, husked kaoliang 8 kilograms, cicada fungus 3 kilograms pulverize after join in the pure water of 30 kilograms, under 90 ~ 100 DEG C of conditions keep 30 ~ 40 minutes; B, by bacillus licheniformis 0.3 kilogram, lactobacillus plantarum 0.3 kilogram, lactobacillus curvatus 0.3 kilogram, lactobacillus gasseri 0.3 kilogram; Corn flour 56 kilograms, fish meal 3 kilograms, stir with after the mixture mixing in step a, under 33 ~ 38 DEG C of conditions, ferment 48 ~ 72 hours; C, by medical stone powder 4 kilograms, Se-enriched yeast 0.3 kilogram, Vitwas E 0.2 kilogram, with in step b mixture mixing after stir.
Basic drawing is become by following mixed raw material: corn 63.4 kilograms, dregs of beans 25.0 kilograms, fish meal 3.0 kilograms, 2.0 kilograms, wheat bran, fatty powder 3.0 kilograms, calcium monohydrogen phosphate 1.0 kilograms, salt 0.3 kilogram, stone flour 1.0 kilograms, compound premix 1.0 kilograms, lysine 0.3 kilogram.Wherein compound premix is Dong Lilv source, Zhejiang feed corporation,Ltd series compound premix; Comprise pig premix (30--60 kilogram) in " No. 3, Taihu Lake " 1% piggy premix (15--30 kilogram), " No. 3, Taihu Lake " 1%, " No. 3, Taihu Lake " 1% large pig premix (more than 60 kilograms).
Related experiment: the binary business piglet 480 selecting about 15 kilograms Yorks and long white hybridization; Be divided into 4 groups, experimental group 1, adopt live pig healthy aquaculture method in embodiment 1; Experimental group 2, adopts live pig healthy aquaculture method in embodiment 2; Experimental group 3, adopts live pig healthy aquaculture method in embodiment 3; Control group, feed only adopts corresponding Basic drawing.Free choice feeding, drinking-water, immunity and sterilization feeding and management is carried out by pig farm usual manner.Slaughter determining index after 5 months.
Growth property index: measure examination that each stage respectively organizes just counterpoise, try last counterpoise, Average weight increasing a day, feed consumption weightening finish than, average daily feed intake, diarrhea rate, growth performance indicator-specific statistics is in table 1.
Pork quality traits: yellowish pink: measure with SP60 type integrating sphere type spectrophotometer (X-rite company of the U.S.).PH: measure with Orion210A+ type pH meter (ThermoElectronCorporation).Shearing force: measure with C-LM3 tender degree device (engineering college of Northeast Agricultural University).Percentage of water loss: measure with the DW-1 type unconfined compression apparatus that Nanjing Soil Apparatus Factory produces.The mensuration of Se content in muscle: in muscle, the mensuration of Se content adopts the Se content in PE-AA800 atomic absorption spectrometry muscle, test procedure by GB5009.93-2010 (mensuration of selenium in food " carry out, pork quality traits is added up in table 2.Can be found out by table 1 and table 2, adopt live pig healthy aquaculture method of the present invention, Average weight increasing a day can be improved, reduce feed-weight ratio and diarrhea rate; Improve, the selenium content of pork simultaneously, reduce percentage of water loss shearing force, enhance nutritional quality and the tenderness of pork.