CN113303283A - Raising method of growing-finishing pigs of inland river pig complete line - Google Patents
Raising method of growing-finishing pigs of inland river pig complete line Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
- A01K67/02—Breeding vertebrates
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/10—Animal feeding-stuffs obtained by microbiological or biochemical processes
- A23K10/12—Animal feeding-stuffs obtained by microbiological or biochemical processes by fermentation of natural products, e.g. of vegetable material, animal waste material or biomass
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
- A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
- A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
- A23K10/38—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material from distillers' or brewers' waste
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- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/105—Aliphatic or alicyclic compounds
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/142—Amino acids; Derivatives thereof
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/158—Fatty acids; Fats; Products containing oils or fats
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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Abstract
The invention discloses a raising method of growing-finishing pigs of a Nenjiang pig supporting line, which comprises the following steps: when the pigs in the Neijiang reach the age of 28 days, separating by removing sows in the fence and leaving piglets, and feeding the piglets with feed at the first stage, wherein the daily feed intake is controlled to be 0.65-0.75 kg/piglet; when the pigs in the Neijiang reach 63 days old, the pigs are cultivated in circles and fed with the second stage feed, and the daily feed intake is controlled to be 1.0-1.5 kg/pig; feeding the third stage feed to the Neijiang pigs after the Neijiang pigs reach 98 days of age, and controlling the daily feed intake to be 1.5-2.0 kg/pig; when the internal river pigs reach 147 days of age, the internal river pigs are fed with feed of the fourth stage, and the daily feed intake is controlled to be 3.5-4.0 kg/pig. The feeding method can effectively solve the problem of poor meat quality and fat deposition effect of the existing feeding method.
Description
Technical Field
The invention relates to the technical field of growing and fattening pig breeding, in particular to a method for breeding growing and fattening pigs in a Neijiang pig supporting line.
Background
Neijiang pigs are excellent local pig breeds in China, and are listed in the national livestock and poultry breed resource protection list in 2000 by Ministry of agriculture, are one of national key protected local breed resources, and are important breed resources for developing local characteristic pig breeding in Sichuan province. The Nenjiang pigs have a development history of one thousand, eight and a hundred years, are mainly produced in Nenjiang cities and counties, and have a central production area in Dongxing towns of the Nenjiang cities, and have historically been called 'Dongxiang pigs' which are large in size and loose in constitution. Big head, short mouth tube, deep depression of transverse striation on forehead surface to form ditch, and the middle part of forehead skin is raised to form block, commonly called as 'covered bowl', middle ear is big, drooping, wide trunk, slightly concave back and waist, big abdomen without dragging ground, slightly backward inclined hip width, thicker limbs, thick skin, deep wrinkles on the side and back leg of adult pig, commonly called as 'tile ditch' or 'trousers'. The hair is dark, the hair is thick and long, and the nipple is thick, generally 6-7 pairs.
The nutrition requirement of the Nenjiang pig complete set system is different from that of other pig breeds, the nutrition required by different pig breeds and the same pig breed in different growth stages is different, and a scientific and reasonable feeding plan needs to be formulated according to the nutrition requirements of different growth stages. For the Nenjiang pigs which are created with the aim of special flavor and taste, the breeding of the Nenjiang pigs in the fattening stage needs to take daily gain and breeding modes into consideration, and also needs to take meat quality and back fat deposition into full consideration. At present, the daily ration prepared by DLY (traditional Chinese medicine) foreign breeding pigs and other local breeding pigs is generally used for feeding the Neijiang pigs, but the feeding mode causes the growth and development of the Neijiang pigs and the meat quality of the Neijiang pigs to be difficult to meet the requirements.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a raising method of growing-finishing pigs of a Nenjiang pig mating line, which can effectively solve the problem of poor meat quality and fat deposition effect of the existing raising method.
In order to achieve the purpose, the technical scheme adopted by the invention for solving the technical problems is as follows:
a raising method of growing-finishing pigs of a Nenjiang pig complete line comprises the following steps:
(1) when the pigs in the Neijiang reach the age of 28 days, separating by removing sows in the fence and leaving piglets, and feeding the piglets with feed at the first stage, wherein the daily feed intake is controlled to be 0.65-0.75 kg/piglet;
(2) when the pigs in the Neijiang reach 63 days old, the pigs are cultivated in circles and fed with the second stage feed, and the daily feed intake is controlled to be 1.0-1.5 kg/pig;
(3) feeding the third stage feed to the Neijiang pigs after the Neijiang pigs reach 98 days of age, and controlling the daily feed intake to be 1.5-2.0 kg/pig;
(4) when the internal river pigs reach 147 days of age, the internal river pigs are fed with feed of the fourth stage, and the daily feed intake is controlled to be 3.5-4.0 kg/pig.
According to the scheme, the Neijiang pigs are fed in four stages, feeds with different nutritional ingredients are fed in each stage according to the growth condition and the nutritional requirements of the Neijiang pigs, and the daily feed intake of each stage is controlled, so that the meat quality improvement condition and the fat deposition condition of the Neijiang pigs are improved.
Further, the feed in the first stage in the step (1) comprises the following components in parts by weight: 55-65 parts of corn, 3-7 parts of wheat flour, 3-8 parts of puffed soybean, 14-19 parts of soybean meal, 2-5 parts of fermented soybean meal, 1-3 parts of soybean oil, 0.5-2 parts of calcium hydrophosphate I, 0.2-1 part of stone powder, 0.1-0.3 part of zinc oxide, 0.1-0.5 part of sodium chloride, 0.01-0.1 part of complex enzyme, 0.01-0.1 part of choline chloride, 0.01-0.1 part of L-threonine, 0.01-0.08 part of L-tryptophan, 0.1-0.5 part of DL-methionine, 0.1-0.8 part of L-lysine hydrochloride, 0.1-0.8 part of microelement premix and 0.1-0.8 part of vitamin premix.
Further, the feed in the first stage in the step (1) comprises the following components in parts by weight: 62.2 parts of corn, 5 parts of wheat flour, 6 parts of puffed soybean, 16.5 parts of soybean meal, 3 parts of fermented soybean meal, 2.22 parts of soybean oil, 1.56 parts of calcium hydrophosphate I, 0.61 part of stone powder, 0.15 part of zinc oxide, 0.39 part of sodium chloride, 0.05 part of complex enzyme, 0.05 part of choline chloride, 0.15 part of L-threonine, 0.04 part of L-tryptophan, 0.2 part of DL-methionine, 0.48 part of L-lysine hydrochloride, 0.4 part of microelement premix and 0.5 part of vitamin premix.
Further, in the step (1), the daily feed intake was controlled to be 0.71 kg/pig.
In the scheme, in the first stage, the internal-river piglets are weaned, the stress of the piglets is high, the functions of all parts in vivo are incomplete, the functions of a digestive system are not complete, the resistance is weak, the requirements on various nutrients are urgent, and especially the requirements on protein, calcium, vitamins and mineral substances are more, so that easily digestible protein raw materials are selected in the feed, and enzyme preparations, amino acids, vitamins and trace elements are added to improve the digestive capacity and the intestinal adaptability of the piglets, thereby laying a foundation for subsequent feeding.
Further, the second stage feed in the step (2) comprises the following components in parts by weight: 50-60 parts of corn, 2-7 parts of wheat flour, 8-13 parts of soybean meal, 8-12 parts of whole wheat flour, 3-7 parts of corn germ cake, 2-5 parts of wheat bran, 8-7 parts of corn DDGS3, 0.5-2 parts of calcium hydrophosphate I, 0.2-1 part of stone powder, 0.2-5 parts of calcium chloride, 0.1-3 parts of L-threonine, 0.01-0.05 part of L-tryptophan, 0.01-0.2 part of DL-methionine, 0.0-0.05 part of phytase, 0.1-1 part of L-lysine hydrochloride, 0.1-0.7 part of vitamin premix and 0.05-0.2 part of trace element premix.
Further, the second stage feed in the step (2) comprises the following components in parts by weight: 56.79 parts of corn, 5 parts of wheat flour, 11.1 parts of soybean meal, 10 parts of whole wheat flour, 5 parts of corn germ cake, 3.2 parts of wheat bran, 5 parts of corn DDGS, 1.18 parts of calcium hydrophosphate I, 0.78 part of stone powder, 0.37 part of calcium chloride, 0.14 part of L-threonine, 0.03 part of L-tryptophan, 0.07 part of DL-methionine, 0.02 part of phytase, 0.75 part of L-lysine hydrochloride, 0.4 part of vitamin premix and 0.15 part of trace element premix.
Further, in the step (2), the number of pigs in each circle is 10-16.
Further, the daily feed intake in step (2) was controlled to be 1.20 kg/pig.
In the scheme, after the piglets are fed for a period of time, the intestinal tracts are basically adapted, the functions of all parts in the bodies tend to be perfect, the feed intake is increased, the digestion utilization rate of crude fibers in the feed is obviously enhanced, and the content of the crude fibers in the feed can be properly increased.
Further, the third stage feed in the step (3) comprises the following components in parts by weight: 50-60 parts of corn, 2-7 parts of wheat flour, 6-15 parts of soybean meal, 8-12 parts of whole wheat flour, 5-9 parts of corn germ cake, 8-12 parts of wheat bran, 8-9 parts of corn DDGS5-9 parts of calcium bicarbonate I type, 0.5-1 part of stone powder, 0.2-0.5 part of sodium chloride, 0.05-0.2 part of L-threonine, 0.01-0.06 part of L-tryptophan, 0.01-0.05 part of DL-methionine, 0.01-0.07 part of phytase, 0.5-1 part of L-lysine hydrochloride, 0.1-0.5 part of vitamin premix and 0.1-0.2 part of trace element premix.
Further, the third stage feed in the step (3) comprises the following components in parts by weight: 52.81 parts of corn, 5 parts of wheat flour, 11.1 parts of soybean meal, 10 parts of whole wheat flour, 7 parts of corn germ cake, 10.2 parts of wheat bran, 7 parts of corn DDGS, 0.96 part of calcium bicarbonate I type, 0.82 part of stone powder, 0.36 part of sodium chloride, 0.1 part of L-threonine, 0.03 part of L-tryptophan, 0.02 part of DL-methionine, 0.02 part of phytase, 0.71 part of L-lysine hydrochloride, 0.3 part of vitamin premix and 0.15 part of trace element premix.
Further, the daily feed intake in step (3) was controlled to be 1.80 kg/pig.
In the scheme, all parts in the Neijiang pig body completely have normal functions, the digestion and absorption capacity of each feed is enhanced, particularly the digestion and utilization capacity of crude fibers is enhanced, the stress resistance and adaptability are greatly improved, the growth speed of piglets is accelerated, and in this stage, the growth period is required to be properly prolonged in order to ensure the meat quality.
Further, the fourth stage feed in the step (4) comprises the following components in parts by weight: 50-60 parts of corn, 8-12 parts of whole wheat, 5-8 parts of corn germ cake, 14-18 parts of wheat bran, 0.5-1 part of corn DDGS5-9 parts, 0.5-1 part of calcium hydrophosphate I, 0.5-1 part of stone powder, 0.2-0.5 part of sodium chloride, 0.05-0.1 part of L-threonine, 0.01-0.04 part of L-tryptophan, 0.01-0.03 part of phytase, 0.5-0.8 part of L-lysine hydrochloride, 0.2-0.4 part of vitamin premix and 0.1-0.2 part of trace element premix.
Further, the fourth stage feed in the step (4) comprises the following components in parts by weight: 55.88 parts of corn, 10 parts of whole wheat, 7 parts of corn germ cake, 16.3 parts of wheat bran, 7.7 parts of corn DDGS, 0.76 part of calcium hydrophosphate I, 0.84 part of stone powder, 0.36 part of sodium chloride, 0.07 part of L-threonine, 0.02 part of L-tryptophan, 0.02 part of phytase, 0.61 part of L-lysine hydrochloride, 0.3 part of vitamin premix and 0.15 part of trace element premix.
Further, in the step (4), the daily feed intake is controlled to be 3.65 kg/pig.
In the scheme, all parts in the Neijiang pig body have normal functions, the digestion and absorption capacity of various feeds is enhanced, particularly the digestion and utilization capacity of crude fibers is enhanced, the stress resistance and adaptability are greatly improved, and the growth speed is accelerated. In the stage, the coarse protein and the coarse fiber are gradually reduced and increased by adjusting the nutrient components in the feed, and the growth speed is controlled by properly prolonging the growth period, so that the back fat deposition can be reduced and the flavor substance deposition can be increased.
The beneficial effects produced by the invention are as follows:
the feed is fed to the Neijiang pigs in four stages, and the proportion of each component in the feed is adjusted in each stage according to the specific conditions of the Neijiang pigs and the requirements on nutrient substances; and in the third and fourth stages, the meat quality and flavor of the Neijiang pigs are improved and the thickness of the backfat is reduced by controlling the feeding period and adjusting the content of crude fiber in the feed.
The feed disclosed by the invention is designed in a matching way aiming at different fattening stages, antibiotics are not added, a green feed is not required to be added at the later stage of feeding, conventional raw materials are fully utilized, and the feed has the advantages of low cost and suitability for mass production.
Detailed Description
Example 1
A raising method of growing-finishing pigs of a Nenjiang pig complete line comprises the following steps:
(1) when the pigs in the Neijiang reach the age of 28 days, separating by removing sows in the fence and leaving piglets, and feeding the piglets with feed at the first stage, wherein the daily feed intake is controlled to be 0.65 kg/piglet; the first stage feed comprises the following components in parts by weight: 60 parts of corn, 4 parts of wheat flour, 7 parts of puffed soybean, 16 parts of soybean meal, 3 parts of fermented soybean meal, 2 parts of soybean oil, 1.5 parts of calcium hydrophosphate I, 0.8 part of stone powder, 0.2 part of zinc oxide, 0.4 part of sodium chloride, 0.06 part of complex enzyme, 0.06 part of choline chloride, 0.02 part of L-threonine, 0.06 part of L-tryptophan, 0.15 part of DL-methionine, 0.6 part of L-lysine hydrochloride, 0.5 part of trace element premix and 0.6 part of vitamin premix;
(2) when the pigs in the Nei river reach 63 days of age, the pigs are cultivated in circles and fed with second-stage feed, and the daily feed intake is controlled to be 1.3 kg/pig; the second stage feed comprises the following components in parts by weight: 55 parts of corn, 6 parts of wheat flour, 10 parts of soybean meal, 9 parts of whole wheat flour, 6 parts of corn germ cake, 4 parts of wheat bran, 5 parts of corn DDGS, 1.2 parts of calcium hydrophosphate I, 0.6 part of stone powder, 0.5 part of calcium chloride, 0.2 part of L-threonine, 0.04 part of L-tryptophan, 0.07 part of DL-methionine, 0.04 part of phytase, 0.8 part of L-lysine hydrochloride, 0.5 part of vitamin premix and 0.15 part of trace element premix;
(3) feeding the pigs at the third stage with feed when the pigs reach 98 days of age, wherein the daily feed intake is controlled to be 2.0 kg/pig; the third stage feed comprises the following components in parts by weight: 50 parts of corn, 4 parts of wheat flour, 12 parts of soybean meal, 10 parts of whole wheat flour, 7 parts of corn germ cake, 9 parts of wheat bran, 8 parts of corn DDGS, 0.8 part of calcium bicarbonate I type, 0.7 part of stone powder, 0.4 part of sodium chloride, 0.15 part of L-threonine, 0.04 part of L-tryptophan, 0.03 part of DL-methionine, 0.04 part of phytase, 0.6 part of L-lysine hydrochloride, 0.2 part of vitamin premix and 0.2 part of trace element premix;
(4) when the inner river pigs reach 147 days of age, feeding the inner river pigs with feed at a fourth stage, and controlling the daily feed intake to be 3.5 kg/pig; the fourth stage feed comprises the following components in parts by weight: 50 parts of corn, 8 parts of whole wheat, 8 parts of corn germ cake, 16 parts of wheat bran, 8 parts of corn DDGS, 0.8 part of calcium hydrophosphate I, 0.9 part of stone powder, 0.4 part of sodium chloride, 0.08 part of L-threonine, 0.03 part of L-tryptophan, 0.03 part of phytase, 0.7 part of L-lysine hydrochloride, 0.4 part of vitamin premix and 0.2 part of trace element premix.
Example 2
A raising method of growing-finishing pigs of a Nenjiang pig complete line comprises the following steps:
(1) when the pigs in the Neijiang reach the age of 28 days, separating by removing sows in the fence and leaving piglets, and feeding the piglets with feed at the first stage, wherein the daily feed intake is controlled to be 0.71 kg/piglet; the first stage feed comprises the following components in parts by weight: 62.2 parts of corn, 5 parts of wheat flour, 6 parts of puffed soybean, 16.5 parts of soybean meal, 3 parts of fermented soybean meal, 2.22 parts of soybean oil, 1.56 parts of calcium hydrophosphate I, 0.61 part of stone powder, 0.15 part of zinc oxide, 0.39 part of sodium chloride, 0.05 part of complex enzyme, 0.05 part of choline chloride, 0.15 part of L-threonine, 0.04 part of L-tryptophan, 0.2 part of DL-methionine, 0.48 part of L-lysine hydrochloride, 0.4 part of microelement premix and 0.5 part of vitamin premix;
(2) when the pigs in the Nei river reach 63 days of age, the pigs are cultivated in circles and fed with second-stage feed, and the daily feed intake is controlled to be 1.2 kg/pig; the second stage feed comprises the following components in parts by weight: 56.79 parts of corn, 5 parts of wheat flour, 11.1 parts of soybean meal, 10 parts of whole wheat flour, 5 parts of corn germ cake, 3.2 parts of wheat bran, 5 parts of corn DDGS, 1.18 parts of calcium hydrophosphate I, 0.78 part of stone powder, 0.37 part of calcium chloride, 0.14 part of L-threonine, 0.03 part of L-tryptophan, 0.07 part of DL-methionine, 0.02 part of phytase, 0.75 part of L-lysine hydrochloride, 0.4 part of vitamin premix and 0.15 part of trace element premix;
(3) feeding the pigs at the third stage with feed when the pigs reach 98 days of age, wherein the daily feed intake is controlled to be 1.8 kg/pig; the third stage feed comprises the following components in parts by weight: 52.81 parts of corn, 5 parts of wheat flour, 11.1 parts of soybean meal, 10 parts of whole wheat flour, 7 parts of corn germ cake, 10.2 parts of wheat bran, 7 parts of corn DDGS, 0.96 part of calcium bicarbonate I type, 0.82 part of stone powder, 0.36 part of sodium chloride, 0.1 part of L-threonine, 0.03 part of L-tryptophan, 0.02 part of DL-methionine, 0.02 part of phytase, 0.71 part of L-lysine hydrochloride, 0.3 part of vitamin premix and 0.15 part of trace element premix;
(4) when the inner river pigs reach 147 days of age, feeding the inner river pigs with feed at a fourth stage, and controlling the daily feed intake to be 3.65 kg/pig; the fourth stage feed comprises the following components in parts by weight: 55.88 parts of corn, 10 parts of whole wheat, 7 parts of corn germ cake, 16.3 parts of wheat bran, 7.7 parts of corn DDGS, 0.76 part of calcium hydrophosphate I, 0.84 part of stone powder, 0.36 part of sodium chloride, 0.07 part of L-threonine, 0.02 part of L-tryptophan, 0.02 part of phytase, 0.61 part of L-lysine hydrochloride, 0.3 part of vitamin premix and 0.15 part of trace element premix.
Comparative example 1
A raising method of growing-finishing pigs of a Nenjiang pig complete line comprises the following steps:
(1) when the pigs in the Neijiang reach 35 days old, separating by removing sows in the fence and leaving piglets, feeding the first stage feed for the piglets, and controlling the daily feed intake to be 0.71 kg/piglet; the first stage feed comprises the following components in parts by weight: 62.2 parts of corn, 5 parts of wheat flour, 6 parts of puffed soybean, 16.5 parts of soybean meal, 3 parts of fermented soybean meal, 2.22 parts of soybean oil, 1.56 parts of calcium hydrophosphate I, 0.61 part of stone powder, 0.15 part of zinc oxide, 0.39 part of sodium chloride, 0.05 part of complex enzyme, 0.05 part of choline chloride, 0.15 part of L-threonine, 0.04 part of L-tryptophan, 0.2 part of DL-methionine, 0.48 part of L-lysine hydrochloride, 0.4 part of microelement premix and 0.5 part of vitamin premix;
(2) when the pigs in the Nei river reach 70 days old, the pigs are cultivated in circles and fed with second-stage feed, and the daily feed intake is controlled to be 1.2 kg/pig; the second stage feed comprises the following components in parts by weight: 56.79 parts of corn, 5 parts of wheat flour, 11.1 parts of soybean meal, 10 parts of whole wheat flour, 5 parts of corn germ cake, 3.2 parts of wheat bran, 5 parts of corn DDGS, 1.18 parts of calcium hydrophosphate I, 0.78 part of stone powder, 0.37 part of calcium chloride, 0.14 part of L-threonine, 0.03 part of L-tryptophan, 0.07 part of DL-methionine, 0.02 part of phytase, 0.75 part of L-lysine hydrochloride, 0.4 part of vitamin premix and 0.15 part of trace element premix;
(3) when the internal river pigs reach 100 days of age, feeding the internal river pigs with feed of the third stage, wherein the daily feed intake is controlled to be 2.5 kg/pig; the third stage feed comprises the following components in parts by weight: 52.81 parts of corn, 5 parts of wheat flour, 11.1 parts of soybean meal, 10 parts of whole wheat flour, 7 parts of corn germ cake, 10.2 parts of wheat bran, 7 parts of corn DDGS, 0.96 part of calcium bicarbonate I type, 0.82 part of stone powder, 0.36 part of sodium chloride, 0.1 part of L-threonine, 0.03 part of L-tryptophan, 0.02 part of DL-methionine, 0.02 part of phytase, 0.71 part of L-lysine hydrochloride, 0.3 part of vitamin premix and 0.15 part of trace element premix;
(4) when the pigs in Neijiang reach 130 days old, feeding the pigs with feed of the fourth stage, and controlling the daily feed intake to be 3.8 kg/pig; the fourth stage feed comprises the following components in parts by weight: 55.88 parts of corn, 10 parts of whole wheat, 7 parts of corn germ cake, 16.3 parts of wheat bran, 7.7 parts of corn DDGS, 0.76 part of calcium hydrophosphate I, 0.84 part of stone powder, 0.36 part of sodium chloride, 0.07 part of L-threonine, 0.02 part of L-tryptophan, 0.02 part of phytase, 0.61 part of L-lysine hydrochloride, 0.3 part of vitamin premix and 0.15 part of trace element premix.
Comparative example 2
A raising method of growing-finishing pigs of a Nenjiang pig complete line comprises the following steps:
(1) when the pigs in the Neijiang reach the age of 28 days, separating by removing sows in the fence and leaving piglets, and feeding the piglets with feed at the first stage, wherein the daily feed intake is controlled to be 0.71 kg/piglet; the first stage feed comprises the following components in parts by weight: 55 parts of corn, 2 parts of wheat flour, 12 parts of soybean meal, 3 parts of fermented soybean meal, 2.22 parts of soybean oil, 1.56 parts of calcium hydrophosphate I, 0.61 part of stone powder, 0.15 part of zinc oxide, 0.39 part of sodium chloride, 0.05 part of complex enzyme, 0.05 part of choline chloride, 0.15 part of L-threonine, 0.04 part of L-tryptophan, 0.2 part of DL-methionine, 0.48 part of L-lysine hydrochloride, 0.4 part of trace element premix and 0.5 part of vitamin premix;
(2) when the pigs in the Nei river reach 63 days of age, the pigs are cultivated in circles and fed with second-stage feed, and the daily feed intake is controlled to be 1.2 kg/pig; the second stage feed comprises the following components in parts by weight: 56.79 parts of corn, 5 parts of wheat flour, 11.1 parts of soybean meal, 10 parts of whole wheat flour, 5 parts of corn germ cake, 3.2 parts of wheat bran, 5 parts of corn DDGS, 1.18 parts of calcium hydrophosphate I, 0.78 part of stone powder, 0.37 part of calcium chloride, 0.14 part of L-threonine, 0.03 part of L-tryptophan, 0.07 part of DL-methionine, 0.02 part of phytase, 0.75 part of L-lysine hydrochloride, 0.4 part of vitamin premix and 0.15 part of trace element premix;
(3) feeding the pigs at the third stage with feed when the pigs reach 98 days of age, wherein the daily feed intake is controlled to be 1.8 kg/pig; the third stage feed comprises the following components in parts by weight: 52.81 parts of corn, 5 parts of wheat flour, 11.1 parts of soybean meal, 10 parts of whole wheat flour, 7 parts of corn germ cake, 10.2 parts of wheat bran, 7 parts of corn DDGS, 0.96 part of calcium bicarbonate I type, 0.82 part of stone powder, 0.36 part of sodium chloride, 0.1 part of L-threonine, 0.03 part of L-tryptophan, 0.02 part of DL-methionine, 0.02 part of phytase, 0.71 part of L-lysine hydrochloride, 0.3 part of vitamin premix and 0.15 part of trace element premix;
(4) when the inner river pigs reach 147 days of age, feeding the inner river pigs with feed at a fourth stage, and controlling the daily feed intake to be 3.65 kg/pig; the fourth stage feed comprises the following components in parts by weight: 55.88 parts of corn, 10 parts of whole wheat, 7 parts of corn germ cake, 16.3 parts of wheat bran, 7.7 parts of corn DDGS, 0.76 part of calcium hydrophosphate I, 0.84 part of stone powder, 0.36 part of sodium chloride, 0.07 part of L-threonine, 0.02 part of L-tryptophan, 0.02 part of phytase, 0.61 part of L-lysine hydrochloride, 0.3 part of vitamin premix and 0.15 part of trace element premix.
Test examples
Randomly selecting 2000 Nenjiang pigs to be weaned, randomly dividing the Nenjiang pigs into 4 groups, wherein each group comprises 500 piglets which are comparable, feeding each group of piglets according to the method in the embodiment 1-2 and the comparative example 1-2, marketing, slaughtering and selling after feeding for 200 days, calculating and recording parameters such as slaughter weight, backfat thickness and feed-meat ratio of the Nenjiang pigs in each group in the slaughtering process, and recording the average value of each group, wherein the specific results are shown in the table 1.
The feed-meat ratio is total feed consumption (kg)/total weight gain (kg);
table 1: fattening condition of Neijiang pigs
| Meat ratio of materials | Weight in slaughter (kg) | Backfat thickness (mm) | |
| Example 1 | 3.65 | 122.1 | 11.5 |
| Example 2 | 3.67 | 121.5 | 11.8 |
| Comparative example 1 | 3.89 | 117.2 | 12.9 |
| Comparative example 2 | 3.97 | 115.4 | 12.8 |
As can be seen from the data in the table above, the feed-meat ratio of the Nenjiang pigs in the example 1-2 is smaller than that in the comparative example 1-2, the slaughter weight of the example 1-2 is smaller than that of the example 1-2, and the backfat thickness of the example 1-2 is larger than that of the example 1-2, so that the Nenjiang pigs fed by the method can effectively reduce the backfat thickness of the Nenjiang pigs while ensuring the slaughter weight of the Nenjiang pigs.
Claims (6)
1. A raising method of growing-finishing pigs of a Nenjiang pig complete line is characterized by comprising the following steps:
(1) when the pigs in the Neijiang reach the age of 28 days, separating by removing sows in the fence and leaving piglets, and feeding the piglets with feed at the first stage, wherein the daily feed intake is controlled to be 0.65-0.75 kg/piglet;
(2) when the pigs in the Neijiang reach 63 days old, the pigs are cultivated in circles and fed with the second stage feed, and the daily feed intake is controlled to be 1.0-1.5 kg/pig;
(3) feeding the third stage feed to the Neijiang pigs after the Neijiang pigs reach 98 days of age, and controlling the daily feed intake to be 1.5-2.0 kg/pig;
(4) when the internal river pigs reach 147 days of age, the internal river pigs are fed with feed of the fourth stage, and the daily feed intake is controlled to be 3.5-4.0 kg/pig.
2. The method for feeding Nenjiang pig matched line growing-finishing pigs as claimed in claim 1, wherein the feed in the first stage in the step (1) comprises the following components in parts by weight: 55-65 parts of corn, 3-7 parts of wheat flour, 3-8 parts of puffed soybean, 14-19 parts of soybean meal, 2-5 parts of fermented soybean meal, 1-3 parts of soybean oil, 0.5-2 parts of calcium hydrophosphate I, 0.2-1 part of stone powder, 0.1-0.3 part of zinc oxide, 0.1-0.5 part of sodium chloride, 0.01-0.1 part of complex enzyme, 0.01-0.1 part of choline chloride, 0.01-0.1 part of L-threonine, 0.01-0.08 part of L-tryptophan, 0.1-0.5 part of DL-methionine, 0.1-0.8 part of L-lysine hydrochloride, 0.1-0.8 part of microelement premix and 0.1-0.8 part of vitamin premix.
3. The method for feeding Nenjiang pig matched line growing-finishing pigs as claimed in claim 1, wherein the second stage feed in the step (2) comprises the following components in parts by weight: 50-60 parts of corn, 2-7 parts of wheat flour, 8-13 parts of soybean meal, 8-12 parts of whole wheat flour, 3-7 parts of corn germ cake, 2-5 parts of wheat bran, 8-7 parts of corn DDGS3, 0.5-2 parts of calcium hydrophosphate I, 0.2-1 part of stone powder, 0.2-5 parts of calcium chloride, 0.1-3 parts of L-threonine, 0.01-0.05 part of L-tryptophan, 0.0-0.2 part of DL-methionine, 0.02-0.05 part of phytase, 0.1-1 part of L-lysine hydrochloride, 0.1-0.7 part of vitamin premix and 0.05-0.2 part of trace element premix.
4. The method for feeding Nenjiang pig matched line growing-finishing pigs as claimed in claim 1, wherein in the step (2), the number of Nenjiang pigs in each circle is 10-16.
5. The method for feeding Nenjiang pig matched line growing-finishing pigs as claimed in claim 1, wherein the feed in the third stage in the step (3) comprises the following components in parts by weight: 50-60 parts of corn, 2-7 parts of wheat flour, 6-15 parts of soybean meal, 8-12 parts of whole wheat flour, 5-9 parts of corn germ cake, 8-12 parts of wheat bran, 8-9 parts of corn DDGS5-9 parts of calcium bicarbonate I type, 0.5-1 part of stone powder, 0.2-0.5 part of sodium chloride, 0.05-0.2 part of L-threonine, 0.01-0.06 part of L-tryptophan, 0.01-0.05 part of DL-methionine, 0.01-0.07 part of phytase, 0.5-1 part of L-lysine hydrochloride, 0.1-0.5 part of vitamin premix and 0.1-0.2 part of trace element premix.
6. The method for feeding Nenjiang pig matched line growing-finishing pigs as claimed in claim 1, wherein the fourth stage feed in the step (4) comprises the following components in parts by weight: 50-60 parts of corn, 8-12 parts of whole wheat, 5-8 parts of corn germ cake, 14-18 parts of wheat bran, 0.5-1 part of corn DDGS5-9 parts, 0.5-1 part of calcium hydrophosphate I, 0.5-1 part of stone powder, 0.2-0.5 part of sodium chloride, 0.05-0.1 part of L-threonine, 0.01-0.04 part of L-tryptophan, 0.01-0.03 part of phytase, 0.5-0.8 part of L-lysine hydrochloride, 0.2-0.4 part of vitamin premix and 0.1-0.2 part of trace element premix.
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