38 results about "Carcass weight" patented technology

The invention provides a major SNP (single nucleotide polymorphism) marker influencing the growth traits of pigs. The SNP marker is located at a nucleotide sequence of an HMGA1 gene of a pig chromosome 7, a locus of the SNP marker is the nucleotide mutation of C857-G857 with an SEQ ID NO:1 sequence labeling position of 857, corresponding to a 34983991st nucleotide locus C> on chromosome 7 in a reference sequence in an international pig genome version 10.2, G mutation, or one of seven other loci completely linked with the locus. The invention also provides the application of the SNP marker in the genetic improvement of growth traits of breeding pigs, and provides the application of an SNP molecular marker with a linkage disequilibrium degree (r2) with the SNP marker of greater than 0.8 in the genetic improvement of growth traits of breeding pigs. The growth traits include one or more of the length and height of a living body of a pig, carcass length, carcass weight, daily gain and head weight. According to the invention, the breeding process of breeding pigs can be accelerated, the productivity of breeding pigs can be effectively improved, and remarkable economic benefits can be obtained.

The invention relates to a breeding method of feeding non-protective amino acid to early-weaning lambs, feedstuff and a preparation method thereof. The breeding method is realized in a way as follows: starting to feed the non-protective amino acid feedstuff for early-weaning lambs to the lambs after early weaning. The invention changes the traditional concept and breeding method for early-weaninglambs without consideration on the amino acid nutrients. The method of feeding non-protective amino acid to early-weaning lambs can greatly (about 20%) enhance the growth rate of early-weaning fat lambs, and obviously increase the daily gain, carcass weight, meat weight, lean meat weight and lean meat percentage of lambs, thereby proving that the method of directly feeding non-protective amino acid to early-weaning lambs is a simple and effective breeding method for enhancing the lamb productivity. The invention is not only suitable for lambs, but also suitable for oxen, deer, camels and other young ruminant animals.

The invention discloses an SNP molecular marker related to chicken carcass traits and application thereof, and belongs to the technical field of gene detection. The SNP molecular marker has point mutation corresponding to the NC_006088.5:25921381 site in the chicken MDFIC gene, the SNP mutation site 25921381:C is greater than T, and three genotypes of CC, CT and TT exist. The test verifies that the CC genotype individual at the mutation site shows the highest carcass weight, semi-eviscerating weight, full eviscerating weight, shortest shin length and oblique body length, and the CT genotype individual shows the lowest carcass weight, semi-eviscerating weight, full eviscerating weight, shortest shin length and oblique body length. Therefore, the SNP molecular marker disclosed by the invention is helpful for accurately and quickly assisting in early screening of meat production performance related to carcass traits and accelerating the progress of chicken genetic breeding.

The present invention provides for selection of bovine animals that will display phenotypes associated with increased rates of growth. These phenotypes include hot carcass weight, average daily gain, shipping weight, end of test rib eye area, and adjusted weaning weight which is a measure of post-natal growth, based on the knowledge of their CRH, POMC and MC4R genotypes. The predictive value comes from the discovery that certain single nucleotide polymorphisms (SNPs) in these genes are linked to higher growth rate phenotypes. Specifically, the phenotypes that correlated with specific SNP's are end-of-test rib-eye area, adjusted weaning weight, average daily gain, shipping weight and hot carcass weight. The invention also provides novel kits that can be used in making the determination of these genotypes. The invention further provides for methods of screening bovines to predict which animals will have higher growth rate, allowing producers to selectively breed and manage animals based on desired characteristics, thereby maximizing productivity and profitability in commercial meat production operations.

The present invention provides for selection of livestock animals, including bovines, whose genotypes based in the STAT6 gene are correlated with phenotypes reflecting desirable carcass and feedlot traits. These phenotypes include back fat (BFAT), calculated yield grade (CALCYG), cutability (CUT), hot carcass weight (HCW), dry matter intake (DMI), days on feed (DOF), back fat rate (BFAT RATE) and average daily gain (ADG), based on the knowledge of the STAT6 genotypes. The predictive value is based in part on the discovery that certain single nucleotide polymorphisms (SNPs) within the STAT6 gene are linked to phenotypes of economically these important carcass and feedlot traits. Also provided are SNPs within the STAT6 gene useful in reliably distinguishing between a Bos taurus and a Bos indicus bovine. The invention provides methods and compositions for determining STAT6 genotypes and for screening livestock animals to predict which animals will have desirable carcass traits and feedlot traits, allowing producers to selectively breed and manage animals based on desired characteristics, thereby maximizing productivity and profitability in commercial meat production operations.

The invention provides a compound fermented feed for feeding fattening sheep. The compound fermented feed is characterized by being prepared by performing mixed fermentation on raw materials comprising the following components: whole-plant corn, corn germ meal, lactobacillus acidophilus, bacillus subtilis, microzymes, cellulases, xylanase and beta-glucanase. The invention further provides an application of the compound fermented feed for feeding fattening sheep. According to the compound fermented feed provided by the invention, the average daily gain of the fattening sheep can be increased, the food consumption of dry matters can be increased, the apparent digestibility of dry matters and organic compounds is improved, the daily weight gain is reduced, and the growing performance of the fattening sheep can be improved; and besides, the live weight, the carcass weight and the dressing percentage of the fattening sheep before the fattening sheep are slaughtered can be increased, and the slaughter performance of the fattening sheep is improved. The compound fermented feed provided by the invention is safe and convenient to use, and has extremely high popularization value.

A method to increase the hot carcass weight of a meat-producing animal. The method orally administers Vitamin C to a meat-producing animal between about 2 and about 48 hours prior to harvest. The animal is then harvested and a hot carcass is prepared from that harvested animal.

The invention specifically relates to an assisted selection marker for the abdominal fat weight and carcass weight of a goose bred for the liver, belonging to the technical field of poultry breeding.The assisted selection marker has a SNP site which is located at the downstream position 807 bp of the initiator codon of the MC5R gene. The invention also discloses a method for assisted selection ofthe abdominal fat weight and carcass weight characters of the goose bred for the live by using the molecular marker. The method comprises the following steps: selecting to-be-detected Landes goose individuals; drawing blood and extracting DNAs; performing a polymerase chain reaction (PCR) by using a provided kit and detecting a product; delivering the PCR product to a sequencing company for sequencing and genotype determination; and selecting qualified individuals according to the genotypes and keeping the selected qualified individuals as breeding geese. The marker and the method of the invention can overcome the disadvantages that a slaughtering determination method leads to high cost and great workload and excellent individuals cannot be kept as breeding geese, and can be used for large-scale breeding geese selection and speed up breeding process.

The invention discloses a production method for gray feather meat ducks. The method comprises the steps that 1, Liancheng white ducks and Cherry Valley ducks (SM3) are selected for direct cross, the character is fixed through athwart cross, an F series is obtained, the Liancheng white ducks and the Cherry Valley ducks (SM3) are subjected to reciprocal cross, the character is fixed through athwart cross, and an M series is obtained; 2, an F series breeding family and an M series breeding family are established, and the F series and the M series are reasonably selected and matched through a family selection and individual selection combining method; 3, the F series serves as a male parent, the M series serves as a female parent, and an F1 generation is obtained; 4, the F1 generation serves as the female parent to be backcrossed with the Cherry Valley ducks (SM3), and obtained offsprings are the gray feather meat ducks. On the basis of guaranteeing the advantages of local ducks, the growth speed is increased, the feed conversion ratio is reduced, the carcass weight is increased, and the dressing percentage is increased.

The invention discloses a breeding method for beef cattle. The method comprises the steps of selection of a breeding field, arrangement of the breeding field, variety introduction, stocking management, fattening management and cattle house management; fattening is divided into three stages of an earlier fattening period of the beef cattle, an earlier growth and development period of the beef cattle and a later fattening period, wherein in the earlier fattening period of the beef cattle, the fodder conversion rate of the cattle is high, a large amount of coarse fodder with rich nutrients and concentrated feed with rich protein are needed to be supplied to the cattle, and vitamins, mineral substances and mixed feed are appropriately supplemented to the cattle to promote development of bones,muscles and viscera; in the earlier growth and development period of the beef cattle, the cattle need to be fed with a large amount of coarse fodder to meet the physiological requirement of the digestive tracts of the cattle and the growth requirement of the bones and the muscles; in the later fattening period as a fat deposition period, the cattle need to be supplied with sufficient heat quantity, and the period is a key period of improving the beef quality, ensuring beef safety and increasing the carcass weight and the pure meat percentage and is also a beef quality improvement period. It is ensured that concentrate supplementary feed contains rich available carbohydrate. It is ensured that the supplied forage grass is high in energy, easy to digest, good in palatability and high in biological utilization value and capable of making the cattle sold on the market as early as possible.

Disclosed is a method of discriminating a bovine individual whereby proteins participating in the economical characteristics of beef cattle are identified by a proteomic analysis and a bovine individual having useful economical characteristics is discriminating with the use of these proteins as biomarkers. Also disclosed is a kit for discriminating a bovine individual to be used therein. The method of discriminating a bovine individual as described above comprises: (1) a collection step for collecting a body tissue from a bovine; (2) an extraction step for extracting all proteins from the body tissue thus collected; (3) a detection step for detecting wild type annexin A5 protein, an isoform of the wild type annexin A5 protein and a modified protein of the wild type annexin A5 protein or the isoform thereof that are contained in the all of the extracted proteins; and (4) a discrimination step for discriminating whether or not the average carcass weight is increased depending on the detected annexin A5 types. The wild type annexin A5 protein, the isoform thereof and modified proteins of the same are detected by using two-dimensional electrophoresis or an antigen-antibody reaction.

The invention belongs to the field of livestock science of agricultural science, in particular to a method of regulating Hu sheep for modification fattening. The method comprises the following steps of cleaning and sterilizing sheep's houses; selecting fattening male sheep, wherein healthy male sheep in the same variety with the weight being 13-16 kg are selected for fattening; conducting groupingand nursing, wherein the male sheep are grouped to adapt to the new environment and are subjected to de-worming operation; after de-worming, adding pulvis stomachicus to daily ration according to themass ratio of 0.2%; conducting feeding and management, wherein a fattening period is divided into three stages of March-April stage, May-June stage and July-September stage, on the former two stagesof the fattening period, a free water drinking method is adopted for the sheep, on the third stage of the fattening period, the sheep are limited to drink water within two hours after having feed. Compared with the prior art, the method of regulating the Hu sheep for modification fattening has the advantages that in the premise that the difference of marketing weights of the produced meat sheep isnot obvious, the dressing percentage is improved by 1.91%, the carcass weight is improved by 2.5 kg, the intra-muscular fat content reaches 4.15%, the shear force is lowered by 1.19 N, and the dropping loss is reduced by 0.21%.

The invention provides a Yanbian yellow cattle meat quality-related ANGPT4 gene SNP molecular marker, a primer pair, a kit and an application thereof, and belongs to the technical field of cattle meatquality screening. The Yanbian yellow cattle meat quality-related ANGPT4 gene SNP molecular marker contains a nucleotide sequence in which the polymorphism of 41995bp of a gene is C / T. The polymorphism of the ANGPT4 gene and the meat quality trait are subjected to correlation analysis; the 41995bp C / T site has the significant correlation with the characters of the fat content, the protein content, the carcass weight and the marble pattern grade of Yanbian yellow cattle; and it is showed that the fat content, the carcass weight and the marble pattern grade of a CT genotype are obviously higherthan those of a CC genotype. The protein content of the CC genotype is significantly higher than that of the CT genotype. The SNP molecular marker of the ANGPT4 gene can be used as a meat quality trait screening-related gene marker and is used for high-grade beef cattle early-stage selection of the Yanbian yellow cattle.

The invention relates to a compound feed capable of improving the growth speed and immunity of black goats and a preparation method thereof. The compound feed is prepared from, by weight, 55-75 parts of corn flour, 10-30 parts of soybean meal, 1-5 parts of rapeseed meal, 1-5 parts of bran, 0.2-0.8 part of salt, 0.1-0.6 part of premix, 5-20 parts of rice bran and 5-25 parts of traditional Chinese medicine residues, wherein the traditional Chinese medicine residues are astragalus membranaceus residues, or astragalus root, dendrobium stem and haw thorn residues and Epimedii Folium residues which are mixed according to a proportion, and the astragalus root, dendrobium stem and haw thorn residues are byproducts for producing astragalus root, dendrobium stem and haw thorn granules. According to the compound feed provided by the invention, the palatability of the feed is improved, the digestion and absorption of black goats on nutrients are promoted, and the growth speed is accelerated; and meanwhile, residual active ingredients of the traditional Chinese medicine residues improve the average daily gain of the black goats, the immunity of the black goats is improved, the growth performance of the black goats is improved, the live weight before slaughter, the carcass weight and the slaughter rate are improved, and the slaughter performance of the black goats is improved.

The invention provides a PLIN gene SNP molecular marker, a primer pair and a kit related to meat quality of Yanbian yellow cattle and application of the kit, and belongs to the technical field of yellow cattle meat quality screening. The PLIN gene SNP molecular marker related to the meat quality of the Yanbian yellow cattle contains a nucleotide sequence with polymorphism of C / T located at 103bp of third exon of the PLIN gene. Correlation analysis is conducted on the polymorphism of the PLIN gene with the moisture content, the fat content, the protein content, the pre-slaughter weight, the carcass weight and the backfat thickness character of the Yanbian yellow cattle meat, the results show that 103bp C / T locus is significantly correlated with the fat content, the pre-slaughter weight, thecarcass weight and the backfat thickness of the Yanbian yellow cattle, and a situation is shown that the four characters of the fat content, the pre-slaughter weight, the carcass weight and the backfat thickness of the CT genotype are significantly higher than that of the CC genotype. The detection of the 103bp C / T locus of the Yanbian yellow cattle can be used for early selection of top-grade beef of the Yanbian yellow cattle.

The invention belongs to the technical field of animal nutriology, and relates to a daily ration for fattening cattle in winter. The daily ration is prepared from the following raw materials in percentage by weight: 20%-30% of the compound ammoniation-treated feed, 20%-30% of silage, 10%-15% of steam-flaked corn, 10%-15% of palm meal, 10%-15% of corn germ meal, 1%-10% of sunflower seed meal, 1%-5%of rice bran meal, 5%-10% of bran, 1%-5% of medical stones, 0.5%-1% of calcium powder, 0.5%-1% of table salt and 1% of a premix. The daily ration can fundamentally eliminate rumen acidosis of fattening cattle, significantly reduce the cost of the daily ration for fattening cattle, and significantly improve the daily weight gain, carcass weight, slaughtering rate, net meat rate, meat-bone ratio and meat-fat ratio of fattening cattle.

Aqueous compositions and methods using the compositions for preventing or minimizing live body weight loss in livestock animals subjected to a prolonged period of feed deprivation, e.g., such as during the period before slaughter or during a period surrounding transportation from one location to another location (e.g., before, during and / or after), and / or for minimizing carcass weight loss or carcass yield loss, and / or meat quality deterioration and / or for preventing or minimizing deterioration of the well-being or health of livestock animals subjected to a prolonged period of feed deprivation, e.g., such as during the period before slaughter or during a period surrounding transportation from one location to another location (e.g., before, during and / or after).

The invention belongs to the technical field of animal threpsology, and relates to a summer fattening cattle daily ration. The summer fattening cattle daily ration is prepared from the following raw materials in percentage by weight: 20 to 30 percent of compound ammoniated treatment feed, 20 to 30 percent of silage, 10 to 15 percent of palm meal, 10 to 15 percent of corn germ meal, 10 to 15 percent of bran, 1 to 10 percent of sunflower seed meal, 1 to 5 percent of rice bran meal, 1 to 5 percent of medical stone, 0.5 to 1 percent of calcium powder, 0.5 to 1 percent of table salt and 1 percent of premix compounds. The summer fattening cattle daily ration has the advantages that a ruminal acidosis phenomenon of fattening cattle can be fundamentally eliminated; the cost of the cost fattening cattle daily ration is obviously reduced; the daily weight increase, the carcass weight, the dressing percentage, the pure meat percentage, the meat-bone ratio and the meat-fat ratio of the fattening cattle are obviously increased; and under the conditional shed raising conditions, the heat stress response of the fattening cattle in summer is obviously reduced.

There are provided a method for screening individual cattle having useful economic traits in which proteins related to the economic traits of beef cattle are identified by proteomics and are used as biomarkers, and a cattle screening kit for use in the method. The method for screening individual cattle according to the present invention includes the steps of (1) harvesting body tissue from the cattle, (2) extracting the full complement of proteins from the body tissue harvested, (3) detecting a wild-type annexin A5 protein, an isoform of the wild-type annexin A5 protein, or a modified protein of the wild-type annexin A5 protein or the isoform thereof in the full complement of proteins extracted, and (4) determining whether or not the cattle will have a high average carcass weight on the basis of the type of annexin A5 detected. The wild-type annexin A5 protein, the isoform thereof, and the modified protein thereof are detected by two-dimensional electrophoresis or an antigen-antibody reaction.

The invention belongs to the field of animal husbandry science of agricultural science and technology, and specifically relates to a method for modifying and fattening Hu sheep for meat, comprising the following steps: cleaning and disinfection of pens; selection of fattening male lambs: adopting 13-16kg lambs with the same variety and healthy body fattening of male lambs; grouping and care: grouping the lambs, adapting the grouped lambs and implementing deworming operations; after deworming, add Jianwei powder, which is added to the diet at a mass ratio of 0.2%; feeding and management : The fattening period is divided into three stages, 3-4 months old, 5-6 months old, and 7-9 months old. In the first two stages of fattening, lambs are allowed to drink water freely, and in the third stage of fattening , Limit the lamb's drinking water within 2 hours after eating. Compared with the prior art, the beneficial effect of the present invention is: the mutton sheep produced by the present invention, under the premise that there is no obvious difference in slaughter weight, the slaughter rate is increased by 1.91%, the carcass weight is increased by 2.5kg, and the muscle fat content reaches 4.15%. The shear force is reduced by 1.19N, and the drip loss is reduced by 0.21%.