المؤلفون: Krishnaraj Thirugnanasambantham, Yea Hwang Moon, Youl Chang Baek, Kyoung Hoon Kim, Rajaraman Bharanidharan, Sun Sik Jang, Ridha Ibidhi, Geumhwi Bang

المصدر: Animals : an Open Access Journal from MDPI
Animals, Vol 11, Iss 3378, p 3378 (2021)
Animals; Volume 11; Issue 12; Pages: 3378

مصطلحات موضوعية: SNAP23, CD36, Veterinary medicine, Adipose tissue, GPAT1, Biology, Article, chemistry.chemical_compound, Animal science, Adipocyte, SF600-1100, fatty acid composition, Hanwoo steer, lipogenesis, chemistry.chemical_classification, ACACA, General Veterinary, Fatty acid, Lipid metabolism, chemistry, QL1-991, Lipogenesis, Hanwoo, biology.protein, Animal Science and Zoology, Zoology

الوصف: Simple Summary Intramuscular fat or fatty acids content was regarded as a quality index of meat as it increases meat tenderness and flavor. In Korea, commercial Hanwoo farms have been supplying concentrate feeds that are 2–3% higher in crude protein (CP) content rather than conventional feeds throughout the entire program and have tried to shorten the feeding period to less than 28 months of age. This has led to a probable stability in lean-to-fat ratio in Hanwoo steers from 19 to 21 months of age. This stability could be linked to the regulation of the gene expression mediating lipogenesis during this phase. However, there is a lack of data regarding the effects of the protein level in isoenergetic concentrate diets on transcriptional activity of such genes at this phase. The conventional feeding program and the current one with relatively higher CP content were compared in two groups of twenty Hanwoo steers. Results showed that higher CP endorsement during the growing phase increased the expression of intramuscular PPARα (p < 0.1) and LPL (p < 0.05) and decreased the genes, such as VLCAD (p < 0.01), GPAT1 (p = 0.001), and DGAT2 (p = 0.016), which are involved in lipogenesis and fatty acid esterification. This may result in a relatively lower lipid turnover which could be responsible for shortening the feeding period. Abstract The present study evaluated the influence of dietary protein level on growth performance, fatty acid composition, and the expression of lipid metabolic genes in intramuscular adipose tissues from 18- to 23-month-old Hanwoo steers, representing the switching point of the lean-to-fat ratio. Forty steers with an initial live weight of 486 ± 37 kg were assigned to one of two treatment groups fed either a concentrate diet with 14.5% CP and or with 17% CP for 6 months. Biopsy samples of intramuscular tissue were collected to analyze the fatty acid composition and gene expression at 23 months of age. Throughout the entire experimental period, all steers were restrained twice daily to allow individual feeding. Growth performance, blood metabolites, and carcass traits, according to ultrasonic measurements, were not affected by the experimental diets. The high-protein diet significantly increased the expression of intramuscular PPARα (p < 0.1) and LPL (p < 0.05) but did not affect genes involved in fatty acid uptake (CD36 and FABP4) nor lipogenesis (ACACA, FASN, and SCD). In addition, it downregulated intramuscular VLCAD (p < 0.01) related to lipogenesis but also GPAT1 (p = 0.001), DGAT2 (p = 0.016), and SNAP23 (p = 0.057), which are involved in fatty acid esterification and adipocyte size. Hanwoo steers fed a high-protein diet at 18–23 months of age resulted in a relatively lower lipid turnover rate than steers fed a low-protein diet, which could be responsible for shortening the feeding period.

وصف الملف: application/pdf

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3343b442f8bc504874f08be543f38599Test
http://europepmc.org/articles/PMC8697893Test

المؤلفون: Sun Sik Jang, Youl Chang Baek, Young Kyoon Oh, Kang Yeon Lee, Keun Kyu Park, Gyuchul Ahn

المصدر: Asian-Australasian Journal of Animal Sciences, Vol 33, Iss 5, Pp 856-865 (2020)
Asian-Australasian Journal of Animal Sciences

مصطلحات موضوعية: Absorption of water, 040301 veterinary sciences, lcsh:Animal biochemistry, Pinus rigida, Article, Pinus kesiya, animal welfare, 0403 veterinary science, Animal science, lcsh:QP501-801, lcsh:SF1-1100, biology, Moisture, Chemistry, Environment and Management, ammonia emission, 0402 animal and dairy science, bedding, 04 agricultural and veterinary sciences, Pinus armandii, biology.organism_classification, 040201 dairy & animal science, Bulk density, sawdust, visual_art, Hanwoo, visual_art.visual_art_medium, Animal Science and Zoology, lcsh:Animal culture, Sawdust, wood shavings, Food Science

الوصف: Objective: This study was conducted to evaluate the physicochemical properties and changes in moisture concentrations of bedding materials under the conditions of rearing Korean Hanwoo cows.Methods: Two experiments were conducted to investigate the physicochemical characteristics (Exp. I) and usefulness as beddings for rearing cattle (Exp. II) by the type of beddings such as sawdust (SD), wood shavings (WS) and sawdust+wood shavings (S+W; 1:1 in volume), and the species of pine trees from different countries of origins (China, Pinus armandii, AR; Vietnam, Pinus kesiya, KE; USA, Pinus rigida, RI).Results: In Exp. I, SD-AR showed the largest proportion (78.3%) of fine particles (250 μm+ below 250 μm) and the highest bulk density (208 kg/m3) among treatments (p2) of ammonia emissions were the lowest (p

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66dc67c8ecb91df7517461093164332cTest
https://doi.org/10.5713/ajas.19.0519Test

المؤلفون: Ui-Hyung Kim, So-Mi Hwang, Shil Jin, Sang-Rae Cho, Sun-Sik Jang, Eung-Gi Kwon, Jeong-Il Won, Hyun-Jeong Lee, Sung-Sik Kang, Gi-Suk Jang, Eun Mi Lee, Kyung-Woon Kim, Byung-Ki Park, Jun-Sang Ahn

المصدر: Animals, Vol 11, Iss 2490, p 2490 (2021)
Animals : an Open Access Journal from MDPI
Animals
Volume 11
Issue 9

مصطلحات موضوعية: endocrine system, Marbled meat, adipocytes, Veterinary medicine, Beef cattle, Biology, Body weight, Article, chemistry.chemical_compound, Animal science, net income, SF600-1100, Testosterone, hemi-castration, Serum testosterone, General Veterinary, marbling score, Us dollar, Castration, chemistry, QL1-991, Hanwoo, testosterone, Animal Science and Zoology, Zoology

الوصف: We evaluated the growth performance, serum testosterone, carcass traits, histological characteristics, and economic efficacy of castrated and hemi-castrated Korean beef cattle. Thirty-two Hanwoo calves (Initial body weight: 148.4 ± 19.8 kg) were randomly assigned into the castrated Hanwoo (CH) and hemi-castrated Hanwoo (HH) group. The experiment lasted 18 months
the animals were all slaughtered on the same day. Final body weight and average daily gain (ADG) tended to increase in the HH group compared to the CH group. Testosterone concentration was higher in HH group (5.27–14.27 ng/dL) than in the CH group (0.47–0.70 ng/dL) during the whole experimental period after castration (p <
0.05). Rib eye area was 17.08 cm2 wider in HH group than in CH group, but marbling score was improved by 3.33 in CH group compared to HH group (p <
0.01). Deposition area of adipocytes in Longissimus dorsi were higher in CH group than in HH group (p <
0.001). Net income per head was 1760 US dollar higher in the CH group than in the HH group (p <
0.04). Thus, our findings suggest that hemi-castration had positive effects on the increase in ADG and meat yield traits, with negative effects on marbling and profitability.

وصف الملف: application/pdf

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::063b8cc16bb8e806165bb4f920a7fb13Test
https://www.mdpi.com/2076-2615/11/9/2490Test

المؤلفون: Ye Ri Ju, Youl Chang Baek, Yong Sik Kim, Sung Suk Lee, Young Kyoon Oh, Keun Kyu Park, Sun Sik Jang

المصدر: Asian-Australasian Journal of Animal Sciences
Asian-Australasian Journal of Animal Sciences, Vol 33, Iss 6, Pp 930-940 (2020)

مصطلحات موضوعية: education, lcsh:Animal biochemistry, Forage, Total mixed ration, Biology, Feed conversion ratio, Article, Ruminant Nutrition and Forage Utilization, 03 medical and health sciences, Animal science, Oak Roughage, Rumen Degradability, Tannin, Animal behavior, Dry matter, lcsh:QP501-801, 030304 developmental biology, lcsh:SF1-1100, chemistry.chemical_classification, 0303 health sciences, Animal Performance, Animal Behavior, 0402 animal and dairy science, food and beverages, 04 agricultural and veterinary sciences, Rice straw, 040201 dairy & animal science, chemistry, Hanwoo, Animal Science and Zoology, lcsh:Animal culture, Steam Digestion, Food Science

الوصف: Objective: This study was conducted to evaluate changes in nutritional value and in situ dry matter (DM) degradability of oak and pine wood before and after steam-digestion process (60 min/160°C/6 atm) and feeding effect of the oak roughage on performance and behavior of Hanwoo steers.Methods: Chemical composition and tannin concentration were analyzed for oak and pine trees before and after the pretreatment. In situ DM and effective degradability of these samples were assessed using a nylon bag method. In vivo trial was performed to estimate animal performance and behavior, using steers fed total mixed ration (TMR) diets containing 0% (control), 25% (OR-25), and 50% (OR-50) of the oak roughage. Eighteen steers were allocated into nine pens (2 steers/pen, 3 pens/treatment) for 52 days according to body weight (BW) and age.Results: By the steam-digestion treatment, the neutral detergent-insoluble fiber was decreased from 86.5% to 71.5% for oak and from 92.4% to 80.5% for pine, thereby increasing non-fiber carbohydrate. In situ DM degradability of treated oak reached 38% at 72 h, whereas that of untreated oak was only 11.9%. The 0 h degradability of the treated pine increased from 5.9% to 12.1%, but the degradability was unchanged thereafter. Animal performance including BW, average daily gain, DM intake, and feed conversion ratio was not different among control and oak treatments. No differences were detected in animal behavior such as lying, standing, rumination, drinking, and eating, except walking. Walking was higher in control than oak treatments with numerically higher eating and lower lying times, probably due to bulkier characteristics of rice straw in the diet.Conclusion: This study demonstrates that the oak roughage can be substituted for 50% of total forage or 100% of rice straw in TMR diets at early fattening stage of Hanwoo steers.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0585e59e52ea3a2e7efd80646f5f909Test
https://pubmed.ncbi.nlm.nih.gov/32054172Test

المؤلفون: Sun Sik Jang, Jong Nam Kim, Kwang Hyeon Cho, Kyoung Hoon Kim, Yang Won Woo, Chang Hyun Lee, Bharanidharan Rajaraman, Do-Hyung Kim

المصدر: Journal of The Korean Society of Grassland and Forage Science. 37:308-314

مصطلحات موضوعية: In situ, Chemistry, Environmental chemistry, Dry matter, Methane production, Processing methods

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::43445898defe5d233b7e52b54768e242Test
https://doi.org/10.5333/kgfs.2017.37.4.308Test

المؤلفون: Young Kyun Oh, Hyung Jun Kwak, Sang-Rak Lee, Gyu Chul Ahn, Sun Sik Jang, Keun Kyu Park

المصدر: Asian-Australasian Journal of Animal Sciences
Asian-Australasian Journal of Animal Sciences, Vol 29, Iss 4, Pp 599-605 (2016)
ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES(29): 4

مصطلحات موضوعية: Bedding, Absorption of water, Ammonia Emission, lcsh:Animal biochemistry, Wood shavings, 02 engineering and technology, Beef cattle, Animal Welfare, Article, Animal science, lcsh:QP501-801, lcsh:SF1-1100, Moisture, Chemistry, 0402 animal and dairy science, Rrice Hulls, 04 agricultural and veterinary sciences, Sawdust, 021001 nanoscience & nanotechnology, Rice hulls, 040201 dairy & animal science, Ammonia emission, Wood Shavings, AmmoniaEmission, visual_art, Hanwoo, visual_art.visual_art_medium, Animal Science and Zoology, lcsh:Animal culture, 0210 nano-technology, Food Science

الوصف: In this study, two experiments were conducted to investigate the physicochemical characteristics (Exp. I) of bedding materials such as rice hulls (RH), sawdust (SD), wood shavings (WS) and sawdust+wood shavings (S+W; 1: 1 in volume), and utilization of these beddings except RH (Exp. II) for rearing beef cattle. In Exp. I, the distribution of particle size (%) with 250 mu m and below 250 mu m was greater (p

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7a972242b12fe3bcbd74a2e6a22b53eTest
http://europepmc.org/articles/PMC4782097Test

المؤلفون: Kwang-Seok Ki, Dong-Hyun Lim, Sang Bum Kim, Tae-Il Kim, Ji-Hoo Park, Seong-Min Park, Sun-Sik Jang, Vijayakumar Mayakrishnan

المصدر: Tropical animal health and production. 50(7)

مصطلحات موضوعية: 0301 basic medicine, Hydrocortisone, Feed additive, Bacillus subtilis, Biology, Blood Urea Nitrogen, 03 medical and health sciences, Korean Native, chemistry.chemical_compound, Animal science, Food Animals, Republic of Korea, medicine, Animals, Animal Husbandry, Progesterone, Triglycerides, Estradiol, Cholesterol, Body Weight, 0402 animal and dairy science, 04 agricultural and veterinary sciences, biology.organism_classification, 040201 dairy & animal science, Animal Feed, Hormones, Diet, 030104 developmental biology, chemistry, Blood chemistry, Dietary Supplements, Urea, Animal Science and Zoology, Cattle, Female, Hormone, medicine.drug

الوصف: An experiment was conducted to evaluate the effects of supplementing feed additives of Barodon®, effective microorganism® (Bacillus (B.) subtilis), and Ampbio® on the growth performance, blood metabolites, stress, and reproductive hormone levels of Korean native heifers. A total of 48 Korean native heifers were assigned to four groups with 6 heifers in each group. The groups were control, Barodon (0.2%), beneficial microorganism (1%), and Ampbio (1%). Animals in all groups were fed a basal diet composed of selected feed additives and water ad libitum for 99 days. Results showed that there are significant changes in body weight and daily gain in the Ampbio-supplemented group as compared with the control and other feed additives groups (p 0.05). The increased level of feed intake (7.30 ± 0.03 kg) and feed requirements (10.81 ± 0.52 kg) was observed in the Ampbio-fed group followed by the effective microorganism (EM), Barodon, and control groups. There were no significant changes in albumin, glucose, glutamic oxaloacetic transaminase (SGOT), serum pyruvic transaminase (SGPT), and total protein level, but the decreased levels of total cholesterol and triglycerides and the increased level of blood urea nitrogen were noted in the Ampbio-fed group as compared with the control and other feed additive groups. The reduced level of cortisol (p 0.05) and elevated levels of progesterone and estradiol (p 0.05) were noted in the Ampbio-fed group as compared to the other feed additive groups. It is therefore concluded that incorporation of Barodon, EM (B. subtilis), and Ampbio in the recommended diet improved the growth and health performance of Korean native heifers.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37e245155a79ab9ff665e759b3c53366Test
https://pubmed.ncbi.nlm.nih.gov/29721804Test

المؤلفون: Beom Young Park, Vijayakumar Mayakrishnan, Sun Sik Jang, Dong Hyun Lim, Tae-Il Kim, Kwang Soo Baek

المصدر: International journal of biological macromolecules. 112

مصطلحات موضوعية: 0106 biological sciences, 0301 basic medicine, Escherichia, Glycoside Hydrolases, Chryseobacterium indologenes, Nitrogen, Chitin, 01 natural sciences, Biochemistry, Acetylglucosamine, 03 medical and health sciences, chemistry.chemical_compound, Structural Biology, 010608 biotechnology, Enzymatic hydrolysis, Yeast extract, Chitosanase, Food science, Molecular Biology, Phylogeny, Chryseobacterium, Chitosan, Chitosanase activity, biology, Hydrolysis, Chitinases, Escherichia fergusonii, General Medicine, biology.organism_classification, Carbon, carbohydrates (lipids), 030104 developmental biology, chemistry, Comamonas, Chitinase, biology.protein, Salts, Chromatography, Thin Layer

الوصف: The important platform polysaccharide N-acetylglucosamine (GlcNAc) has great potential to be used in the fields of food, cosmetics, agricultural, pharmaceutical, medicine and biotechnology. This GlcNAc is being produced by traditional methods of environment-unfriendly chemical digestion with strong acids. Therefore, researchers have been paying more attention to enzymatic hydrolysis process for the production of GlcNAc. Hence, in this study, we isolated novel chitinase (Escherichia fergusonii) and chitosanase (Chryseobacterium indologenes, Comamonas koreensis) producing strains from Korean native calves feces, and developed the potential of an eco-friendly microbial progression for GlcNAc production from swollen chitin and chitosan by enzymatic degradation. Maximum chitinase (7.24±0.07U/ml) and chitosanase (8.42±0.09, 8.51±0.25U/ml) enzyme activity were reached in submerged fermentation at an optimal pH of 7.0 and 30°C. In this study, sucrose, yeast extract, (NH4)2SO4, and NaCl were found to be the potential enhancers of exo-chitinase activity and glucose, corn flour, yeast extract, soybean flour, (NH4)2SO4, NH4Cl and K2HPO4 were found to be the potential activator for exo-chitosanase activity. Optimum concentrations of the carbon sources for enhanced chitinase activity were 9.91, 3.21, 9.86, 1.66U/ml and chitosanase activity were 1.63, 1.13, 2.28, 3.71, 9.02, 4.93, and 2.14U/ml. These enzymes efficiently hydrolyzed swollen chitin and chitosan to N-acetylglucosamine were characterized by thin layer chromatography and were further confirmed by high-pressure liquid chromatography. From a commercial perspective, we isolated, optimized and characterized exochitinase from Escherichia fergusonii (HANDI 110) and chitosanase from Chryseobacterium indologenes (HANYOO), and Comamonas koreensis (HANWOO) for the large-scale production of GlcNAc facilitating its potential use in industrial applications.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3368c70c94d18bec4780d444d13767c5Test
https://pubmed.ncbi.nlm.nih.gov/29452184Test

المؤلفون: Keun Kyu Park, Gyu Chul Ahn, Sun Sik Jang, Kang Yeon Lee, Wan Sup Kwak, Young Kyun Oh

المصدر: ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES(29): 3
Asian-Australasian Journal of Animal Sciences
Asian-Australasian Journal of Animal Sciences, Vol 29, Iss 3, Pp 444-454 (2016)

مصطلحات موضوعية: 0301 basic medicine, Bedding, Absorption of water, Animal Welfare, Sawdust, Cocopeat, Ammonia Emission, Cattle, lcsh:Animal biochemistry, Article, 03 medical and health sciences, Animal science, Bedding Material, lcsh:QP501-801, lcsh:SF1-1100, Moisture, Chemistry, 0402 animal and dairy science, 04 agricultural and veterinary sciences, 040201 dairy & animal science, Ammonia emission, 030104 developmental biology, visual_art, Hanwoo, Air blowing, visual_art.visual_art_medium, Animal Science and Zoology, lcsh:Animal culture, Food Science

الوصف: This study was designed to examine the characteristics of sawdust and cocopeat bedding materials, including physicochemical properties (Exp. I) and on-farm trial (Exp. II). In Exp. I, the proportion of particle size was in the order of sawdust> cocopeat India>cocopeat Vietnam (pcocopeat Vietnam>sawdust (p

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fd0cb511d78268bd0bb7759bb5fe44dTest
http://open-repository.kisti.re.kr/cube/handle/open_repository/475869.doTest

المؤلفون: Eun Mi Lee, Bo Hye Park, Seung Hak Yang, Sun Sik Jang, Dong Hun Kang, Eung Gi Kwon, Ui Hyung Kim, Ki Yong Chung

المصدر: Korean Journal of Agricultural Science. 43

مصطلحات موضوعية: 0301 basic medicine, medicine.medical_specialty, Lipopolysaccharide, business.industry, Feed additive, Albumin, law.invention, 03 medical and health sciences, Red blood cell, Probiotic, chemistry.chemical_compound, 030104 developmental biology, medicine.anatomical_structure, NEFA, Endocrinology, chemistry, law, White blood cell, Internal medicine, medicine, Platelet, business

الوصف: This study hypothesized that dietary feed additive containing probiotics alter either immune-related serum substances or serum metabolites in Hanwoo heifers. A probiotic treatment was given at 0.5% top-dressing of concentrate diet for 6 months. The change of immunological indicators in the blood was analyzed under LPS (Lipopolysaccharide) challenge. One day before administration of LPS, all heifers were fitted with an indwelling jugular vein catheter for serial blood collections. Both a serum tube and an EDTA-coated tube were collected at 30-min intervals from - 2 to 8 hours relative to the LPS challenge at time 0 (1 ㎍/㎏ of BW). Serum was used for analyzing albumin (ALB), glucose (GLU), total protein (TP), triglycerides (TG), phosphorus (IP), and non-esterified fatty acids (NEFA). Plasma was used for analyzing white blood cell (WBC), red blood cell (RBC), platelet (PLT) and inflammation-related factors (NE, LY, MO, EO, BA, Hb, HCT, MCV, MCH, MCHC, RDW, MPV). There were significant differences in ALB, GLU, TG, IP, and NEFA concentration with the passage of hours post challenge (p 0.05). The level of WBC, EO, LY, and MO were reduced after LPS challenge (p > 0.05). In conclusion, LPS challenge after dietary supplementation of probiotics changed the levels of both serum metabolites and inflammation-related factors. The increase of GLU and TG indicated a probiotics-positive response under LPS challenge (p < 0.05).

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::1399d7084dd203090f70e41fc10c9280Test
https://doi.org/10.7744/kjoas.20160086Test