Journal of Animal Science and Technology最新文献

{"title":"Accomplishment of canine cloning through <i>in vitro</i> matured oocytes: a pioneering milestone.","authors":"Kukbin Ji, Kangsun Park, Dongern Kim, Eunyoung Kim, Taeyoung Kil, Minkyu Kim","doi":"10.5187/jast.2024.e18","DOIUrl":"10.5187/jast.2024.e18","url":null,"abstract":"<p><p>The <i>in vitro</i> maturation (IVM) rate of canine oocytes remains low compared to other mammals due to their unique reproductive characteristics. This study aimed to explore the effect of hormone supplementation during the IVM of canine immature oocytes on nuclear maturation and subsequently assess its potential application in canine somatic cell nuclear transfer (SCNT). Immature oocytes were collected and cultured in an IVM medium supplemented with hormones (follicle-stimulating hormone [FSH] and progesterone [P4]) or without hormones (control) for 24 hours. The maturation rates of oocytes in the hormone-treated group (94.92 ± 3.15%) were significantly higher than those in the control group (61.01 ± 4.23%). Both <i>in vitro</i> and <i>in vivo</i> matured oocytes underwent NT to evaluate their utility, and the fusion rates were higher in the <i>in vitro</i> matured group than those in the vivo matured group, not significant between <i>in vivo</i> and <i>in vitro</i> matured group (73.28% and 82.35%, respectively). As a result, 14 fused embryos from the <i>in vitro</i> matured group were transferred into two surrogates, with one surrogate achieving a successful pregnancy and delivering four puppies. Whereas in the <i>in vivo</i> matured group, 85 fused embryos were transferred to 8 surrogate mothers, leading to three surrogates becoming pregnant and delivering one, four, and two puppies. The pregnancy rates were not significant between both groups (50% and 37.50%), but the number of offspring exhibited a significant difference (28.57% and 8.23%). In conclusion, we achieved a remarkable milestone by successfully producing cloned puppies using <i>in vitro</i> matured oocytes, underscoring the feasibility of canine cloning from <i>in vitro</i> recovered oocytes. It is important to note that this study focused only on immature oocytes after ovulation and only during the estrus stage. Further research targeting other stages of the estrous cycle could potentially enhance canine cloning efficiency.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"66 3","pages":"577-586"},"PeriodicalIF":2.7,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11222123/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141554853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Determination of optimal energy system and level for growing pigs.","authors":"Sangwoo Park, Jeehwan Choe, Jin Ho Cho, Ki Beom Jang, Hyunjin Kyoung, Kyeong Il Park, Yonghee Kim, Jinmu Ahn, Hyeun Bum Kim, Minho Song","doi":"10.5187/jast.2023.e63","DOIUrl":"10.5187/jast.2023.e63","url":null,"abstract":"<p><p>This study mainly evaluated the responses in growth performance of growing pigs to different energy systems and energy levels in diets. Subsequently, we compared the nutrient digestibility and digestible nutrient concentrations of each energy level diet. In experiment 1, a total of 144 growing pigs with an average initial body weight (BW) of 26.69 ± 7.39 kg were randomly allotted to six dietary treatments (four pigs/pen; six replicates/treatment) according to a 2 × 3 factorial arrangement resulting from two energy systems (metabolizable energy [ME] and net energy [NE]) and three energy levels (low [LE], recommended [C], and high energy [HE]). Pigs were fed the experimental diets for 6 weeks and were allowed free access to feed and water during the experimental period. In experiment 2, 12 growing pigs with an average initial BW of 27.0 ± 1.8 kg were randomly allotted to individual metabolism crates and fed the six diets in a replicated 6 × 6 Latin square design. The six dietary treatments were identical to those used in the growth trial. Pigs were fed their respective diets at 2.5 times the estimated energy requirement for maintenance per day, and this was divided into two equal meals provided twice per day during the experimental period. Differences in energy systems and energy levels had no significant effect on the growth performance or nutrient digestibility (except acid-hydrolyzed ether extract [AEE]) of growing pigs in the current study. However, the digestible concentrations of ether extract, AEE, and acid detergent fiber (g/kg dry matter [DM]) in diets significantly increased (<i>p</i> < 0.05) with increasing energy levels. Additionally, there was a tendency (<i>p</i> = 0.09) for an increase in the digestible crude protein content (g/kg DM) as the energy content of the diet increased. Consequently, differences in energy systems and levels did not affect the BW, average daily gain, and average daily feed intake of growing pigs. This implies that a higher variation in dietary energy levels may be required to significantly affect growth performance and nutrient digestibility when considering digestible nutrient concentrations.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"66 3","pages":"514-522"},"PeriodicalIF":2.7,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11222115/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141554854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Impact of Overnight Lairage on Meat Quality and Storage Stability of Pork Loin","authors":"Minwoo Choi, Dongheon Lee, Hyun Jung Lee, K. Nam, S. Moon, Jong Hyun Jung, C. Jo","doi":"10.5187/jast.2023.e138","DOIUrl":"https://doi.org/10.5187/jast.2023.e138","url":null,"abstract":"","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"4 7‐8","pages":""},"PeriodicalIF":2.3,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139148789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Standardized ileal digestible methionine requirements for 22 to 29-d-old male broilers based on the growth performance and feather development","authors":"S. An, Changsu Kong","doi":"10.5187/jast.2023.e139","DOIUrl":"https://doi.org/10.5187/jast.2023.e139","url":null,"abstract":"","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"349 17‐18","pages":""},"PeriodicalIF":2.3,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139149150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Meat yield and quality characteristics of Woori heukdon pigs as affected by dietary amino acids and chromium supplementation","authors":"Van-Ba Hoa, Ye-Jin Min, Hyun-Wook Kim, Sung-Sil Moon, Dong-Heon Song, Yunseok Kim, In-Seon Bae, Dong Gyun Kim, Soo-Hyun Cho","doi":"10.5187/jast.2023.e136","DOIUrl":"https://doi.org/10.5187/jast.2023.e136","url":null,"abstract":"","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"46 24","pages":""},"PeriodicalIF":2.3,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139180457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Long noncoding RNA network for lncRNA-mRNA interactions throughout swine estrous cycle reveals developmental and hormonal regulations in reproductive tissues.","authors":"Junmo Kim, Yoon-Been Park, C. Lim, Byeonghwi Lim","doi":"10.5187/jast.2023.e137","DOIUrl":"https://doi.org/10.5187/jast.2023.e137","url":null,"abstract":"","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"91 ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139179901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Complete genome sequence of Lactiplantibacillus plantarum strain\u0000 GA_C_14 with potential characteristics applicable in the swine\u0000 industry","authors":"S. Ryu, Hyunok Doo, Eun Sol Kim, Gi Beom Keum, Jinok Kwak, Sriniwas Pandey, Yejin Choi, Juyoun Kang, Sheena Kim, Hyeun Bum Kim, Ju-Hoon Lee","doi":"10.5187/jast.2023.e134","DOIUrl":"https://doi.org/10.5187/jast.2023.e134","url":null,"abstract":"","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"18 11","pages":""},"PeriodicalIF":2.3,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138592562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Protective effects of enzymatically digested velvet antler\u0000 polypeptides on mitochondria in primary astrocytes","authors":"Y. Paing, Sung Hoon Lee","doi":"10.5187/jast.2023.e135","DOIUrl":"https://doi.org/10.5187/jast.2023.e135","url":null,"abstract":"","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"33 4","pages":""},"PeriodicalIF":2.3,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138593417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sperm hyperactivation and the CatSper channel: Current understanding and future contribution of domestic animals","authors":"Jae Yeon Hwang","doi":"10.5187/jast.2023.e133","DOIUrl":"https://doi.org/10.5187/jast.2023.e133","url":null,"abstract":"In female tract, mammalian sperm develop hyperactivated motility which is a key physiological event for 18 sperm to fertilize eggs. This motility change is triggered by Ca 2+ influx via the sperm-specific Ca 2+ channel, 19 CatSper. Although previous studies in human and mice largely contributed to understanding CatSper and 20 Ca 2+ signaling for sperm hyperactivation, the differences on their activation mechanisms are not well 21 understood yet. There are several studies to examine expression and significance of the CatSper channel in 22 non-human and non-mouse models, such as domestic animals. In this review, I summarize key knowledge 23 for the CatSper channel from previous studies and propose future aspects for CatSper study using sperm","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"329 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139211865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Growth performance and nitrogen excretion of broiler chickens fed low protein diets supplemented with crystalline amino acids","authors":"I. Cho, S. An, J. Yoon, Nyun Namgung, Changsu Kong","doi":"10.5187/jast.2023.e131","DOIUrl":"https://doi.org/10.5187/jast.2023.e131","url":null,"abstract":"","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"48 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139209977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}