JAST (Journal of Animal Science and Technology)

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2020 Impact Factor: 2.225

About Journal of Animal Science and Technology

Journal of Animal Science and Technology (JAST) is a peer-reviewed, open access journal publishing original research, review articles and notes in all fields of animal science. Topics covered by the journal include: genetics and breeding, physiology, nutrition of monogastric animals, nutrition of ruminants, animal products (milk, meat, eggs and their by-products) and their processing, grasslands and roughages, livestock environment, animal biotechnology, animal behavior and welfare. The journal is indexed in SCOPUS, PubMed Central, DOAJ, Google Scholar, Crossref and Korea Citation Index.
REVIEW

Jul 31, 2021

Principal protocols for the processing of cultured meat

Seung Yun Lee, Hea Jin Kang, Da Young Lee, Ji Hyeop Kang, Sivasubramanian Ramani, Sungkwon Park, Sun Jin Hur

J Anim Sci Technol 2021;63(4):673-680.
https://doi.org/10.5187/jast.2021.e40

The purpose of this study was to establish a basic principal procedure for the processing of cultured meat. The first stage involved isolating satellite cells from the desired muscle of an animal using enzymatic digestion (i.e., by using proteases, collagenases, and pronases). The second stage involved culturing the isolated muscle satellite cells in a growth medium containing fetal bovine serum and penicillin/streptomycin with growth factors for an optimal period of time. The second stage involved a basic method for the isolated muscle cells t...
REVIEW

Jul 31, 2021

Technical requirements for cultured meat production: a review

Sivasubramanian Ramani, Sunjin Hur, Jungsun Kang, Chang-Kyu Lee, Cheorun Jo, Woosang Kim, Changjun Cho, Bosung Kim, Deunsol Ko, Sungkwon Park

J Anim Sci Technol 2021;63(4):681-692.
https://doi.org/10.5187/jast.2021.e45

Environment, food, and disease have a selective force on the present and future as well as our genome. Adaptation of livestock and the environmental nexus, including forest encroachment for anthropological needs, has been proven to cause emerging infectious diseases. Further, these demand changes in meat production and market systems. Meat is a reliable source of protein, with a majority of the world population consumes meat. To meet the increasing demands of meat production as well as address issues, such as current environmental pollution, an...
REVIEW

Jul 31, 2021

In-vitro meat: a promising solution for sustainability of meat sector

Pavan Kumar, Neelesh Sharma, Shubham Sharma, Nitin Mehta, Akhilesh Kumar Verma, S Chemmalar, Awis Qurni Sazili

J Anim Sci Technol 2021;63(4):693-724.
https://doi.org/10.5187/jast.2021.e85

The in-vitro meat is a novel concept in food biotechnology comprising field of tissue engineering and cellular agriculture. It involves production of edible biomass by in-vitro culture of stem cells harvested from the muscle of live animals by self-organizing or scaffolding methodology. It is considered as efficient, environmental friendly, better ensuring public safety and nutritional security, as well as ethical way of producing meat. Source of stem cells, media ingredients, supply of large size bioreactors, ...
REVIEW

Jul 31, 2021

Effect of reducing sodium chloride based on the sensory properties of meat products and the improvement strategies employed: a review

Tae-Kyung Kim, Hae In Yong, Samooel Jung, Hyun-Wook Kim, Yun-Sang Choi

J Anim Sci Technol 2021;63(4):725-739.
https://doi.org/10.5187/jast.2021.e74

Many consumers are concerned about the high levels of salt intake owing to the accompanied risk of chronic diseases. Due to this dietary concern, the food industry has recommended the reduction of salt content in many products. However, the addition of salt to meat products improves their quality and sensory properties, including saltiness, color, juiciness, and texture. Because quality deteriorations could induce decreased sensory scores owing to salt reductions, the challenges involved in improving the quality of reduced-salt meat products ha...
RESEARCH ARTICLE

Jul 31, 2021

Genetic relationship of age at first calving with conformation traits and calving interval in Hanwoo cows

SeungGyu Shin, JungJae Lee, ChangHee Do

J Anim Sci Technol 2021;63(4):740-750.
https://doi.org/10.5187/jast.2021.e73

This study was performed to investigate genetic relationship of age at first calving (AFC) with body development and reproduction capacity in female Hanwoo. The data sets of 52,299 reproduction records of 19,566 heads calved from 2011 to 2019 and conformation records of 19565 heads born from 1997 to 2017 were analyzed by separating them based on age at first calving. In the analysis, conformation traits included the body condition score (BCS), height (HT), body width (BW), hip bone length (HL), hip bone width (HW), and final score (FS). The her...
RESEARCH ARTICLE

Jul 31, 2021

A retroviral insertion in the tyrosinase (TYR) gene is associated with the recessive white plumage color in the Yeonsan Ogye chicken

Eunjin Cho, Minjun Kim, Prabuddha Manjula, Sung Hyun Cho, Dongwon Seo, Seung-Sook Lee, Jun Heon Lee

J Anim Sci Technol 2021;63(4):751-758.
https://doi.org/10.5187/jast.2021.e71

The recessive white (locus c) phenotype observed in chickens is associated with three alleles (recessive white c, albino c^a, and red-eyed white c^re) and causative mutations in the tyrosinase (TYR) gene. The recessive white mutation (c) inhibits the transcription of TYR exon 5 due to a retroviral sequence insertion in intron 4. In this study, we genotyped and sequenced the insertion in TYR ...
RESEARCH ARTICLE

Jul 31, 2021

Analysis of seasonal effect on Korean native cattle (Hanwoo) birth weight

Kwanghyun Cho, Yirim Song, Joon-Mo Yeo, Jin-Ki Park, Dong-Wook Kim, Seung-Hee Roh, Pilnam Seong, Won-Young Lee

J Anim Sci Technol 2021;63(4):759-765.
https://doi.org/10.5187/jast.2021.e72

Recently, summer temperatures have frequently been abnormal in Korea owing to global warming. In summer, a decrease in feed intake rate and biological activity were observed in Hanwoo (Korean Native Cattle), leading to lower production rates in the industry. However, the precise scale of damage was not reported as with other animals of economic value. This study was conducted to investigate the effects of birth season on birth weight in Hanwoo. Data were collected from 100 local breeding farms from 2016 to 2019. A total of 41,081 Hanwoo calves ...
RESEARCH ARTICLE

Jul 31, 2021

Bezafibrate prevents aging in in vitro-matured porcine oocytes

Ju-Yeon Kim, Dongjie Zhou, Xiang-Shun Cui

J Anim Sci Technol 2021;63(4):766-777.
https://doi.org/10.5187/jast.2021.e64

Bezafibrate, a fibrate drug used as a lipid-lowering agent to treat hyperlipidemia, is a pan-agonist of peroxisome proliferator-activated receptor alpha. It can enhance mitochondrial fatty acid oxidation, oxidative phosphorylation, and mitochondrial biogenesis. After ovulation, oocytes may get arrested at the metaphase II (MII) stage until fertilization beyond optimal timing, which is termed as post-ovulatory aging. Post-ovulatory aging is a disease that degrades DNA, mitochondria, and oxidative system, and has a negative impact on embryo devel...
RESEARCH ARTICLE

Jul 31, 2021

Dietary inclusion of glucose oxidase supplementation to corn-wheat-based diet enhance growth performance, nutrient digestibility, blood profile of lactating sows

Shanmugam Sureshkumar, Yan Jie Liu, Ning Bo Chen, In Ho Kim

J Anim Sci Technol 2021;63(4):778-789.
https://doi.org/10.5187/jast.2021.e66

The objective of this study is to investigate the effect of dietary glucose oxidase (GOx) supplementation on the reproductive performance, litter performance, total tract digestibility, and blood profile of lactating sows fed corn-wheat-based diet. A total of twenty multiparous sows (Landrace × Yorkshire) were allocated into one of four treatments with five replicates per treatment. The dietary treatments were as follows: CON (Basal diet), GO1 (basal diet + 200 U GOx/kg), GO2 (basal diet + 300 U GOx/kg), GO3 (basal diet + 400 U Gox/kg). Diet...
RESEARCH ARTICLE

Jul 31, 2021

Evaluation of pig behavior changes related to temperature, relative humidity, volatile organic compounds, and illuminance

Yong Ju Kim, Hyeun Bum Kim, Chang Gyu Lee, Min Seok Jo, Beom Jun Park, Young Bin Go, Se Yeon Chang, Jae Woo An, Han Jin Oh, Ji Hwan Lee, Sang In Lee, Min Ho Song, Jin Ho Cho

J Anim Sci Technol 2021;63(4):790-798.
https://doi.org/10.5187/jast.2021.e89

The objective of this study was evaluation of pig behavior changes related to temperature, relative humidity, volatile organic compounds (VOCs), and illuminance. A total of 24 growing pigs ([Yorkshire × Landrace] × Duroc) were used in the experiment. A sensor was installed at a height of 0.5 m in the center of the pig house. In experiment 1, temperature was changed every four days to 18°C (T1), 22°C (T2), 26°C (T3), and then 30°C (T4). In experiment 2, relative humidity was adjusted to 45% (low humidity [LH]), 60% (middle humidity [MH]), ...
RESEARCH ARTICLE

Jul 31, 2021

Effect of a fall cut on dry matter yield, nutritive value, and stand persistence of alfalfa

Iryna McDonald, Doohong Min, Rudra Baral

J Anim Sci Technol 2021;63(4):799-814.
https://doi.org/10.5187/jast.2021.e65

Information is lacking about the effect of date of a fall cut of alfalfa (Medicago sativa L.) on dry matter yield (DMY), forage nutritive value, and stands persistence. The objective of this study was to determine the effect of timing of a fall cut on DMY, forage nutritive value and stand persistence of three alfalfa varieties: low-lignin Hi–Gest 360, Roundup Ready Tonica, and conventional Gunner in Northeastern Kansas in the United States. The field study was carried out by splitting plot in randomized complete block design ...
RESEARCH ARTICLE

Jul 31, 2021

Effects of stocking density and dietary vitamin C on performance, meat quality, intestinal permeability, and stress indicators in broiler chickens

Dong Gwon Yu, Nyun Namgung, Jong Hyuk Kim, Seung Yeon Won, Won Jun Choi, Dong Yong Kil

J Anim Sci Technol 2021;63(4):815-826.
https://doi.org/10.5187/jast.2021.e77

The objective of the current study was to investigate the effects of stocking density (SD) and dietary supplementation of vitamin C on growth performance, meat quality, intestinal permeability, and stress indicators in broiler chickens. The study was conducted using a completely randomized design with a 2 × 2 factorial arrangement consisting of 2 different SD and 2 supplemental levels of dietary vitamin C. A total of 1,368 Ross 308 broiler chickens of 21 days of age with similar body weights (BW) were randomly allotted to 1 of 4 treatments w...
RESEARCH ARTICLE

Jul 31, 2021

Prediction of calcium and phosphorus requirements for pigs in different bodyweight ranges using a meta-analysis

Se Min Jeon, Soo Jin Sa, Sang Deok Lee, Yo Han Choi, SuHyup Lee, Joseph Moturi, Jun Yong Mun, Tae Gyun Kim, Sang Hun Ha, Abdolreza Hosseindoust, Jin Soo Kim

J Anim Sci Technol 2021;63(4):827-840.
https://doi.org/10.5187/jast.2021.e70

Several studies have focused on Ca and P requirements for pigs. These requirements are estimated from their retention and bone formation. However, modern pig breeds have different responses to dietary Ca and P than traditional breeds, and their requirements are expected to change on an annual basis. Besides individual Ca and P needs, the Ca to P ratio (Ca/P) is an important factor in determining requirements. This study aimed to implement a linear and quadratic regression analysis to estimate Ca and P requirements based on average daily gain (A...
RESEARCH ARTICLE

Jul 31, 2021

Kimchi cabbage (Brassica rapa L.) by-products treated with calcium oxide and alkaline hydrogen peroxide as feed ingredient for Holstein steers

A-Rang Son, Seon-Ho Kim, Raniel A. Valencia, Chang-Dae Jeong, Mahfuzul Islam, Chul-Ju Yang, Sang-Suk Lee

J Anim Sci Technol 2021;63(4):841-853.
https://doi.org/10.5187/jast.2021.e75

This study aimed to investigate the effects of Kimchi cabbage by-products either treated or untreated with calcium oxide (CaO) and alkaline hydrogen peroxide (AHP) as substitutional ingredient of total mixed ration (TMR) on in vitro fermentation, in situ disappearance and growth performance of Holstein steers. Cannulated Holstein (600 ± 47 kg) was used for both the in vitro and in situ experiments. The treatments used were TMR only (CON), TMR + 30% Kimchi cabbage by-products...
RESEARCH ARTICLE

Jul 31, 2021

MicroRNA expression profiling during the suckling-to-weaning transition in pigs

Hyun Jun Jang, Sang In Lee

J Anim Sci Technol 2021;63(4):854-863.
https://doi.org/10.5187/jast.2021.e69

Weaning induces physiological changes in intestinal development that affect pigs’ growth performance and susceptibility to disease. As a posttranscriptional regulator, microRNAs (miRNAs) regulate cellular homeostasis during intestinal development. We performed small RNA expression profiling in the small intestine of piglets before weaning (BW), 1 week after weaning (1W), and 2 weeks after weaning (2W) to identify weaning-associated differentially expressed miRNAs. We identified 38 differentially expressed miRNAs with varying expression levels...
RESEARCH ARTICLE

Jul 31, 2021

The prevalence of causative agents of calf diarrhea in Korean native calves

Jeong-Byoung Chae, Hak-Jong Choi, Yeon-su Oh, Bae-Keun Park, Do-Hyeon Yu, Joon-Seok Chae, Kyoung-Seong Choi, Jun-Gu Kang, Hyeon-Cheol Kim, Jinho Park

J Anim Sci Technol 2021;63(4):864-871.
https://doi.org/10.5187/jast.2021.e63

Infectious calf diarrhea is one of the most significant diseases of neonatal calves. This study is conducted to identify the prevalence of pathogens in calf diarrhea for 2 years. A total of 544 feces samples from Korean native beef calves were obtained to investigate selected seven pathogens causing calf diarrhea: bovine rotavirus, bovine coronavirus, Cryptosporidium parvum, bovine viral diarrhea virus, Eimeria species, Escherichia coli K99, and Salmonella species. The presence...
RESEARCH ARTICLE

Jul 31, 2021

Evaluation of heat stress responses in Holstein and Jersey cows by analyzing physiological characteristics and milk production in Korea

Dong-Hyun Lim, Tae-Il Kim, Sung-Min Park, Kwang-Seok Ki, Younghoon Kim

J Anim Sci Technol 2021;63(4):872-883.
https://doi.org/10.5187/jast.2021.e62

We evaluated the effects of heat stress on physiological responses and milk production in Holstein and Jersey cows reared in Korea. The mean average temperature-humidity index (THI) increased significantly from May to August and then decreased until October. The mean average rectal temperature (RT) was increased in Holstein cows compared with Jersey cows, as the THI values increased from 61 to 85. The average respiratory rate (RR) was increased in Jersey cows compared with Holstein cows when the THI value increased from 61 to 85. The average su...
RESEARCH ARTICLE

Jul 31, 2021

Changes in the quality of pork loin after short-term (ten-day) storage in a supercooling refrigerator

Chun Ho Park, Hye Sook Park, Kyungah Yoon, Jeehwan Choe

J Anim Sci Technol 2021;63(4):884-891.
https://doi.org/10.5187/jast.2021.e67

The study aimed to evaluate pork loin quality after short-term (ten-day) storage in a supercooling refrigerator. Pork loin samples were stored for 10 days in a traditional refrigerator (control) and a commercially available supercooling refrigerator (SC). Pork quality measurements included meat pH, meat color, water holding capacity (drip loss and cooking loss), tenderness (hardness), and a sensory evaluation. Temperature changes of 0.45 ± 0.2°C and 0.02 ± 0.25°C occurred in the control and the SC, respectively, during 10 days of storage....
RESEARCH ARTICLE

Jul 31, 2021

Effect of air cleaner on stress hormones of pig and pork quality

Yeon-Ha Kim, Ki-Youn Kim

J Anim Sci Technol 2021;63(4):892-903.
https://doi.org/10.5187/jast.2021.e68

The objective of this study is to investigate effect of air cleaner operated during pig breeding period on stress hormones of pigs and their pork quality. The stress hormones (cortisol, epinephrine and norepinephrine) in blood sample of pigs reared in the housing rooms with or without air cleaner have been measured according to a pig’s rearing stage: 0 day (farrowing), 21st day (farrowing–weaning), 70th day (weaning–nursery), 140th day (nursery–growing), and 180th day (growing–fattening). The comparison of pork quality according to th...
RESEARCH ARTICLE

Jul 31, 2021

Effects of cooling systems on physiological responses and intestinal microflora in early gestating sows exposed to high-temperature stress

Yongdae Jeong, Yohan Choi, Doowan Kim, Yejin Min, Eunsuk Cho, Joeun Kim

J Anim Sci Technol 2021;63(4):904-918.
https://doi.org/10.5187/jast.2021.e79

This study was conducted to investigate the effect of cooling systems on reproductive performance, body temperature, blood metabolites, and the intestinal microbiome in early gestating sows exposed to high ambient temperature. In total, 39 pregnant sows (Landrace × Yorkshire; 2 parities) were randomly assigned to and maintained in the following three treatment groups (13 sows per group) over days 0 to 35 of pregnancy: (i) air cooling (AC; 26.87 ± 1.23°C), (ii) water-drip cooling (WC; 28.81 ± 0.91°C), and (iii) a lack of cooling with heat ...
RESEARCH ARTICLE

Jul 31, 2021

Effect of palmitoleic acid on the differentiation of bovine skeletal muscle satellite cells

Junfang Zhang, Xiangzi Li, Xin Jin, Jia Yu, Lin Tang, Ying Wang, Bin Sun, Jianfu Sun, Kim Margarette Corpuz Nogoy, Qiang Li, Seong-Ho Choi

J Anim Sci Technol 2021;63(4):919-933.
https://doi.org/10.5187/jast.2021.e78

We hypothesized that the unsaturated fatty acid palmitoleic acid (POA) could promote the expression of adipogenic/lipogenic genes in bovine skeletal muscle satellite cells (BSCs). The BSCs were cultured in a growth medium containing 10% fetal bovine serum. When the cells reached 80%–90% confluence, we used the differentiation medium with 5% horse serum for differentiation for 96 h. The differentiation medium contained 50 µM, 100 µM and 200 µM POA. Control BSC were cultured only in differentiation media. Compared with the control BSC, the P...
RESEARCH ARTICLE

Jul 31, 2021

Effect of ciglitazone on adipogenic transdifferentiation of bovine skeletal muscle satellite cells

Junfang Zhang, Xiangzi Li, Kim Margarette Corpuz Nogoy, Jia Yu, Enze Wang, Lin Tang, Ying Wang, Bin Sun, Yan Yan, Qiang Li, Seong-Ho Choi

J Anim Sci Technol 2021;63(4):934-953.
https://doi.org/10.5187/jast.2021.e87

Ciglitazone is a member of the thiazolidinedione family, and specifically binds to peroxisome proliferator-activated receptor-γ (PPARγ), thereby promoting adipocyte differentiation. We hypothesized that ciglitazone as a PPARγ ligand in the absence of an adipocyte differentiation cocktail would increase adiponectin and adipogenic gene expression in bovine satellite cells (BSC). Muscle-derived BSCs were isolated from six, 18-month-old Yanbian Yellow Cattle. The BSC were cultured for 96 h in di...

CURRENT ISSUE: Jul 2021, Vol. 63 , No. 4

REVIEW Principal protocols for the processing of cultured meat Seung Yun Lee, Hea Jin Kang, Da Young Lee, Ji Hyeop Kang, Sivasubramanian Ramani, Sungkwon Park, Sun Jin Hur J Anim Sci Technol 2021;63(4):673-680. https://doi.org/10.5187/jast.2021.e40 HTML PDF PubReader	REVIEW Technical requirements for cultured meat production: a review Sivasubramanian Ramani, Sunjin Hur, Jungsun Kang, Chang-Kyu Lee, Cheorun Jo, Woosang Kim, Changjun Cho, Bosung Kim, Deunsol Ko, Sungkwon Park J Anim Sci Technol 2021;63(4):681-692. https://doi.org/10.5187/jast.2021.e45 HTML PDF PubReader
REVIEW In-vitro meat: a promising solution for sustainability of meat sector Pavan Kumar, Neelesh Sharma, Shubham Sharma, Nitin Mehta, Akhilesh Kumar Verma, S Chemmalar, Awis Qurni Sazili J Anim Sci Technol 2021;63(4):693-724. https://doi.org/10.5187/jast.2021.e85 HTML PDF PubReader	REVIEW Effect of reducing sodium chloride based on the sensory properties of meat products and the improvement strategies employed: a review Tae-Kyung Kim, Hae In Yong, Samooel Jung, Hyun-Wook Kim, Yun-Sang Choi J Anim Sci Technol 2021;63(4):725-739. https://doi.org/10.5187/jast.2021.e74 HTML PDF PubReader
RESEARCH ARTICLE Genetic relationship of age at first calving with conformation traits and calving interval in Hanwoo cows SeungGyu Shin, JungJae Lee, ChangHee Do J Anim Sci Technol 2021;63(4):740-750. https://doi.org/10.5187/jast.2021.e73 HTML PDF PubReader	RESEARCH ARTICLE A retroviral insertion in the tyrosinase (TYR) gene is associated with the recessive white plumage color in the Yeonsan Ogye chicken Eunjin Cho, Minjun Kim, Prabuddha Manjula, Sung Hyun Cho, Dongwon Seo, Seung-Sook Lee, Jun Heon Lee J Anim Sci Technol 2021;63(4):751-758. https://doi.org/10.5187/jast.2021.e71 HTML PDF PubReader
RESEARCH ARTICLE Analysis of seasonal effect on Korean native cattle (Hanwoo) birth weight Kwanghyun Cho, Yirim Song, Joon-Mo Yeo, Jin-Ki Park, Dong-Wook Kim, Seung-Hee Roh, Pilnam Seong, Won-Young Lee J Anim Sci Technol 2021;63(4):759-765. https://doi.org/10.5187/jast.2021.e72 HTML PDF PubReader	RESEARCH ARTICLE Bezafibrate prevents aging in in vitro-matured porcine oocytes Ju-Yeon Kim, Dongjie Zhou, Xiang-Shun Cui J Anim Sci Technol 2021;63(4):766-777. https://doi.org/10.5187/jast.2021.e64 HTML PDF PubReader
RESEARCH ARTICLE Dietary inclusion of glucose oxidase supplementation to corn-wheat-based diet enhance growth performance, nutrient digestibility, blood profile of lactating sows Shanmugam Sureshkumar, Yan Jie Liu, Ning Bo Chen, In Ho Kim J Anim Sci Technol 2021;63(4):778-789. https://doi.org/10.5187/jast.2021.e66 HTML PDF PubReader	RESEARCH ARTICLE Evaluation of pig behavior changes related to temperature, relative humidity, volatile organic compounds, and illuminance Yong Ju Kim, Hyeun Bum Kim, Chang Gyu Lee, Min Seok Jo, Beom Jun Park, Young Bin Go, Se Yeon Chang, Jae Woo An, Han Jin Oh, Ji Hwan Lee, Sang In Lee, Min Ho Song, Jin Ho Cho J Anim Sci Technol 2021;63(4):790-798. https://doi.org/10.5187/jast.2021.e89 HTML PDF PubReader
RESEARCH ARTICLE Effect of a fall cut on dry matter yield, nutritive value, and stand persistence of alfalfa Iryna McDonald, Doohong Min, Rudra Baral J Anim Sci Technol 2021;63(4):799-814. https://doi.org/10.5187/jast.2021.e65 HTML PDF PubReader	RESEARCH ARTICLE Effects of stocking density and dietary vitamin C on performance, meat quality, intestinal permeability, and stress indicators in broiler chickens Dong Gwon Yu, Nyun Namgung, Jong Hyuk Kim, Seung Yeon Won, Won Jun Choi, Dong Yong Kil J Anim Sci Technol 2021;63(4):815-826. https://doi.org/10.5187/jast.2021.e77 HTML PDF PubReader
RESEARCH ARTICLE Prediction of calcium and phosphorus requirements for pigs in different bodyweight ranges using a meta-analysis Se Min Jeon, Soo Jin Sa, Sang Deok Lee, Yo Han Choi, SuHyup Lee, Joseph Moturi, Jun Yong Mun, Tae Gyun Kim, Sang Hun Ha, Abdolreza Hosseindoust, Jin Soo Kim J Anim Sci Technol 2021;63(4):827-840. https://doi.org/10.5187/jast.2021.e70 HTML PDF PubReader	RESEARCH ARTICLE Kimchi cabbage (Brassica rapa L.) by-products treated with calcium oxide and alkaline hydrogen peroxide as feed ingredient for Holstein steers A-Rang Son, Seon-Ho Kim, Raniel A. Valencia, Chang-Dae Jeong, Mahfuzul Islam, Chul-Ju Yang, Sang-Suk Lee J Anim Sci Technol 2021;63(4):841-853. https://doi.org/10.5187/jast.2021.e75 HTML PDF PubReader
RESEARCH ARTICLE MicroRNA expression profiling during the suckling-to-weaning transition in pigs Hyun Jun Jang, Sang In Lee J Anim Sci Technol 2021;63(4):854-863. https://doi.org/10.5187/jast.2021.e69 HTML PDF PubReader	RESEARCH ARTICLE The prevalence of causative agents of calf diarrhea in Korean native calves Jeong-Byoung Chae, Hak-Jong Choi, Yeon-su Oh, Bae-Keun Park, Do-Hyeon Yu, Joon-Seok Chae, Kyoung-Seong Choi, Jun-Gu Kang, Hyeon-Cheol Kim, Jinho Park J Anim Sci Technol 2021;63(4):864-871. https://doi.org/10.5187/jast.2021.e63 HTML PDF PubReader
RESEARCH ARTICLE Evaluation of heat stress responses in Holstein and Jersey cows by analyzing physiological characteristics and milk production in Korea Dong-Hyun Lim, Tae-Il Kim, Sung-Min Park, Kwang-Seok Ki, Younghoon Kim J Anim Sci Technol 2021;63(4):872-883. https://doi.org/10.5187/jast.2021.e62 HTML PDF PubReader	RESEARCH ARTICLE Changes in the quality of pork loin after short-term (ten-day) storage in a supercooling refrigerator Chun Ho Park, Hye Sook Park, Kyungah Yoon, Jeehwan Choe J Anim Sci Technol 2021;63(4):884-891. https://doi.org/10.5187/jast.2021.e67 HTML PDF PubReader
RESEARCH ARTICLE Effect of air cleaner on stress hormones of pig and pork quality Yeon-Ha Kim, Ki-Youn Kim J Anim Sci Technol 2021;63(4):892-903. https://doi.org/10.5187/jast.2021.e68 HTML PDF PubReader	RESEARCH ARTICLE Effects of cooling systems on physiological responses and intestinal microflora in early gestating sows exposed to high-temperature stress Yongdae Jeong, Yohan Choi, Doowan Kim, Yejin Min, Eunsuk Cho, Joeun Kim J Anim Sci Technol 2021;63(4):904-918. https://doi.org/10.5187/jast.2021.e79 HTML PDF PubReader
RESEARCH ARTICLE Effect of palmitoleic acid on the differentiation of bovine skeletal muscle satellite cells Junfang Zhang, Xiangzi Li, Xin Jin, Jia Yu, Lin Tang, Ying Wang, Bin Sun, Jianfu Sun, Kim Margarette Corpuz Nogoy, Qiang Li, Seong-Ho Choi J Anim Sci Technol 2021;63(4):919-933. https://doi.org/10.5187/jast.2021.e78 HTML PDF PubReader	RESEARCH ARTICLE Effect of ciglitazone on adipogenic transdifferentiation of bovine skeletal muscle satellite cells Junfang Zhang, Xiangzi Li, Kim Margarette Corpuz Nogoy, Jia Yu, Enze Wang, Lin Tang, Ying Wang, Bin Sun, Yan Yan, Qiang Li, Seong-Ho Choi J Anim Sci Technol 2021;63(4):934-953. https://doi.org/10.5187/jast.2021.e87 HTML PDF PubReader

AHEAD OF PRINT

Article Development and Evaluation of Probiotic Delivery Systems using the Rennet-induced Gelation of Milk Proteins Ho-Kyung Ha, Ji-Young Hong, Istifiani Lola Ayu, Mee-Ryung Lee, Won-Jae Lee J Anim Sci Technol 2021 [published online ahead of print: Jul 26, 2021] https://doi.org/10.5187/jast.2021.e92 HTML PDF PubReader	Article Effect of flaking on the digestibility of corn in ruminants Hamin Kang, Mingyung Lee, Seoyoung Jeon, Sang Moon Lee, Ju Hwan Lee, Seongwon Seo J Anim Sci Technol 2021 [published online ahead of print: Jul 26, 2021] https://doi.org/10.5187/jast.2021.e91 HTML PDF PubReader
Article DNA damage repair is suppressed in porcine aged oocytes Tao Lin, Ling Sun, Jae Lee, So Kim, Dong Jin J Anim Sci Technol 2021 [published online ahead of print: Jul 26, 2021] https://doi.org/10.5187/jast.2021.e90 HTML PDF PubReader	Article Feeding Strategies with Total Mixed Ration and Concentrate may Improve Feed Intake and Carcass Quality of Hanwoo Steers Soohyung LEE, Sang Moo LEE, Jaehun LEE, Eun Joong KIM J Anim Sci Technol 2021 [published online ahead of print: Jul 26, 2021] https://doi.org/10.5187/jast.2021.e88 HTML PDF PubReader
Article Association of the ubiquitin specific peptidase 9X-linked and Afadin-6 Expression Patterns with Sexual Maturation in Boar Testis Sun-Young Baek, Seung-Hoon Lee, Soojin Sa, Youngshin Kim, Joon-Ki Hong, Eunseok Cho, Seungmin Ha, Kyungwoon Kim, Hakjae Chung J Anim Sci Technol 2021 [published online ahead of print: Jul 26, 2021] https://doi.org/10.5187/jast.2021.e86 HTML PDF PubReader	Article Effect of fattening period on growth performance, carcass characteristics, and economic traits of Holstein steers Sung Il Kim, Sungkwon Park, Jung Hwan Myung, Young Min Jo, Chang Bon choi, Keun Ki Jung J Anim Sci Technol 2021 [published online ahead of print: Jul 26, 2021] https://doi.org/10.5187/jast.2021.e84 HTML PDF PubReader
Article Dietary spray-dried plasma supplementation in late-gestation and lactation enhanced productive performance and immune responses of lactating sows and their litters Kwangwook Kim, Byeonghyeon Kim, Hyunjin Kyoung, Yanhong Liu, Joy Campbell, Minho Song, Peng Ji J Anim Sci Technol 2021 [published online ahead of print: Jul 26, 2021] https://doi.org/10.5187/jast.2021.e83 HTML PDF PubReader	Article Improved immune-enhancing activity of egg white protein ovotransferrin after enzyme hydrolysis Jae Hoon Lee, Hyeon Joong Kim, Dong Uk Ahn, Hyun-Dong Paik J Anim Sci Technol 2021 [published online ahead of print: Jul 26, 2021] https://doi.org/10.5187/jast.2021.e82 HTML PDF PubReader
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