Zobrazeno 1 - 10
of 102
pro vyhledávání: '"Kwang-Seok Ki"'
Publikováno v:
Journal of Animal Science and Technology, Vol 65, Iss 1, Pp 197-208 (2023)
The objective of this study was to investigate the effects of a traditional dry period (60 d) versus a no dry period (0 d) on the milk production, physiological response, and metabolic status of dairy cows exposed to heat stress during the transition
Externí odkaz:
https://doaj.org/article/61f91efbdb2145ac9143cd7aa58239d8
Autor:
Dong-Hyun Lim, Man-Hye Han, Kwang-Seok Ki, Tae-Il Kim, Sung-Min Park, Dong-Hyeon Kim, Younghoon Kim
Publikováno v:
Journal of Animal Science and Technology, Vol 63, Iss 6, Pp 1433-1442 (2021)
In this study, Saccharomyces cerevisiae culture fluid (SCCF) has been added to a diet of lactating dairy cows to attempt to improve the ruminal fermentation and potentially increase the dry matter intake (DMI) and milk yield. This study was conduc
Externí odkaz:
https://doaj.org/article/b0d87c5f52d74162984844c589fb67fe
Publikováno v:
Animal Bioscience, Vol 34, Iss 10, Pp 1623-1631 (2021)
Objective This study aimed to validate and evaluate the dry matter (DM) intake prediction model of the Korean feeding standards for dairy cattle (KFSD). Methods The KFSD DM intake (DMI) model was developed using a database containing the data from th
Externí odkaz:
https://doaj.org/article/a3b95662bb5644478620ecccac09d376
Publikováno v:
Journal of Animal Science and Technology, Vol 63, Iss 4, Pp 872-883 (2021)
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 unt
Externí odkaz:
https://doaj.org/article/71f206782e5745c2a93115e92a0c60c3
Publikováno v:
Journal of Animal Science and Technology, Vol 63, Iss 3, Pp 626-639 (2021)
The purpose of this study was to determine the effects of photoperiod and light intensity on milk production, milk composition, hormones levels and blood metabolites indices of Korean Holstein dairy cows in automatic milking system (AMS). A total
Externí odkaz:
https://doaj.org/article/609c44220e2d4b62ae777d9664d49895
Publikováno v:
Animal Bioscience, Vol 34, Iss 4, Pp 567-574 (2021)
Objective In this study we investigated the effect of seasonal thermal stress on milk production and milk compositions between Holstein and Jersey dairy cows under the temperate-climate in Korea. Methods A total of 9 Holstein lactating dairy cows (2.
Externí odkaz:
https://doaj.org/article/46fd010997b8427c8695d6eaa48af8a3
A comparative study on milk composition of Jersey and Holstein dairy cows during the early lactation
Autor:
Dong-Hyun Lim, Vijayakumar Mayakrishnan, Hyun-Jeong Lee, Kwang-Seok Ki, Tae-Il Kim, Younghoon Kim
Publikováno v:
Journal of Animal Science and Technology, Vol 62, Iss 4, Pp 565-576 (2020)
Recently, Jersey cattle was introduced and produced by embryo transfer to Korea. This study was conducted to investigate the differences of milk compositions between Jersey and Holstein cows and the relationship between days in milk (DIM) and milk
Externí odkaz:
https://doaj.org/article/6f173068f7864969a819ae4c6f9e78fe
Autor:
Tae-Il Kim, Tae-Gyun Kim, Dong-Hyun Lim, Sang-Bum Kim, Seong-Min Park, Hyun-Joo Lim, Hyun-Jong Kim, Kwang-Seok Ki, Eung-Gi Kwon, Young-Jun Kim, Vijayakumar Mayakrishnan
Publikováno v:
Asian-Australasian Journal of Animal Sciences, Vol 32, Iss 2, Pp 257-264 (2019)
Objective Dairy cattle nutrient requirement systems acknowledge amino acid (AAs) requirements in aggregate as metabolizable protein (MP) and assume fixed efficiencies of MP used for milk protein. Regulation of mammary protein synthesis may be associa
Externí odkaz:
https://doaj.org/article/37db6492af4343e295fb2f19756ea664
Autor:
Tae-Il Kim, Dong-Hyun Lim, Hyun-Jeong Lee, Seong-Min Park, Yoon-Jeong Kim, Hee-Chul Choi, Jong-Ho Park, Sam-Churl Kim, Kwang-Seok Ki, Vijayakumar Mayakrishnan
Publikováno v:
Applied Sciences, Vol 10, Iss 21, p 7442 (2020)
This study aimed to determine the effects of replacing corn with hydroponically sprouted barley (HSB) in Holstein heifer feed on growth performance and blood metabolites. For this purpose, the barley was prepared with hydroponic sprouting under optim
Externí odkaz:
https://doaj.org/article/8498c5cf6c16434697f7c892fda533ed
Autor:
Hyun-Joo Lim, Ho-Beak Yoon, Harim Im, Jihoo Park, Yong-il Cho, Yeon-Seop Jeong, Kwang-Seok Ki, Seok-Ki Im
Publikováno v:
Journal of Animal Reproduction and Biotechnology, Vol 30, Iss 1, Pp 59-64 (2015)
Intensive genetic selection has resulted in modern dairy cow with very high milk yields but reduced fertility, due mainly to an increase in reproductive disorders. The study was conducted to estimate the proportion of reproductive disorders among dai
Externí odkaz:
https://doaj.org/article/cfa62179a7aa467cb6b2647cf30dbef4