Estrus synchronization and artificial insemination in Korean black goat (Capra hircus coreanae) using frozen-thawed semen
Presently, there is an increased demand for livestock products all over the world which has led to more devotion on improving livestock population. Although goats have been bred for a long time in Korea, but there is not much research condu...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Korean Society of Animal Sciences and Technology
2021-01-01
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| Series: | Journal of Animal Science and Technology |
| Subjects: | |
| Online Access: | http://www.ejast.org/archive/view_article?pid=jast-63-1-36 |
| _version_ | 1818941348842045440 |
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| author | Kwan-Woo Kim Jinwook Lee Keun Jung Kim Eun-Do Lee Sung Woo Kim Sung-Soo Lee Sang-Hoon Lee |
| author_facet | Kwan-Woo Kim Jinwook Lee Keun Jung Kim Eun-Do Lee Sung Woo Kim Sung-Soo Lee Sang-Hoon Lee |
| author_sort | Kwan-Woo Kim |
| collection | DOAJ |
| description | Presently, there is an increased demand for livestock products all over the world
which has led to more devotion on improving livestock population. Although goats
have been bred for a long time in Korea, but there is not much research
conducted on traditional Korean black goat (Capra hircus
coreanae) compared to other livestock populations. Mutton
consumption has been dramatically changing from medicinal use to edible meat and
this trend directs the black goat populations declining and also mutton import
quantities are increasing consistently. The present study introduced a new
estrus synchronizing technique with subsequent artificial insemination (AI) for
Korean black goats to enable crossbreeding with non-native breeds for the small
or subsistent farmers. Our data highlighted that, the percentage of motile sperm
from the electro-ejaculated samples declined significantly after freezing and
melting. In addition, the sperm motility significantly declined with regard to
sperm incubation period (0, 5, 60, and 120 min at 37°C) and was
negatively correlated (64.2 ± 7.9%, 63.3 ± 5.8%, 49.9 ±
6.3%, and 35.9 ± 7.6%, respectively) in frozen-thawed sperm samples.
Moreover, the E2 levels were unchanged even 24 h after controlled internal drug
releas (CIDR) withdrawal. But, 48 h and 72 h after CIDR removal, E2 levels
increased significantly. These data helps us to consider the two time points for
AI; CIDR removal after 24 h, at which E2 decreases, and after 48 h, as the time
at which progesterone increases. Additionally, the AI after 48 h of CIDR removal
group exhibited significantly higher pregnancy and parturition rates (42.9%)
compared to AI after 24 h after CIDR removal 28.6% group. In conclusion, these
studies will propose an optimal estrus synchronisation process with subsequent
timing of AI and also will promote the Korean black goat breeding industry. |
| first_indexed | 2024-12-20T06:54:07Z |
| format | Article |
| id | doaj.art-f9cbef1959844921b532742c9317f296 |
| institution | Directory Open Access Journal |
| issn | 2672-0191 2055-0391 |
| language | English |
| last_indexed | 2024-12-20T06:54:07Z |
| publishDate | 2021-01-01 |
| publisher | Korean Society of Animal Sciences and Technology |
| record_format | Article |
| series | Journal of Animal Science and Technology |
| spelling | doaj.art-f9cbef1959844921b532742c9317f2962022-12-21T19:49:25ZengKorean Society of Animal Sciences and TechnologyJournal of Animal Science and Technology2672-01912055-03912021-01-01631364510.5187/jast.2021.e10jast-63-1-36Estrus synchronization and artificial insemination in Korean black goat (Capra hircus coreanae) using frozen-thawed semenKwan-Woo Kim0Jinwook Lee1Keun Jung Kim2Eun-Do Lee3Sung Woo Kim4Sung-Soo Lee5Sang-Hoon Lee6Animal Genetic Resources Research Center, National Institute of Animal Science, Rural Development Administration, Animal Genetic Resources Research Center, National Institute of Animal Science, Rural Development Administration, Institute of Chungnam Livestock Research, Animal Genetic Resources Research Center, National Institute of Animal Science, Rural Development Administration, Animal Genetic Resources Research Center, National Institute of Animal Science, Rural Development Administration, Animal Genetic Resources Research Center, National Institute of Animal Science, Rural Development Administration, Animal Genetic Resources Research Center, National Institute of Animal Science, Rural Development Administration, Presently, there is an increased demand for livestock products all over the world which has led to more devotion on improving livestock population. Although goats have been bred for a long time in Korea, but there is not much research conducted on traditional Korean black goat (Capra hircus coreanae) compared to other livestock populations. Mutton consumption has been dramatically changing from medicinal use to edible meat and this trend directs the black goat populations declining and also mutton import quantities are increasing consistently. The present study introduced a new estrus synchronizing technique with subsequent artificial insemination (AI) for Korean black goats to enable crossbreeding with non-native breeds for the small or subsistent farmers. Our data highlighted that, the percentage of motile sperm from the electro-ejaculated samples declined significantly after freezing and melting. In addition, the sperm motility significantly declined with regard to sperm incubation period (0, 5, 60, and 120 min at 37°C) and was negatively correlated (64.2 ± 7.9%, 63.3 ± 5.8%, 49.9 ± 6.3%, and 35.9 ± 7.6%, respectively) in frozen-thawed sperm samples. Moreover, the E2 levels were unchanged even 24 h after controlled internal drug releas (CIDR) withdrawal. But, 48 h and 72 h after CIDR removal, E2 levels increased significantly. These data helps us to consider the two time points for AI; CIDR removal after 24 h, at which E2 decreases, and after 48 h, as the time at which progesterone increases. Additionally, the AI after 48 h of CIDR removal group exhibited significantly higher pregnancy and parturition rates (42.9%) compared to AI after 24 h after CIDR removal 28.6% group. In conclusion, these studies will propose an optimal estrus synchronisation process with subsequent timing of AI and also will promote the Korean black goat breeding industry.http://www.ejast.org/archive/view_article?pid=jast-63-1-36artificial inseminationestrus synchronizationfrozen-thawed semenkorean black goat |
| spellingShingle | Kwan-Woo Kim Jinwook Lee Keun Jung Kim Eun-Do Lee Sung Woo Kim Sung-Soo Lee Sang-Hoon Lee Estrus synchronization and artificial insemination in Korean black goat (Capra hircus coreanae) using frozen-thawed semen Journal of Animal Science and Technology artificial insemination estrus synchronization frozen-thawed semen korean black goat |
| title | Estrus synchronization and artificial insemination in Korean black
goat (Capra hircus coreanae) using frozen-thawed
semen |
| title_full | Estrus synchronization and artificial insemination in Korean black
goat (Capra hircus coreanae) using frozen-thawed
semen |
| title_fullStr | Estrus synchronization and artificial insemination in Korean black
goat (Capra hircus coreanae) using frozen-thawed
semen |
| title_full_unstemmed | Estrus synchronization and artificial insemination in Korean black
goat (Capra hircus coreanae) using frozen-thawed
semen |
| title_short | Estrus synchronization and artificial insemination in Korean black
goat (Capra hircus coreanae) using frozen-thawed
semen |
| title_sort | estrus synchronization and artificial insemination in korean black goat capra hircus coreanae using frozen thawed semen |
| topic | artificial insemination estrus synchronization frozen-thawed semen korean black goat |
| url | http://www.ejast.org/archive/view_article?pid=jast-63-1-36 |
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