Effects of free feeding time system and energy level to improve the reproductive performance of lactating sows during summer
The reproductive performance of lactating sows was investigated by using different feeding methods including conventional feeding (CF, 3 times/d) or free feeding (FF), and different dietary energy level including low energy (LE: 3,300) or h...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Korean Society of Animal Sciences and Technology
2020-05-01
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| Series: | Journal of Animal Science and Technology |
| Subjects: | |
| Online Access: | http://www.ejast.org/archive/view_article?pid=jast-62-3-356 |
| _version_ | 1811286346349674496 |
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| author | Kwang Yeol Kim Yo Han Choi Abdolreza Hosseindoust Min Ju Kim Joseph Moturi Tae Gyun Kim Chang Hyun Song Jun Hyung Lee Byung Jo Chae |
| author_facet | Kwang Yeol Kim Yo Han Choi Abdolreza Hosseindoust Min Ju Kim Joseph Moturi Tae Gyun Kim Chang Hyun Song Jun Hyung Lee Byung Jo Chae |
| author_sort | Kwang Yeol Kim |
| collection | DOAJ |
| description | The reproductive performance of lactating sows was investigated by using
different feeding methods including conventional feeding (CF, 3 times/d) or free
feeding (FF), and different dietary energy level including low energy (LE:
3,300) or high energy (HE: 3,400 kcal/kg) during the hot season. A total of
twenty-eight crossbred (Yorkshire × Landrace) sows were distributed into
four treatments as a 2 × 2 factorial arrangement. Sows in the FF group
showed lower body weight and backfat loss (p < 0.05)
compared with the CF group. Backfat loss during lactation was lower
(p < 0.05) in sows fed HE diet than in that fed LE
diet. There were no significant differences in litter survival rate and weaning
to estrus interval, but the litter weight at weaning was improved
(p < 0.05) in FF and HE sows. Hence, it is concluded
that using the free-feeding system or increased dietary energy density leads to
improved sow performance during hot ambient temperature. |
| first_indexed | 2024-04-13T02:58:18Z |
| format | Article |
| id | doaj.art-fe1c05992a784f61b3d8f9b04a8e7419 |
| institution | Directory Open Access Journal |
| issn | 2672-0191 2055-0391 |
| language | English |
| last_indexed | 2024-04-13T02:58:18Z |
| publishDate | 2020-05-01 |
| publisher | Korean Society of Animal Sciences and Technology |
| record_format | Article |
| series | Journal of Animal Science and Technology |
| spelling | doaj.art-fe1c05992a784f61b3d8f9b04a8e74192022-12-22T03:05:32ZengKorean Society of Animal Sciences and TechnologyJournal of Animal Science and Technology2672-01912055-03912020-05-0162335636410.5187/jast.2020.62.3.356jast-62-3-356Effects of free feeding time system and energy level to improve the reproductive performance of lactating sows during summerKwang Yeol Kim0Yo Han Choi1Abdolreza Hosseindoust2Min Ju Kim3Joseph Moturi4Tae Gyun Kim5Chang Hyun Song6Jun Hyung Lee7Byung Jo Chae8Department of Animal Resources Science, College of Animal Life Sciences, Kangwon National University, Department of Animal Resources Development Swine Science Division, Department of Animal Resources Science, College of Animal Life Sciences, Kangwon National University, Department of Animal Resources Science, College of Animal Life Sciences, Kangwon National University, Department of Animal Resources Science, College of Animal Life Sciences, Kangwon National University, Department of Animal Resources Science, College of Animal Life Sciences, Kangwon National University, Department of Animal Resources Science, College of Animal Life Sciences, Kangwon National University, Department of Animal Resources Science, College of Animal Life Sciences, Kangwon National University, Department of Animal Resources Science, College of Animal Life Sciences, Kangwon National University, The reproductive performance of lactating sows was investigated by using different feeding methods including conventional feeding (CF, 3 times/d) or free feeding (FF), and different dietary energy level including low energy (LE: 3,300) or high energy (HE: 3,400 kcal/kg) during the hot season. A total of twenty-eight crossbred (Yorkshire × Landrace) sows were distributed into four treatments as a 2 × 2 factorial arrangement. Sows in the FF group showed lower body weight and backfat loss (p < 0.05) compared with the CF group. Backfat loss during lactation was lower (p < 0.05) in sows fed HE diet than in that fed LE diet. There were no significant differences in litter survival rate and weaning to estrus interval, but the litter weight at weaning was improved (p < 0.05) in FF and HE sows. Hence, it is concluded that using the free-feeding system or increased dietary energy density leads to improved sow performance during hot ambient temperature.http://www.ejast.org/archive/view_article?pid=jast-62-3-356energyfeedingheat stresslactating sowspiglets |
| spellingShingle | Kwang Yeol Kim Yo Han Choi Abdolreza Hosseindoust Min Ju Kim Joseph Moturi Tae Gyun Kim Chang Hyun Song Jun Hyung Lee Byung Jo Chae Effects of free feeding time system and energy level to improve the reproductive performance of lactating sows during summer Journal of Animal Science and Technology energy feeding heat stress lactating sows piglets |
| title | Effects of free feeding time system and energy level to improve the
reproductive performance of lactating sows during summer |
| title_full | Effects of free feeding time system and energy level to improve the
reproductive performance of lactating sows during summer |
| title_fullStr | Effects of free feeding time system and energy level to improve the
reproductive performance of lactating sows during summer |
| title_full_unstemmed | Effects of free feeding time system and energy level to improve the
reproductive performance of lactating sows during summer |
| title_short | Effects of free feeding time system and energy level to improve the
reproductive performance of lactating sows during summer |
| title_sort | effects of free feeding time system and energy level to improve the reproductive performance of lactating sows during summer |
| topic | energy feeding heat stress lactating sows piglets |
| url | http://www.ejast.org/archive/view_article?pid=jast-62-3-356 |
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