Effects of increased levels of supplemental vitamins during the summer in a commercial artificial insemination boar stud
Heat stress due to increasing extremes in ambient temperature and humidity results in reduced semen quality in boars. This has caused reduced efficiency of the swine industry, requiring more boars to breed the same number of sows. Vitamins such as vitamin C (VC) and E (VE) have been shown to improve...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-01-01
|
| Series: | Animal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1751731119001150 |
| _version_ | 1818620607003099136 |
|---|---|
| author | D.W. Lugar K.E. Harlow J. Hundley M. Goncalves J. Bergstrom K.R. Stewart |
| author_facet | D.W. Lugar K.E. Harlow J. Hundley M. Goncalves J. Bergstrom K.R. Stewart |
| author_sort | D.W. Lugar |
| collection | DOAJ |
| description | Heat stress due to increasing extremes in ambient temperature and humidity results in reduced semen quality in boars. This has caused reduced efficiency of the swine industry, requiring more boars to breed the same number of sows. Vitamins such as vitamin C (VC) and E (VE) have been shown to improve semen quality in boars. Recently, vitamin D has been shown to improve semen quality in boars. The purpose of this experiment was to evaluate the effects of increased supplemental vitamins on boar reproduction during the summer season in a commercial boar stud. One hundred and sixty Pig Improvement Company (PIC) terminal line boars (n = 32 per treatment) and 39 maternal, heat-sensitive boars (n = 7 or 8 per treatment) were randomly allocated to treatment and fed a corn and soybean meal-based diet adjusted based on individual boar body condition score. A control (CNT) diet was used that met PIC recommendations for boars. Increased supplementation of specific vitamins was given in the form of a top-dress and consisted of CNT wheat middlings, CNT plus VC (560 mg/day), CNT plus 25-hydroxy vitamin D3 (VD) (125 µg/day), CNT plus VE (275 mg/day) and CNT plus VC, VD and VE (CDE). The experiment was split into three periods based on maximum daily high temperatures in the barn, where period 1 was weeks 1 to 4, period 2 was weeks 5 to 11 and period 3 was weeks 12 to 14. Semen was collected from boars as needed using the stud’s normal production schedule and was analyzed for sperm quantity and quality characteristics. There were no dietary effects on semen volume, sperm concentration or total sperm production (P ≥ 0.553). Total motility of sperm was not impacted by diet (P = 0.115); although, VC tended (P = 0.064) to have a greater progressive motility than CDE. Percentages of morphologically normal sperm and normal acrosomes were not affected by dietary supplementation (P ≥ 0.157). Period effects were observed for most semen quality parameters, with quality generally becoming reduced over time. The present study demonstrates that increased supplementation of vitamins beyond PIC recommendations was not beneficial for boar reproduction during the summer. |
| first_indexed | 2024-12-16T17:56:04Z |
| format | Article |
| id | doaj.art-8c8e37db14524d4fa81cbb729a116bf8 |
| institution | Directory Open Access Journal |
| issn | 1751-7311 |
| language | English |
| last_indexed | 2024-12-16T17:56:04Z |
| publishDate | 2019-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Animal |
| spelling | doaj.art-8c8e37db14524d4fa81cbb729a116bf82022-12-21T22:22:10ZengElsevierAnimal1751-73112019-01-01131125562568Effects of increased levels of supplemental vitamins during the summer in a commercial artificial insemination boar studD.W. Lugar0K.E. Harlow1J. Hundley2M. Goncalves3J. Bergstrom4K.R. Stewart5Department of Agriculture, Illinois State University, 301 N. Main Street Ropp Agriculture Building Normal, IL 61790, USADepartment of Animal Sciences, Purdue University, 270 S. Russell Street Creighton Hall of Animal Sciences, West Lafayette, IN 47907, USAPig Improvement Company USA, Inc., 100 Bluegrass Commons Blvd #2200 Hendersonville, TN 37075, USAPig Improvement Company USA, Inc., 100 Bluegrass Commons Blvd #2200 Hendersonville, TN 37075, USADSM Nutritional Products, 45 Waterview Blvd, Parsippany, NJ 07054, USADepartment of Animal Sciences, Purdue University, 270 S. Russell Street Creighton Hall of Animal Sciences, West Lafayette, IN 47907, USAHeat stress due to increasing extremes in ambient temperature and humidity results in reduced semen quality in boars. This has caused reduced efficiency of the swine industry, requiring more boars to breed the same number of sows. Vitamins such as vitamin C (VC) and E (VE) have been shown to improve semen quality in boars. Recently, vitamin D has been shown to improve semen quality in boars. The purpose of this experiment was to evaluate the effects of increased supplemental vitamins on boar reproduction during the summer season in a commercial boar stud. One hundred and sixty Pig Improvement Company (PIC) terminal line boars (n = 32 per treatment) and 39 maternal, heat-sensitive boars (n = 7 or 8 per treatment) were randomly allocated to treatment and fed a corn and soybean meal-based diet adjusted based on individual boar body condition score. A control (CNT) diet was used that met PIC recommendations for boars. Increased supplementation of specific vitamins was given in the form of a top-dress and consisted of CNT wheat middlings, CNT plus VC (560 mg/day), CNT plus 25-hydroxy vitamin D3 (VD) (125 µg/day), CNT plus VE (275 mg/day) and CNT plus VC, VD and VE (CDE). The experiment was split into three periods based on maximum daily high temperatures in the barn, where period 1 was weeks 1 to 4, period 2 was weeks 5 to 11 and period 3 was weeks 12 to 14. Semen was collected from boars as needed using the stud’s normal production schedule and was analyzed for sperm quantity and quality characteristics. There were no dietary effects on semen volume, sperm concentration or total sperm production (P ≥ 0.553). Total motility of sperm was not impacted by diet (P = 0.115); although, VC tended (P = 0.064) to have a greater progressive motility than CDE. Percentages of morphologically normal sperm and normal acrosomes were not affected by dietary supplementation (P ≥ 0.157). Period effects were observed for most semen quality parameters, with quality generally becoming reduced over time. The present study demonstrates that increased supplementation of vitamins beyond PIC recommendations was not beneficial for boar reproduction during the summer.http://www.sciencedirect.com/science/article/pii/S1751731119001150swineheat stressseasonalitysemen productionvitamins |
| spellingShingle | D.W. Lugar K.E. Harlow J. Hundley M. Goncalves J. Bergstrom K.R. Stewart Effects of increased levels of supplemental vitamins during the summer in a commercial artificial insemination boar stud Animal swine heat stress seasonality semen production vitamins |
| title | Effects of increased levels of supplemental vitamins during the summer in a commercial artificial insemination boar stud |
| title_full | Effects of increased levels of supplemental vitamins during the summer in a commercial artificial insemination boar stud |
| title_fullStr | Effects of increased levels of supplemental vitamins during the summer in a commercial artificial insemination boar stud |
| title_full_unstemmed | Effects of increased levels of supplemental vitamins during the summer in a commercial artificial insemination boar stud |
| title_short | Effects of increased levels of supplemental vitamins during the summer in a commercial artificial insemination boar stud |
| title_sort | effects of increased levels of supplemental vitamins during the summer in a commercial artificial insemination boar stud |
| topic | swine heat stress seasonality semen production vitamins |
| url | http://www.sciencedirect.com/science/article/pii/S1751731119001150 |
| work_keys_str_mv | AT dwlugar effectsofincreasedlevelsofsupplementalvitaminsduringthesummerinacommercialartificialinseminationboarstud AT keharlow effectsofincreasedlevelsofsupplementalvitaminsduringthesummerinacommercialartificialinseminationboarstud AT jhundley effectsofincreasedlevelsofsupplementalvitaminsduringthesummerinacommercialartificialinseminationboarstud AT mgoncalves effectsofincreasedlevelsofsupplementalvitaminsduringthesummerinacommercialartificialinseminationboarstud AT jbergstrom effectsofincreasedlevelsofsupplementalvitaminsduringthesummerinacommercialartificialinseminationboarstud AT krstewart effectsofincreasedlevelsofsupplementalvitaminsduringthesummerinacommercialartificialinseminationboarstud |