Effect of season on fertility of sows
Reduced fertility of sows during the warmer period of the year is a well-known occurrence in practical production. Namely, during summer months gilts become sexually mature later, the interval from weaning to estrus is prolonged, there is a greater number of postlactation silent estruses anestrias a...
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| Format: | Article |
| Language: | English |
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Faculty of Veterinary Medicine, Belgrade
2002-01-01
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| Series: | Veterinarski Glasnik |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0350-2457/2002/0350-24570202097S.pdf |
| _version_ | 1819003280798253056 |
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| author | Stančić Blagoje L. Gagrčin Mladen Kovčin Stanimir |
| author_facet | Stančić Blagoje L. Gagrčin Mladen Kovčin Stanimir |
| author_sort | Stančić Blagoje L. |
| collection | DOAJ |
| description | Reduced fertility of sows during the warmer period of the year is a well-known occurrence in practical production. Namely, during summer months gilts become sexually mature later, the interval from weaning to estrus is prolonged, there is a greater number of postlactation silent estruses anestrias and ovarian cysts, the value of conception is lower, there are more irregular failed fertilizations, there is a higher degree of embryo mortality, and the litter size is smaller. This is why this occurrence presents an important zootechnological, veterinary-medical and economic problem. Most scientific research shows that this phenomenon is a consequence of the effects of an extended daily photoperiod and a higher ambient temperature. However, the degree of the individual effect of these factors has not been determined clearly, or the physiological and endocrinological mechanisms of their action. It is probably not possible completely to avoid the negative influence of seasonal factors on reduced fertility in sows during the summer period. However, it can be significantly alleviated with a regular maintenance technology, diet, hygiene and medical protection of sows. This paper presents knowledge acquired so far on the manifestation of this phenomenon, its physiological and endocrine bases, as well as possibilities for its practical resolving. |
| first_indexed | 2024-12-20T23:18:30Z |
| format | Article |
| id | doaj.art-1d3f69f64c624cba9f0d55141cca86ed |
| institution | Directory Open Access Journal |
| issn | 0350-2457 2406-0771 |
| language | English |
| last_indexed | 2024-12-20T23:18:30Z |
| publishDate | 2002-01-01 |
| publisher | Faculty of Veterinary Medicine, Belgrade |
| record_format | Article |
| series | Veterinarski Glasnik |
| spelling | doaj.art-1d3f69f64c624cba9f0d55141cca86ed2022-12-21T19:23:34ZengFaculty of Veterinary Medicine, BelgradeVeterinarski Glasnik0350-24572406-07712002-01-01561-29710410.2298/VETGL0202097S0350-24570202097SEffect of season on fertility of sowsStančić Blagoje L.0Gagrčin Mladen1Kovčin Stanimir2Poljoprivredni fakultet, Novi SadPoljoprivredni fakultet, Novi SadPoljoprivredni fakultet, Novi SadReduced fertility of sows during the warmer period of the year is a well-known occurrence in practical production. Namely, during summer months gilts become sexually mature later, the interval from weaning to estrus is prolonged, there is a greater number of postlactation silent estruses anestrias and ovarian cysts, the value of conception is lower, there are more irregular failed fertilizations, there is a higher degree of embryo mortality, and the litter size is smaller. This is why this occurrence presents an important zootechnological, veterinary-medical and economic problem. Most scientific research shows that this phenomenon is a consequence of the effects of an extended daily photoperiod and a higher ambient temperature. However, the degree of the individual effect of these factors has not been determined clearly, or the physiological and endocrinological mechanisms of their action. It is probably not possible completely to avoid the negative influence of seasonal factors on reduced fertility in sows during the summer period. However, it can be significantly alleviated with a regular maintenance technology, diet, hygiene and medical protection of sows. This paper presents knowledge acquired so far on the manifestation of this phenomenon, its physiological and endocrine bases, as well as possibilities for its practical resolving.http://www.doiserbia.nb.rs/img/doi/0350-2457/2002/0350-24570202097S.pdffertilityseason of the yearsow |
| spellingShingle | Stančić Blagoje L. Gagrčin Mladen Kovčin Stanimir Effect of season on fertility of sows Veterinarski Glasnik fertility season of the year sow |
| title | Effect of season on fertility of sows |
| title_full | Effect of season on fertility of sows |
| title_fullStr | Effect of season on fertility of sows |
| title_full_unstemmed | Effect of season on fertility of sows |
| title_short | Effect of season on fertility of sows |
| title_sort | effect of season on fertility of sows |
| topic | fertility season of the year sow |
| url | http://www.doiserbia.nb.rs/img/doi/0350-2457/2002/0350-24570202097S.pdf |
| work_keys_str_mv | AT stancicblagojel effectofseasononfertilityofsows AT gagrcinmladen effectofseasononfertilityofsows AT kovcinstanimir effectofseasononfertilityofsows |