The State of Litter of Pigs in the Conditions of the Complex
The state of litter of large white pigs in industrial conditions was studied. Embryonic mortality is higher during the first 30 days of littering (21.6%) – in the period of histotrophic feeding of fetuses – before the beginning of placental connection formation. whereas during the whole period of pr...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2020-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/63/e3sconf_ebwff2020_01008.pdf |
| _version_ | 1819330859102109696 |
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| author | Siraziev Romazan Gruzdova Olesia |
| author_facet | Siraziev Romazan Gruzdova Olesia |
| author_sort | Siraziev Romazan |
| collection | DOAJ |
| description | The state of litter of large white pigs in industrial conditions was studied. Embryonic mortality is higher during the first 30 days of littering (21.6%) – in the period of histotrophic feeding of fetuses – before the beginning of placental connection formation. whereas during the whole period of pregnancy it is 38.4%. In a number of sows at different periods of littering. the number of corpus luteum and the number of fetuses from the side of the corresponding fertile horn do not coincide. that which indicates the migration of embryos into contralateral horn in the early timing of pregnancy. Fetuses growth rate is higher by the 45-days pregnancy. In the litter of pigs there are normotrophic (full-fledged. large-fetused). hypotrophic (small-weight) and stillborn pigs. There is close inverse relationship (r = -0.98 between fertility and full-fledgeness of piglets в гнездеin the nest. wherein the number of hypotrophic and stillborn ones as the number of newborns in the litter increases has direct positive correlation (r = + 0.98). The more piglets in the litter. the fewer full-fledged ones. and on the contrary. the number of hypotrophic and stillborns is increasing. |
| first_indexed | 2024-12-24T14:05:13Z |
| format | Article |
| id | doaj.art-b55f92ae87e84b6ea3cbcecdf438956e |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-24T14:05:13Z |
| publishDate | 2020-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-b55f92ae87e84b6ea3cbcecdf438956e2022-12-21T16:52:22ZengEDP SciencesE3S Web of Conferences2267-12422020-01-012030100810.1051/e3sconf/202020301008e3sconf_ebwff2020_01008The State of Litter of Pigs in the Conditions of the ComplexSiraziev Romazan0Gruzdova Olesia1Irkutsk Interregional Veterinary LaboratoryIrkutsk Interregional Veterinary LaboratoryThe state of litter of large white pigs in industrial conditions was studied. Embryonic mortality is higher during the first 30 days of littering (21.6%) – in the period of histotrophic feeding of fetuses – before the beginning of placental connection formation. whereas during the whole period of pregnancy it is 38.4%. In a number of sows at different periods of littering. the number of corpus luteum and the number of fetuses from the side of the corresponding fertile horn do not coincide. that which indicates the migration of embryos into contralateral horn in the early timing of pregnancy. Fetuses growth rate is higher by the 45-days pregnancy. In the litter of pigs there are normotrophic (full-fledged. large-fetused). hypotrophic (small-weight) and stillborn pigs. There is close inverse relationship (r = -0.98 between fertility and full-fledgeness of piglets в гнездеin the nest. wherein the number of hypotrophic and stillborn ones as the number of newborns in the litter increases has direct positive correlation (r = + 0.98). The more piglets in the litter. the fewer full-fledged ones. and on the contrary. the number of hypotrophic and stillborns is increasing.https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/63/e3sconf_ebwff2020_01008.pdf |
| spellingShingle | Siraziev Romazan Gruzdova Olesia The State of Litter of Pigs in the Conditions of the Complex E3S Web of Conferences |
| title | The State of Litter of Pigs in the Conditions of the Complex |
| title_full | The State of Litter of Pigs in the Conditions of the Complex |
| title_fullStr | The State of Litter of Pigs in the Conditions of the Complex |
| title_full_unstemmed | The State of Litter of Pigs in the Conditions of the Complex |
| title_short | The State of Litter of Pigs in the Conditions of the Complex |
| title_sort | state of litter of pigs in the conditions of the complex |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/63/e3sconf_ebwff2020_01008.pdf |
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