Immunization against androstenedione to improve the reproductive efficiency in Nilagiri and Sandyno ewes
Healthy Nilagiri (90) and Sandyno (90) ewes were selected and allotted to 3 treatment groups of 15 ewes each, viz. AF (Androstenedione immunogen full dose), AH (Androstenedione immunogen half dose) and CC (Control ewes). The experiment was carried out in main and off breeding seasons. The ewes from...
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| Format: | Article |
| Language: | English |
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Indian Council of Agricultural Research
2022-01-01
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| Series: | Indian Journal of Animal Sciences |
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| Online Access: | https://epubs.icar.org.in/index.php/IJAnS/article/view/119818 |
| _version_ | 1811169032555986944 |
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| author | R ANIL KUMAR C CHANDRAHASAN M SELVARAJU |
| author_facet | R ANIL KUMAR C CHANDRAHASAN M SELVARAJU |
| author_sort | R ANIL KUMAR |
| collection | DOAJ |
| description |
Healthy Nilagiri (90) and Sandyno (90) ewes were selected and allotted to 3 treatment groups of 15 ewes each, viz. AF (Androstenedione immunogen full dose), AH (Androstenedione immunogen half dose) and CC (Control ewes). The experiment was carried out in main and off breeding seasons. The ewes from AF and AH groups were injected with 2 ml (full dose) and 1 ml (half dose) of androstenedione immunogen at 8 and 4 weeks respectively before the start of breeding season. Immunization of ewes against androstenedione had no significant effect on tupping and lambing percentage. The litter size at birth was significantly increased in AF (1.47±0.07) and in AH (1.40±0.07) groups. The litter size was highest in AF Sandyno ewes (1.60±0.09) and in AH Nilagiri ewes (1.43±0.11). The litter size for immunized group ewes was higher during main breeding season (1.40±0.04) than off breeding season (1.23±0.06). Nilagiri (1.31±0.05) and Sandyno (1.33±0.05) ewes had similar litter size at birth. The litter weight at birth and weaning were significantly higher in AF (3.95±0.13 and 13.89±0.61 kg) groups followed by AH (3.80±0.13 and 13.19±0.61 kg) and CC (3.18±0.13 and 10.89±0.66 kg) groups. The weaning percentage/ survivability were similar for all the treatment groups.
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| first_indexed | 2024-04-10T16:35:57Z |
| format | Article |
| id | doaj.art-afac43a5ff5b4beb91a0aaaa55910986 |
| institution | Directory Open Access Journal |
| issn | 0367-8318 2394-3327 |
| language | English |
| last_indexed | 2024-04-10T16:35:57Z |
| publishDate | 2022-01-01 |
| publisher | Indian Council of Agricultural Research |
| record_format | Article |
| series | Indian Journal of Animal Sciences |
| spelling | doaj.art-afac43a5ff5b4beb91a0aaaa559109862023-02-08T11:30:36ZengIndian Council of Agricultural ResearchIndian Journal of Animal Sciences0367-83182394-33272022-01-01911210.56093/ijans.v91i12.119818Immunization against androstenedione to improve the reproductive efficiency in Nilagiri and Sandyno ewesR ANIL KUMAR0C CHANDRAHASAN1M SELVARAJU2Sheep Breeding Research Station, Sandynallah, Ooty, Tamil Nadu 643 237 IndiaSheep Breeding Research Station, Sandynallah, Ooty, Tamil Nadu 643 237 IndiaVeterinary College and Research Institute, Namakkal, Tamil Nadu. Healthy Nilagiri (90) and Sandyno (90) ewes were selected and allotted to 3 treatment groups of 15 ewes each, viz. AF (Androstenedione immunogen full dose), AH (Androstenedione immunogen half dose) and CC (Control ewes). The experiment was carried out in main and off breeding seasons. The ewes from AF and AH groups were injected with 2 ml (full dose) and 1 ml (half dose) of androstenedione immunogen at 8 and 4 weeks respectively before the start of breeding season. Immunization of ewes against androstenedione had no significant effect on tupping and lambing percentage. The litter size at birth was significantly increased in AF (1.47±0.07) and in AH (1.40±0.07) groups. The litter size was highest in AF Sandyno ewes (1.60±0.09) and in AH Nilagiri ewes (1.43±0.11). The litter size for immunized group ewes was higher during main breeding season (1.40±0.04) than off breeding season (1.23±0.06). Nilagiri (1.31±0.05) and Sandyno (1.33±0.05) ewes had similar litter size at birth. The litter weight at birth and weaning were significantly higher in AF (3.95±0.13 and 13.89±0.61 kg) groups followed by AH (3.80±0.13 and 13.19±0.61 kg) and CC (3.18±0.13 and 10.89±0.66 kg) groups. The weaning percentage/ survivability were similar for all the treatment groups. https://epubs.icar.org.in/index.php/IJAnS/article/view/119818Androstenedione immunizationEwesLitter sizeLitter weightReproductive efficiency |
| spellingShingle | R ANIL KUMAR C CHANDRAHASAN M SELVARAJU Immunization against androstenedione to improve the reproductive efficiency in Nilagiri and Sandyno ewes Indian Journal of Animal Sciences Androstenedione immunization Ewes Litter size Litter weight Reproductive efficiency |
| title | Immunization against androstenedione to improve the reproductive efficiency in Nilagiri and Sandyno ewes |
| title_full | Immunization against androstenedione to improve the reproductive efficiency in Nilagiri and Sandyno ewes |
| title_fullStr | Immunization against androstenedione to improve the reproductive efficiency in Nilagiri and Sandyno ewes |
| title_full_unstemmed | Immunization against androstenedione to improve the reproductive efficiency in Nilagiri and Sandyno ewes |
| title_short | Immunization against androstenedione to improve the reproductive efficiency in Nilagiri and Sandyno ewes |
| title_sort | immunization against androstenedione to improve the reproductive efficiency in nilagiri and sandyno ewes |
| topic | Androstenedione immunization Ewes Litter size Litter weight Reproductive efficiency |
| url | https://epubs.icar.org.in/index.php/IJAnS/article/view/119818 |
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