Factors influencing the proportion of offspring from a second insemination in sows
| Autor: | L.A. den Hartog, P.C. Vesseur, Bas Kemp |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 1996 |
| Předmět: |
Estrous cycle
Boar fertility BOAR Offspring Artificial insemination medicine.medical_treatment Pig-fertility Semen General Medicine Weaning to oestrus interval Biology Insemination Andrology Endocrinology Food Animals medicine WIAS Weaning Veehouderij Animal Science and Zoology Animal Husbandry Parity (mathematics) |
| Zdroj: | Animal Reproduction Science 41 (1996) Animal Reproduction Science, 41, 255-265 |
| ISSN: | 0378-4320 |
| DOI: | 10.1016/0378-4320(95)01459-4 |
| Popis: | Sows ( n = 367) showing standing heat between days 4 and 6 after weaning were inseminated twice with a 24 h interval. To distinguish offspring, Great Yorkshire (GY) semen was used for the first insemination (ins1) and Meishan (MEI) semen for second (ins2), or in reverse order. Factors influencing the number of piglets born from ins2 were: weaning to oestrus interval (WOI, P P P P P P P P P It is concluded that the second insemination, 24 h after the first, did contribute to the offspring and that the level of this contribution was dependent on the factors WOI, genotype of the sow, parity and boar. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect