Sow fertility after conventional AI with insemination doses of various volumes and spermatozoa number
2009
Stancic, B. | Radovic, I. | Bozic, A. | Gagrcin, M., University of Novi Sad, Novi Sad (Serbia). Faculty of Agriculture | Anderson, R., United States Department of Agriculture /Agricultural Research Service, Texas (USA). Southern Plains Agricultural Research Center, Food and Feed Safety Research Unit, College Station
The objective of this paper is to present our results in sow fertility (% of farrowing and litter size), after the conventional intracervical insemination, performed with the insemination doses of the reduced volume and number of spermatozoa. The obtained results show that the 2-fold reduction of the spermatozoa number in the 100 ml dose volume, did not significantly affect the farrowing rate and resulting litter sizes in inseminated sows. Conversely, a 2-fold reduction of the dose volume to 50 ml greatly decreased the farrowing rate but did not affect litter size. Accordingly, by reducing the number of spermatozoa in the dose of conventional volume from 4x10**9 to 2x10**9 of the motile spermatozoa it is possible to obtain twice as many insemination doses from one ejaculate and thus double the number of inseminated sows per boar per year.
Mostrar más [+] Menos [-]Palabras clave de AGROVOC
Información bibliográfica
Este registro bibliográfico ha sido proporcionado por Matica Srpska Library