caa a22 4500 465744303 CHVBK 20180323111816.0 cr unu---uuuuu 170327e19900901xx s 000 0 eng 10.1007/BF02241014 doi (NATIONALLICENCE)springer-10.1007/BF02241014 Multiple superovulations in N'Dama heifers [Elektronische Daten] [T. Jordt, E. Lorenzini] Supervulations Repetees Chez Des Genisses N'Dama Summary: Five N'Dama heifers were superovulated with follicle stimulating hormone (FSH-P or Folltropin) a total of six times each. The superovulations were carried out between ongoing experimentalTrypanosoma congolense infections. Twenty-four (80%) of the 30 superovulations had a good ovarian response with 21 (70%) producing an average of 2·7 ± 0·4 (mean ± s.e.m.) embryos. The highest embryo production was achieved at the third and fourth superovulation, after which both the number of embryos and their quality declined. The overall pregnancy rate after transfer into Boran(Bos indicus) cow recipients was 50·9%. The uteri of the heifers increased considerably in size throughout the six superovulations which made it difficult to flush some of the animals after the third superovulation. Embryo transfer technology is a useful breeding tool in N'Dama heifers and multiple superovulations can be carried out with success. Centre for Tropical Veterinary Medicine, 1990 Jordt T. International Laboratory for Research on Animal Diseases (ILRAD), PO Box 30709, Nairobi, Kenya aut Lorenzini E. International Laboratory for Research on Animal Diseases (ILRAD), PO Box 30709, Nairobi, Kenya aut Tropical Animal Health and Production Kluwer Academic Publishers-Human Sciences Press 22/3(1990-09-01), 178-184 0049-4747 22:3<178 1990 22 11250 https://doi.org/10.1007/BF02241014 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02241014 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jordt T. International Laboratory for Research on Animal Diseases (ILRAD), PO Box 30709, Nairobi, Kenya aut NATIONALLICENCE 700 1- Lorenzini E. International Laboratory for Research on Animal Diseases (ILRAD), PO Box 30709, Nairobi, Kenya aut NATIONALLICENCE 773 0- Tropical Animal Health and Production Kluwer Academic Publishers-Human Sciences Press 22/3(1990-09-01), 178-184 0049-4747 22:3<178 1990 22 11250 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer