dc.contributor.author | Mutigaa, ER | |
dc.contributor.author | Mukasa-Mugerwaa, E | |
dc.contributor.author | Azagea, T | |
dc.date.accessioned | 2013-06-13T15:23:43Z | |
dc.date.available | 2013-06-13T15:23:43Z | |
dc.date.issued | 1993 | |
dc.identifier.citation | E. R. Mutiga, E. Mukasa-Mugerwa and T. Azage (1993). Luteolytic effect of prostaglandin F2α in Boran and Boran × Friesian cross-bred heifers. The Journal of Agricultural Science, 120, pp 103-106. doi:10.1017/S0021859600073652. | en |
dc.identifier.uri | http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=4800944 | |
dc.identifier.uri | http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/33365 | |
dc.description.abstract | The luteolytic effect of prostaglandin F2α (PGF2α) during the confirmed luteal phase of the oestrous cycle was evaluated in ten Boran and ten Boran × Friesian cross-bred heifers. Following injection with 25 mg Lutalyse, animals were bled every 6 h for 96 h and plasma progesterone (P4) determined by the ELISA technique. Borans had significantly (P < 0·05) smaller corpora lutea (12·01±0·72 ν. 17·03±2·10 mm) and responded faster to PGF2α injection (65·57±1·40 ν. 78·27±2·18 h) than the cross-bred heifers. However, there was no significant difference in either the initial P4 values (6.24±0·98 ν. 8·00±1·71 ng/ml) or the rate of its decline following PGF2α injection between the two breeds. Values declined sharply to basal levels (11% of the initial pretreatment values) within 48 h in both breeds. All ten cross-breds and eight Borans showed standing oestrus within a week of treatment. However, oestrus was better synchronized (P < 0·05) in Borans than cross-breds. It was concluded that PGF2α is effective for oestrus synchronization in both breeds, but oestrus occurred earlier and was more precise in Borans than in cross-breds. | en |
dc.language.iso | en | en |
dc.publisher | University of Nairobi | en |
dc.title | Luteolytic effect of prostaglandin F2α in Boran and Boran × Friesian cross-bred heifers | en |
dc.type | Article | en |
local.publisher | Department of Clinical Studies, University of Nairobi | en |