Effect of trypanosomosis on the resumption of postpartum ovarian function and oestrus activity in zebu cows
2000
Markos Tibo | Mukasa-Mugerwa, E. (ILRI, Addis Abeba (Ethiopia)) | Getachew Abebe | Woudyalew Mulatu
The effect of trypanosomosis on the resumption of postpartum ovarian function and oestrus activity was studied in small East African zebu cows maintained under natural trypanosomosis challenge. This was done through the determination of milk progesterone levels using the enzyme-linked immunosorbent assay (ELISA), packed cell volumem (PVC), and darkground/phase contrast buffy coat examination to estimate the parasitic burden. the mean duration of postpartum anoestrus interval (PPAI) was longer (P0.01) in infected than non-infected cows (171.3 vs 96.1 days, respectively). this was consistent with the negative correlation (r
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