Assesses the effect of cow-calf association and continuous suckling on the resumption of oestral activity; and monitors the temporal patterns of plasma progesterone during the post-partum period in grazing Ethiopian Small East African Zebu cows under uncontrolled mating.
Mukasa-Mugerwa, E.
,
Tegegne, Azage
,
Franceschini, R.
,
[Influence of suckling and continuous cow-calf association on the resumption of post-partum ovarian function in Bos indicus cows monitored by plasma progesterone profiles]
,
Influence of suckling and continuous cow-calf association on the resumption of post-partum ovarian function in Bos indicus cows monitored by plasma progesterone profiles
This study is aimed to characterize progesterone profiles of Menz ewes during gestation with intent to gain insight into applied clinical endocrinology in early pregnancy diagnosis and monitoring of prenatal reproductive wastage. Mean hormone concentrations were basal, but increased and remained ...
Mukasa-Mugerwa, E.
,
Viviani, P.
,
[Progesterone concentrations in peripheral plasma of Menz sheep during gestation and parturition]
,
Progesterone concentrations in peripheral plasma of Menz sheep during gestation and parturition
Presents the results of a study designed to characterize further the temporal patterns of oestrus onset and plasma progesterone profiles during the postpartum ovarian activitity in two groups of Ethiopian Bos indicus (Zebu) cows whose calves were either weaned at 4.5 months or at 7.5 months; repo...
Mukasa-Mugerwa, E.
,
Tegegne, Azage
,
Ketema, H.
,
[Patterns of postpartum oestrus onset and associated plasma progesterone profiles in Bos indicus cows in Ethiopia]
,
Patterns of postpartum oestrus onset and associated plasma progesterone profiles in Bos indicus cows in Ethiopia
A total of 137 cycling Zebu cows, each receiving a single dose of prostaglandin PGF 2a were used in an oestrus synchronization programme on three different farms. Of the cows on the three farms, 60.6 and 90.5 percent showed over oestrus and luteolysis, respectively. Pregnancy rate to fixed time i...
Presents results of a study conducted to assess the extent to which incubation time, temperature or failure to separate plasma soon after collection influence the plasma progesterone concentration in Ethiopian indigenous sheep.
Mukasa-Mugerwa, E.
,
Bekele, T.
,
Kasali, O.B.
,
[The effect of handling methods on subsequent plasma progesterone levels in sheep]
,
The effect of handling methods on subsequent plasma progesterone levels in sheep
Plasma progesterone concentrations were determined every 10 days for 38 grazing Menz ewe lambs from weaning until conception. Lambs were either fed extra supplementry concentrates and/or drenched for endoparasites. Inadequate nutrition delayed puberty onset by 4 to 5 months. Progesterone concentr...
Measures the duration of the post-partum anoestrus interval of fifty Ethiopian Menz ewes maintained on pasture grazing with uncontrolled mating; describes their associated blood progesterone patterns; and assesses their reproductive potential.
Mukasa-Mugerwa, E.
,
Ezaz, Z.
,
[Resumption of post-partum oestrous behaviour and associated plasma progesterone profiles in Menz ewes]
,
Resumption of post-partum oestrous behaviour and associated plasma progesterone profiles in Menz ewes
Plasma progesterone profiles were used to monitor post-partum reproductive activity in 12 Small East African Zebu (Bos indicus) cows allocated to either supplementary or no supplementary feeding (control) with continious or restricted (twice daily) suckling regimes. Intact bulls were used for bre...
Tegegne, Azage
,
Entwistle, K.W.
,
Mukasa-Mugerwa, E.
,
[Plasma progesterone and blood metabolite profiles in post-partum small East African Zebu cows]
,
Plasma progesterone and blood metabolite profiles in post-partum small East African Zebu cows
This paper presents the results of a comparative study conducted to characterize the oestrous phenonenon in Zebu and crossbred cattle and to determine oestrus detection using both androgenized cows and entire bulls. The study was conducted at ILRI Debre Zeit Research Station during the dry season...
Tegegne, Azage
,
Witru, G.
,
Mukasa-Mugerwa, E.
,
Kassa, T.
,
[Oestrus phenomenon and oestrus detection efficiency using androgenized cows and entire bulls in Boran and Boran x Friesian crossbred cows]
,
Oestrus phenomenon and oestrus detection efficiency using androgenized cows and entire bulls in Boran and Boran x Friesian crossbred cows