Selecciona los documentos para visualizarlos
Nombre del archivo | Ver recurso |
---|
Se han encontrado 13 recursos
Postpartum ovarian activity was investigated in dairy cows in urban/peri urban dairy production systems in and around Addis Ababa using milk progesterone profiles. Nineteen crossbred (Friesian x Zebu) dairy cows which calved between March and June 1998 were used for the study. Milk samples were c...
The study was conducted to evaluate the reproduction efficiency of zebu and crossbred cows measured by the inter-estrus and inter-service intervals using data from Bako Agricultural Research Center. The overall mean inter-estrus and inter-service intervals were 44.3 t 0.85 and 49.1 t 1.24 days, r...
Milk yield, milk composition and body weight change of crossbred dairy cows (Holstein Friesian X Zebu) were studied in the urban and peri-urban dairy production systems in the Addis Ababa milk shed between December 1997 and November 1998. Ninety-seven cows, with parities above two and at the begi...
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...
An on-farm monitoring study was carried out in the urban and peri-urban dairy production systems in the Addis Ababa milk shed to assess variations in on farm nutrient intake of dairy cows (Holstein Friesian X Zebu) and feed balance. Ninety seven cows, with parities above two and at the beginning ...
Postpartum body weight dynamics of zebu and crossbred cows in relation to postpartum reproduction was studied using data from the Bako Agricultural Research Centre. Body weight at calving, first postpartum oestrus, first service and conception were analysed using the General Linear Model which in...
Based on the promising results obtained from on-station, the cow traction study was further taken to on-farm for verification under the Ethiopian smallholder farmers management conditions. The study was undertaken in Holetta area between 1992 and 1996 by involving 14 farmers. Mean dairy milk yiel...
This study examined estrus response, estrus response interval and pregnancy rate of Bos indicus and B. indicus x B. taurus crossbred cows and heifers after oestrus synchronization. A total of 101 non-pregnant and cycling animals, composed of 63 Boran (46 heifers and 17 cows) and 38 Boran-Simmenta...
Selecciona los documentos para visualizarlos
Nombre del archivo | Ver recurso |
---|