Descubre y comparte nuestro conocimiento público

Se han encontrado 11 recursos

Resultados de búsqueda

Jembere, T.Kebede, K.Rischkowsky, Barbara A.Haile, AynalemOkeyo Mwai, AllyDessie, Tadelle[Recording birth weight has no significance in village based genetic improvement programs of small ruminants]Recording birth weight has no significance in village based genetic improvement programs of small ruminants

Conventional productivity evaluation criteria are inadequate to evaluate subsistence livestock production, because: (1) they fail to capture non-marketable benefits of the livestock; and (2) the core concept of a single limiting input is inappropriate to subsistence production, as multiple limiti...


Ayalew, W.King, J.M.Bruns, E.Rischkowsky, Barbara A.[Economic evaluation of smallholder subsistence livestock production: Lessons from an Ethiopian goat development program]Economic evaluation of smallholder subsistence livestock production: Lessons from an Ethiopian goat development program

Crossbreeding of goats in traditional subsistence flocks had been promoted in selected villages of eastern Ethiopian highlands as a means to quick genetic progress based on the thesis that crossbreeding can increase the net contribution of goats. Observations on flock dynamics patterns of smallho...


Ayalew, W.King, J.M.Bruns, E.W.Rischkowsky, Barbara A.[Practicalities of sustaining a goat-crossbreeding programme in eastern Ethiopia]Practicalities of sustaining a goat-crossbreeding programme in eastern Ethiopia

A breeding program to improve income from Raeini cashmere herds run by nomads in Southern Iran was implemented. Eight nomads agreed on improving fleece weight, body weight and down yield while reducing cashmere fibre diameter of white coated goats. Economic weights were calculated to define a bre...


Mueller, J.P.Ansari-Renani, H.R.Momen, S.M.S.Ehsani, M.Alipour, O.Rischkowsky, Barbara A.[Implementation of a cashmere goat breeding program amongst nomads in Southern Iran]Implementation of a cashmere goat breeding program amongst nomads in Southern Iran

Low adoption rates of introduced technologies in spite of manifestly increased production suggestthat livestock developer and farmer value livestock differently. The purpose of this paper is torelate productivity more closely to the perspective of the farmer. The concept of productivity isreviewe...


Ayalew, W.Rischkowsky, Barbara A.King, J.M.[The concept and calculation of net benefits from goats in Ethiopian smallholdings]The concept and calculation of net benefits from goats in Ethiopian smallholdings

With the main objective of improving Tajik mohair quantity and quality, frozen semen from eight top performance tested Texan Angora bucks was imported and used on 459 selected local goats from 11 farmers in two insemination seasons. Conception rates in both seasons were very low. Sixty six Texan ...


Mueller, J.P.Kosimov, M.A.Kosimov F.F.Brent, L.Nishanov, N.Rischkowsky, Barbara A.[Do Texas Angora bucks improve mohair weight and quality traits of Tajik Angora goats? Short communication]Do Texas Angora bucks improve mohair weight and quality traits of Tajik Angora goats? Short communication

In this study we genotyped 14 microsatellites to assess genetic diversity, population stratification and demographic dynamics using Egyptian local goats (Zaraibi, Baladi, Saidi and Barki) and the Shami (Damascus) goat from the Middle East and West Asia close to the geographic center of goat domes...


Elbeltagy, A.R.Aboul-Naga, A.M.Hassen, H.Solouma, G.M.Rischkowsky, Barbara A.Wacharo, J.M.[Genetic diversity and structure of goats within an early livestock dispersal area in Eastern North Africa]Genetic diversity and structure of goats within an early livestock dispersal area in Eastern North Africa

Goats and sheep are versatile domesticates that have been integrated into diverse environments and production systems. Natural and artificial selection have shaped the variation in the two species, but natural selection has played the major role among indigenous flocks. To investigate signals of ...


Kim, E.S.Elbeltagy, A.R.Aboul-Naga, A.M.Rischkowsky, Barbara A.Sayre, B.Mwacharo, Joram M.Rothschild, Max F.[Multiple genomic signatures of selection in goats and sheep indigenous to a hot arid environment]Multiple genomic signatures of selection in goats and sheep indigenous to a hot arid environment

A meta-analysis of 84 published reports on goats was conducted to calculate weighted and unweighted average direct heritability (ha2), maternal genetic effect (hm2), common environmental effect (c2), repeatability (R), genetic (rg) and phenotypic (rp) correlations for growth, reproduction and mil...


Jembere, T.Dessie, TadelleRischkowsky, Barbara A.Kebede, K.Okeyo Mwai, AllyHaile, Aynalem[Meta-analysis of average estimates of genetic parameters for growth, reproduction and milk production traits in goats]Meta-analysis of average estimates of genetic parameters for growth, reproduction and milk production traits in goats
Jembere, T.Rischkowsky, Barbara A.Dessie, TadelleKebede, K.Okeyo Mwai, AllyMirkena, T.Haile, Aynalem[Genetic and economic evaluation of alternative breeding scenarios for community based productivity improvements of three indigenous goat breeds in Ethiopia]Genetic and economic evaluation of alternative breeding scenarios for community based productivity improvements of three indigenous goat breeds in Ethiopia

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso