The growth potential of local chickens in Malawi was evaluated by comparing their growth
performance under cage-fed and free-range management conditions. Chicks (n = 106) were collected from
39 farmers in 19 villages and individually raised in cages from an average age of 9 weeks to 20 weeks. On...
Gondwe, T.N.P.
,
Wollny, C.B.A.
,
[Evaluation of the growth potential of local chickens in Malawi]
,
Evaluation of the growth potential of local chickens in Malawi
This study aimed to characterize the local chickens and their production systems and to investigate the opportunities for improvement. The study was carried out in 18 villages in northern Jordan with the participation of 120 households. Data were collected by individual interviews and surveys sup...
Abdelqader, A.
,
Wollny, C.B.A.
,
Gauly, M.
,
[Characterization of local chicken production systems and their potential under different levels of management practice in Jordan]
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Characterization of local chicken production systems and their potential under different levels of management practice in Jordan
This paper outlines key factors contributing to the erosion of animal genetic resources and discusses strategic options for policy makers. The ratification of the Convention on Biological Diversity (CBD) in 1993 represents an international consensus to conserve biodiversity including that of farm...
Wollny, C.B.A.
,
[The need to conserve farm animal genetic resources in Africa: Should policy makers be concerned?]
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The need to conserve farm animal genetic resources in Africa: Should policy makers be concerned?
This study was undertaken to estimate the potential genetic gains in milk yield by using several
alternative selection criteria which included milk yield and reproductive traits of dairy cattle in
Malawi. Applying the selection index procedure, the expected genetic gain in each trait in the
diffe...
Chagunda, M.G.G.
,
Wollny, C.B.A.
,
Bruns, E.W.
,
[Potential genetic gain in dairy production of Holstein Friesian cattle applying a selection index]
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Potential genetic gain in dairy production of Holstein Friesian cattle applying a selection index
Over the last two decades, dairy cattle management in Malawi has been oriented towards increasing
milk yield per animal. One consequence of this process has been reliance on Holstein Friesian bull
semen from temperate regions. The aim of the current study was to evaluate the performance of
Holste...
Chagunda, M.G.G.
,
Bruns, E.W.
,
King, J.M.
,
Wollny, C.B.A.
,
[Evaluation of the breeding strategy for milk yield of Holstein Friesian cows on large scale dairy farms in Malawi]
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Evaluation of the breeding strategy for milk yield of Holstein Friesian cows on large scale dairy farms in Malawi
Comparative resistance to different isolates of Ascaridia galli was investigated in a local chicken breed from Jordan (LC) and in the Lohmann LSL white chicken (LW) strain. In two trials, birds of LC and LW were inoculated orally at 1-day old with 250 embryonated A. galli eggs. In the first trial...
Abdelqader, A.
,
Gauly, M.
,
Wollny, C.B.A.
,
[Response of two breeds of chickens to Ascaridia galli infections from two geographic sources]
,
Response of two breeds of chickens to Ascaridia galli infections from two geographic sources
This paper describes a study aimed at evaluating the effect of selecting sires based on their breeding values for milk yield estimated in their countries of origin on reproductive performance of their daughters on large-scale dairy farms in Malawi. To do this an analysis was done using 2362 recor...
Chagunda, M.G.G.
,
Bruns, E.W.
,
Wollny, C.B.A.
,
King, H.M.
,
[Effect of milk yield-based selection on some reproductive traits of Holstein Friesian cows on large-scale dairy farms in Malawi]
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Effect of milk yield-based selection on some reproductive traits of Holstein Friesian cows on large-scale dairy farms in Malawi
Despite the significant contribution of cattle to the country, little attention has been given to identify, characterize and conserve the diversity of cattle breeds. This paper presents a unique cattle population found in a monastery in the northwest of Ethiopia referred to as Mahibere–Silassie c...
Tesfahun, G.
,
Ayalew, W.
,
Abdulai, A.
,
Wollny, C.B.A.
,
Bayer, W.
,
[A framework for community based management of indigenous cattle genetic resources in Dano district, central Ethiopia]
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A framework for community based management of indigenous cattle genetic resources in Dano district, central Ethiopia
The status of the artificial insemination (AI) program in Malawi was analysed exemplary in one of three small scale dairy farming regions. Data available from the Blantyre milk-shed area showed that the government controlled artificial insemination program applies a breed substitution strategy re...
Chagunda, M.G.
,
Wollny, C.B.A.
,
Bruns, E.
,
Kamwanja, L.A.
,
[Evaluation of the artificial insemination programme for small-scale dairy farms in Malawi]
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Evaluation of the artificial insemination programme for small-scale dairy farms in Malawi
The objective of this work was to assess sensory quality and retail life of Horro beef muscles in Ethiopia. Six muscles: M. rhomboideus (RM), M. infraspinatus (IS), M. longissimus lumborum (LL), M. semimembranosus (SM), M. biceps femoris (BF) and M. rectus femoris (RF) were considered. Sensory qu...
Yadata, M.A.
,
Werner, C.
,
Tibbo, Markos
,
Wollny, C.B.A.
,
Wicke, M.
,
[Assessment of the sensory quality and shelf stability of selected Horro beef muscles in Ethiopia]
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Assessment of the sensory quality and shelf stability of selected Horro beef muscles in Ethiopia