CATTLE BREED EVALUATION STUDIES BY THE INTERNATIONAL LIVESTOCK CENTRE FOR AFRICA (ILCA)

1983 ◽  
Vol 1 ◽  
pp. 17-20 ◽  
Author(s):  
J.C.M. Trail
Keyword(s):  
Production Systems ◽  
Evaluation Studies ◽  
Central Africa ◽  
Cattle Breed ◽  
Cattle Breeds ◽  
West And Central Africa

SUMMARYThis note describes work being carried out by ILCA on evaluation of the productivity of N'Dama, Sahiwal and Boran cattle breeds. Indications of the potential of the N'Dama to increase output from areas of trypanosomiasis risk has led to studies throughout West and Central Africa concerned with aspects of trypanotolerant livestock. Studies on the Sahiwal and many different crosses between Sahiwal and Ayrshires under a range of production systems have allowed suggestions to be made on achieving and maintaining optimal contributions from the Sahiwal breed. Similar ongoing studies on the Boran breed are described.

GUDALI CATTLE OF WEST AND CENTRAL AFRICA

1996 ◽  
Vol 17 ◽  
pp. 147-164 ◽  
Author(s):  
C. L. Tawah ◽  
J. E. O. Rege
Keyword(s):  
Natural Selection ◽  
Production Systems ◽  
Central Africa ◽  
Genetic Change ◽  
East African ◽  
Pastoral Systems ◽  
Husbandry Practices ◽  
West And Central Africa ◽  
Conventional Literature ◽  
Available Information

SUMMARYThe objective of this paper was to compile the available information in the conventional and non-conventional literature on the origin, distribution, ecological settings, utility, husbandry practices and production systems of the Gudali, a West and Central African shorthorned zebu which is similar in conformation, size and origin to the East African shorthorned zebu. These animals are reputed not only for their beef and dairy qualities. but also for their hardiness to the harsh northerly environments. Under the prevailing circumstances in the pastoral systems, natural selection is the primary force affecting any genetic change and, as a result, animals tend to perform relatively poorly. Most of the documented studies have been limited in scope and applicability. Therefore, further studies are needed to adequately characterize these animals under their different production systems.

Motives for utilizing the Blacksided Trønder and Nordland: A native cattle breed in Norway

2001 ◽  
Vol 31 ◽  
pp. 15-26 ◽  
Author(s):  
N. Sæther ◽  
O. Vangen
Keyword(s):  
Genetic Resources ◽  
Production Systems ◽  
Cattle Breed ◽  
National Average ◽  
Small Populations ◽  
Objective Information ◽  
Cattle Breeds ◽  
Native Breed ◽  
Native Cattle ◽  
Extensive Farming

SummaryA survey was conducted in order to investigate what motives farmers have to utilize one of the old, native cattle breeds in Norway, Blacksided Trønder and Nordland Cattle (STN). The questionnaire, which was sent to 1 772 farmers who inseminated with the STN breed from 1987 to 1997, revealed clear opinions on the differences between this breed and the predominant breed of the country, the Norwegian Cattle (NRF).The farms in the survey were characterized by having herd sizes above the national average, as well as having owners interested in extensive farming and to a certain extent aware of the special breeding challenges of small populations. The results showed that the STN breed was regarded as being significantly different for traits that may be considered as important in extensive production systems. The more idealistic motives linked to the genetic resources aspect showed a high priority.The survey also revealed an obvious need for more research and objective information about this old native breed.

scholarly journals Cotton in West and Central Africa: from the agricultural revolution to the agro-ecological transition

2021 ◽  
Vol 30 ◽  
pp. 5
Author(s):  
Mamy Soumaré ◽  
Michel Havard ◽  
Bruno Bachelier
Keyword(s):  
Social Inclusion ◽  
Production Systems ◽  
Research Work ◽  
Central Africa ◽  
Price Volatility ◽  
Vulnerable Groups ◽  
Agricultural Revolution ◽  
West And Central Africa ◽  
Economic Price ◽  
Ecological Transition

Since the 1970s, cotton has been a driving force in the transformation of agricultural production systems and a key element in local economies in the savannah areas of West and Central Africa (WCA). However, the sustainability of cotton-based production systems is often debated because of their effects on soils and the negative impacts of chemical pest control on the environment and human health. Through drastic reforms, the WCA cotton sector overcame the crises, showing its resilience. Today, research should be mobilized to help the sector tackle the major challenges: i) economic (price volatility, producers’ incomes), ii) social (inclusion of vulnerable groups, role of women and young people, etc.) and iii) environmental (impact of pesticides, soil degradation, etc.) and linked to climate change. The articles published in this issue present some results and perspectives of research work, which can help improving the sustainability of cotton systems in WCA, open paths towards an agro-ecological transition and address the new challenges.

scholarly journals Farmer Preferences and Market Values of Cattle Breeds of West and Central Africa

1998 ◽  
Vol 12 (2-3) ◽  
pp. 21-47 ◽  
Author(s):  
M. A. Jabbar ◽  
B. M. Swallow ◽  
G. D. M. d'Iteren ◽  
A. A. Busari
Keyword(s):  
Central Africa ◽  
Market Values ◽  
Cattle Breeds ◽  
West And Central Africa

REALIZATION OF PARENTAL INDICES OF COW PRODUCTIVITY IN DIFFERENT MILKING BREEDS AT BREEDING FARM "AGROFIRMA "PAKHMA"

2020 ◽  
Keyword(s):  
Milk Yield ◽  
Cattle Breed ◽  
Holstein Cattle ◽  
Milk Productivity ◽  
Cattle Breeds ◽  
Significant Difference ◽  
Production Indices ◽  
High Level ◽  
Beta Lactoglobulin ◽  
Percentage Protein

Combination of genotypes of main types’ genetic markers causes milk productivity in cattle. The article studies correlation between kappa casein genotypes (C3N3), beta-lactoglobulin (LGB), their complexes and milk production indices in cows bred under equal conditions at a breeding farm. The calculation of parental milk yield and fat indices between the three breeds showed a significant difference (P>0,999) of PCI of Ayrshire and Holstein cattle breed milk yield - 3395 kg, PCI of fat - 0,22%; between Holstein and Yaroslavl cattle breeds - 3200 kg, PCI offat - 0,16%. A significant difference of realization indices of protein between all three breeds was not stated. The highest realization ofparental milk yield index was stated - between Ayrshire and Yaroslavl cattle breeds- 113%, Holstein cattle breed - 88%. As for the fat and protein indices, all three cattle breeds showed a high realization of PCI from 98% to 109%. However, Holstein cattle breed showed the highest percentage: protein - 101%, fat - 109%. A significant difference of PCI realization of milk productivity in CSN3 and LGB genotypes was not stated. It was also stated that there is a tendency of high level parental indices realization when there is a higher number of B-allele variants in genotypes of cows.

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