Indigenous pigs in Tanzania are descendants of earlier European introductions. However, a lack of systematic breeding plans, poor husbandry practices, genetic drift and possibly mutation have led to pigs of varied phentypes. A study undertaken in Mbeya region showed that the predominant managemen...
Mbaga, S.H.
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Lymo, C.M.
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Kifaro, G.C.
,
Lekule, F.P.
,
[Phenotypic characterization and production performance of local pigs under village settings in the southern highland zone, Tanzania]
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Phenotypic characterization and production performance of local pigs under village settings in the southern highland zone, Tanzania
This paper reviews the successful N’Dama cattle genetic improvement programme implemented in a low input productions system at the International Trypanotolerance Centre (ITC) in 1994, in the Gambia. The first part of the paper presents the genetic improvement programme. The second part deals with...
Bosso, N.A.
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Corr, N.
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Njie, M.
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Fall, Abdou
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Waaij, E.H. van der
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Arendonk, Johan A.M. van
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Jaitner, J.
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Dempfle, L.
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Agyemang, K.
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[The N'Dama cattle genetic improvement programme: A review]
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The N'Dama cattle genetic improvement programme: A review
The objective of this study was to assess the reproductive performance of two Nguni ecotypes (Nguni and Landim) raised in a subtropical environment to enhance strategies for livestock development and restocking programmes within the southern African region. Reproduction data collected between 199...
Maciel, S.M.A.
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Amimo, Joshua O.
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Martins, M
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Okeyo Mwai, Ally
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Scholtz, M.M.
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Neser, F.W.C.
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[Factors influencing reproductive performance of cows from different Nguni ecotypes in southern Mozambique]
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Factors influencing reproductive performance of cows from different Nguni ecotypes in southern Mozambique
Snyman, M.A.
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Erasmus, G.J.
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Wyk, J.B. van
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Olivier, J.J.
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[Genetic and phenotypic correlations among production and reproduction traits in Afrino sheep]
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Genetic and phenotypic correlations among production and reproduction traits in Afrino sheep
Polymorphic blood traits are very useful for studies of evolution, relationship and structure of breeds. Some of the systems are particularly valuable when no family data are available because the genotype can be determined directly. This paper reports the results of investigations of haemoglobin...
Braend, M.
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Khanna, N.D.
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[Haemoglobin and transferrin types of some West African cattle]
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Haemoglobin and transferrin types of some West African cattle
The distribution of electrophoretic variants of purine nucleoside phosphorylase (N.P. E.C.2.4.2.1) controlled by the alleles NP.H and NP.L was determined on erythrocyte lysates from zebu, Baoule and N'Dama/Baoule cross cattle. Electrophoresis was performed on cellulose acetate and NP revealed. Ze...
Queval, R.
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[Polymorphisme de la transferrine chez les bovins trypanosensibles et trypanotolerants de l'Afrique de l'Ouest. Repartition et frequence de leurs alleles]
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Polymorphisme de la transferrine chez les bovins trypanosensibles et trypanotolerants de l'Afrique de l'Ouest. Repartition et frequence de leurs alleles
Domestic yak plays a critical role in supporting the livelihoods of nomads in the Central Asian Highlands. Tianzhu White yak is a unique breed developed from a very small number of mutant founders and its white hair has a special niche market value. In this study, the genetic polymorphisms in Tyr...
Zhang, H.
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An, T.W.
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He, J.W.
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Luo, Y.Z.
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Han Jianlin
,
[Conserved exon 2 but a highly polymorphic 5'-UTR of Tyrosinase gene in Tianzhu White yak (Bos grunniens)]
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Conserved exon 2 but a highly polymorphic 5'-UTR of Tyrosinase gene in Tianzhu White yak (Bos grunniens)
Data on reproductive performance of the White Fulani (Bunaji) cattle in Southern Nigeria were analysed. Age at first calving, first and overall calving intervals averaged 4.03± 0.43 years, 436.19±9.32 and 420.98± 4.11 days respectively. The year of birth significantly affected age at first calvin...
Mrode, Raphael A.
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Akinokun, J.O.
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[Genetic parameters and factors affecting reproductive performance in White Fulani cattle in southern Nigeria]
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Genetic parameters and factors affecting reproductive performance in White Fulani cattle in southern Nigeria
Breed additive and non-additive effects as well as genetic parameters for calving interval (CI), days open (DO), age at first service (AFS), age at first calving (AFC), number of services per first conception (NSC) and breeding efficiency (BE) were estimated in Ethiopian Boran cattle and their cr...
Haile, Aynalem
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Joshi, B.K.
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Ayalew, W.
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Tegegne, Azage
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Singh, A.
,
[Genetic evaluation of Ethiopian Boran cattle and their crosses with Holstein Friesian in central Ethiopia: reproductive traits]
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Genetic evaluation of Ethiopian Boran cattle and their crosses with Holstein Friesian in central Ethiopia: reproductive traits