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Autor: Das, S.M.

Blended goats are a 3-way cross of meat goats, between Boer x Kamorai x Small East African goats; they constitute less than 5% or the 6 million goat population in Tanzania. Goats in the project were raised mainly on pastures with similar supplementation or concentrates at Kongwa and Malya station...


Das, S.M.[Reproduction, growth and milk yield of Blended goats in Tanzania]Reproduction, growth and milk yield of Blended goats in Tanzania
Autor: Das, S.M.

Data on Black Head Persian (BHP) sheep, collected at Livestock Research Centres, Malya and West-Kilimanjaro, Tanzania for the period 1964-1988, were analysed. Overall age at first lambing, lambing interval, twinning rate, litter size and annual reproductive rate averaged 784.2± 6.16, 350.9± 3.54 ...


Das, S.M.[Evaluation of Black Head Persian sheep at Malya and West Kilimanjaro Research Centres, Tanzania]Evaluation of Black Head Persian sheep at Malya and West Kilimanjaro Research Centres, Tanzania
Autor: Odubote, I.K.

A total of 587 kidding records of the West African Dwarf (WAD) goats over a period of 10 years (1982-91) were used for this study. The mean kidding interval and litter size at birth were 275.68±6.08 days and 1.79±0.05 kids, respectively. Effect of parity, season and year of birth were significant...


Odubote, I.K.[Genetic analysis of the reproductive performance of West African Dwarf goats in the humid tropics]Genetic analysis of the reproductive performance of West African Dwarf goats in the humid tropics

In this study the reproductive performance of indigenous Ethiopian cows and their F1 crosses was evaluated and factors affecting reproductive performance were assessed, based on crossbreeding data collected from Asella Livestock Farm, Ethiopia. Age at first calving, number of services per concept...


Negussie, E.Braennaeng, E.Banjaw, K.Rottmann, O.J.[Reproductive performance of dairy cattle at Asella livestock farm, Arsi, Ethiopia. 1: indigenous cows versus their F1 crosses]Reproductive performance of dairy cattle at Asella livestock farm, Arsi, Ethiopia. 1: indigenous cows versus their F1 crosses

An on-farm study was conducted over a 12-year period (1979 through 1990) at four locations in the subhumid zone of Nigeria to estimate levels of performance of Bunaji cattle and to examine factors affecting productivity in these production systems. Average weight at birth, at 9 months and at 12 m...


Rege, J.E.O.Kaufmann, Ralph R. vonMwenya, W.N.M.Otchere, E.O.Mani, R.I.[On-farm performance of Bunaji (White Fulani) cattle. 2. Growth, reproductive performance, milk offtake and mortality]On-farm performance of Bunaji (White Fulani) cattle. 2. Growth, reproductive performance, milk offtake and mortality

A study was conducted to estimate heritabilities of, and genetic correlations among, body weight (WT) and testicular measurements - scrotal circumference (SC), testicular diameter (TD), testicular length (TL) and epididymal diameter (ED - in ram lambs between 6, 9 and 12 months old, and relations...


Toe, F.Rege, J.E.O.Mukasa-Mugerwa, E.Tembely, S.Anindo, D.O.Baker, R.L.Lahlou-Kassi, A.[Reproductive characteristics of Ethiopian highland sheeI. Genetic parameters of testicular measurements in ram lambs and relationship with age at puberty in ewe lambs]Reproductive characteristics of Ethiopian highland sheeI. Genetic parameters of testicular measurements in ram lambs and relationship with age at puberty in ewe lambs

A study was conducted to investigate the effect of season on, and to estimate heritabilities of, and genetic correlations among, semen and spermatozoa characteristics and the relationship of these characteristics with measures of testicular or scrotal size in 6-, 9- and 12-month old ram lambs of ...


Rege, J.E.O.Toe, F.Mukasa-Mugerwa, E.Tembely, S.Anindo, D.O.Baker, R.L.Lahlou-Kassi, A.[Reproductive characteristics of Ethiopian highland sheep. II. Genetic parameters of semen characteristics and their relationships with testicular measurements in ram lambs]Reproductive characteristics of Ethiopian highland sheep. II. Genetic parameters of semen characteristics and their relationships with testicular measurements in ram lambs

Calving date (CD) records of 68896 polled Hereford dams of 120 682 calves were coded within herd-year-season with date 1 being the date the first calf was born. Factors affecting CD and its relationship with production traits were investigated. Early calving was found to be associated with high p...


Rege, J.E.O.Famula, T.R.[Factors affecting calving date and its relationship with production traits of Hereford dams]Factors affecting calving date and its relationship with production traits of Hereford dams

Describes part of a series of studies aimed at characterizing the pre-pubertal reproductive performance of the Malawi Zebu cattle, monitoring 10 Malawi Zebu heifers over a 15-month period starting when the animals attained 15 months of age and ending when they were 30 months old; and 10 multiparo...


Kamwanja, L.A.[Parametres de reproduction des bovins zebu du Malawi]Parametres de reproduction des bovins zebu du Malawi

Thirty-six crossbred cows were used in a 2 X 2 factorial arrangement in a randomized block design to evaluate forages from two cropping systems (1 and 2) and feeding levels (ad libitum, (Level1)) or 80 percent of ad libitum (Level 2) on milk yield, live weight, and reproductive performance. Crops...


Crosse, A.Umunna, N.N.Osuji, P.O.Tegegne, AzageKhalili, H.Tedla, A.[Comparative yield and nutritive value of forages from two cereal-legume based cropping systems. 2. Milk production and reproductive performance of crossbred dairy cows]Comparative yield and nutritive value of forages from two cereal-legume based cropping systems. 2. Milk production and reproductive performance of crossbred dairy cows

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