Journals

Author:
Kefyalew Alemayehu, Damitie Kebede, Alemash Melese and Sileshi Andualem

Abstract: Ethiopia has 28,163,332 goat populations with 11 phenotypically and 8 in genotypically distinct goat breeds. Even though the country as well as the region has large size of goat population, the productivity per unit of animal is relatively low. Therefore, the objective of this research was to identify the indigenous goat types for designing product specific breeding strategy. The study was conducted in three goat potential districts of different agro-ecology. For the study, ranks and body measurements for economically important traits identification were employed. The results of this study revealed that goats are ranked as the first important livestock species in Ebnat and Gonji kolela districts and the second in Farta district cattle. The results of
selection of goat types based on quantitative traits also shown that average body length (BL) for dairy, dual and meat type goats were 59.65±0.58, 54.87±0.69 and 55.52±0.74cm, respectively. Dairy type goats have significantly higher (p<0.05) average pelvic width (15.05±0.20 cm) than dual (13.09±0.24 cm) and meat (12.70±0.25 cm) type goats. Selection of goat types based on dairy specific traits revealed that average rear udder diameter (RUD) for dairy, dual and meat type female goats were 10.04±0.22, 8.66±0.37 and 8.01±0.30 cm, respectively. Rear udder length (RUL), udder circumference (UCC) and teat length (TTL) in these breeds averaged were  17.14±0.28, 31.39±0.59and 3.71±0.07cm, 14.21±0.48, 26.75±1.01 and 3.41±0.12cm and 13.44±0.38, 24.67±0.81 and 3.01±0.09 cm, respectively. In conclusion, there were significant differences among indigenous dairy type, dual and meat type goats in almost all traits. However, farmers did not use product specific specialized production system and thus, technological intervention is crucial to alleviate the identified constraints and improve product specific
indigenous goat development.
Key words: Agro-ecology Goat types Selection Traits

Wed 27 Apr 2016
Author:
A. Getu1*, K. Alemayehu2and Z.Wuletaw3

Abstract

Rapid exploratory field survey, to identify indigenous chicken ecotypes was conducted in north Gondar zone of Ethiopia. Chicken ecotypes including Necked neck, Gasgie and Gugut from Quara, Alefa and Tache Armacheho districts were identified, respectively. Morphological variations among the three study popula-tions and nine measurable traits were evaluated. General linear model, canonical discriminate and stepwise analyses were applied for assessing variability among the study populations. Necked neck and Gasgie eco-types were heavier and had wider linear traits than the rest, while most of the study traits for the Gugut eco-type were the lowest. The most important variables for discriminating between the three populations were shank length, keel length, wingspan and beak length with canonical discriminant function score of 0.897, 0.752, 0.449 and 0.433, respectively. The greatest distance value was between Gasgie and Necked neck ecotype while the least one was between Gugut and Necked neck. The discriminate analysis therefore classi-fied the three populations to be distinct clusters. The morphological traits studied have proved to be useful in genetic characterization of indigenous chickens and can thus be useful in developing strategies for con-servation of the genetic diversity.

 

Wed 27 Apr 2016
Author:
Kefyalew Alemayehu1* and Tadesse Desalegn1

The destructive nature of Argemone mexicana against field crops and grazing lands as invasive
species and, the antibiotic effect for treating common diseases of dairy cattle causing mastitis were investigated at Farta, Gondar and Bahir Dar zuria districts. Plant materials were extracted and the bacteria were isolated from milk of cows infected by mastitis. Finally, sensitivity tests were conducted using standard laboratory procedures. The results revealed that the mean distribution of Argemone in roadside land use type (18.53±6.2) was higher than that of fallow land (4.25±0.75) and farmland (2.72±0.44). The mean abundance per transect belt in 2013 in Farta district (8.5±8.3) was higher than that of Bahir Dar zuria (7.7±8.0) and Gondar district (5.6±4.4). The antibacterial activity of oil cakes extracted from cooked and raw seeds, and fresh plant juice extracts revealed strong inhibition in bacterial growth. Cakes produced from cooked Argemone seeds shown strong inhibitory effect on Escherichia coli than Staphylococcus aureus, and Streptococcus aglaciatae. As the distribution and abundance of the plant increased, the abundance and distribution of native plant species decreased. However, Argemone plant extracts shown excellent potential in treating diseases of mastitis.

Wed 27 Apr 2016
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