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Articles by Alayu Kidane
Total Records ( 2 ) for Alayu Kidane
  Alayu Kidane , Surafel Melaku and Aynalem Haile
  The intention of this study was characterizing the goat population of Gumara-Maksegnit watershed area by defining the breeding practices of the goat owners in the area, as well as based on physical appearance traits and body measurements. The study area lies in North Gondar Administrative Zone of Ethiopia. Questionnaire was collected from 71 respondent farmers who raise goats. Beside, quantitative linear measurement traits and body weights were taken from 435 female, 142 male, 27 castrate and a total of 604 goats at age of about 10 months and above. The average goat flock size per household was found to be 8.13. The primary reason of goat owners for keeping goats was found to be generating income. The major selection criteria for breeding does were kid growth, height and mothering ability whereas for breeding bucks, height, coat color and fast growth. Most of the respondents (93 and 98.6%) practice selection of best male and female goats from their flock for breeding. The average (mean±SD) age at sexual maturity in male and female goats obtained were 9.74±2.53 and 7.61±2.62 months, respectively. The average age at first kidding is 13.86±3.31 months. The overall mean kidding interval of goats was 6.35±1.11 months. The overall average litter size of the present study was 1.85±0.36 kids per doe per kidding. The major goat production problems identified were disease, predator and feed shortage in their priority. White coat color (24.2%) is the dominant in a plain pattern followed by red with white color (19.5%) in a patchy or spotted pattern. Least mean square means of body measurements of goats were 33.4±0.5 kg body weight, 74.4±0.5 cm wither height, 62.6±0.4 cm body length, 74.2±0.5 cm heart girth, 22.0±0.4 cm scrotal circumference and 2.9±0.1 body condition score. Male goats were found to have higher body size than females. The growth of the goats can be better explained by quadratic curve (R2 = 72.6%) than linear curve (R2 = 67.3%). The goats attain their maturity at age of eruption of 3 pair of permanent incisors. Heart girth was the most highly correlated trait with live weight followed by body length and thus the prediction equations for does of pooled age group: BW = 0.92 HG-42.8 and BW = 0.67HG+0.29+BL-44.3 while for bucks of pooled age group: BW = 0.97 HG-45.5. Development of health care interventions and practicing cut and carry feeding strategies using available feeds and development of adaptive forage species and conservation methods can be helpful to alleviate goat production constraints. The presence of high variation in live weight and other body measurements of the goats can indicate the possibility of selection as promising intervention option for future improvement. At farmers’ management condition, heart girth of male goats and combination of heart girth with body length of female goats can be used to estimate body weight based on the prediction equations.
  Addisu Hailu , Martina Kyallo , Tilahun Yohannes , Wagaw Sendeku , Addis Getu , Shimelis Dagnachew , Muluken Dejen , Yidnekachew Wolde , Flipos Engdaw , Alayu Kidane , Tadelle Dessie , Getinet Mekuriaw Tarekegn , Dedan Githae and Roger Pelle
  Background and Objective: The indigenous chickens (Gallus gallus domesticus) are widely distributed all part of Ethiopia and remain as the main animal protein source for humans. Even though few marker-based molecular characterizations have been conducted on them, none of them used the LEI0258 microsatellite. Therefore, this research project was initiated to see the polymorphism of the LEI0258 microsatellite marker in the Ethiopian indigenous chickens and its potential to study indigenous chicken ecotypes. Materials and Methods: 2-5 mL of the blood sample was collected from 25-30 chicken per sample site. Then, total genomic DNA was extracted using a Qiagen DNA extraction kit followed by PCR amplification and Sanger sequencing. Results: Thirty-seven forms of LEI0258 were identified and the marker has been found as highly polymorphic with polymorphic information content (PIC) of 0.9288. The marker was employed to analyze the pairwise genetic distance between ecotypes. As a result, the lowest genetic distance was observed between Gema Gemmedaa and Ahun Tegegn ecotypes (0.4950). The highest genetic distance was observed between Sarbo and Gelego ecotypes (0.8324). The nine chicken ecotypes sampled in a different part of the country grouped into three major clusters. The naked neck chicken ecotype was isolated from the others and forms a separate cluster. Conclusion: The majority of LEI0258 microsatellite forms are found in at least in two ecotypes, although there are a few alleles unique to a particular ecotype.
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