Download or read book On Farm Phenotypic Characterization of Indigenous Chicken written by Fereja Getachew and published by LAP Lambert Academic Publishing. This book was released on 2015-11-30 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the important roles of local chickens, rearing them can be considered as a side line agricultural activity. However, the indigenous chicken populations have been neglected by conservation and development programs. Instead high input demanding exotic commercial chicken breeds are introduced and supported by the government to increase poultry productivity.The most dominant chicken types reared in Ethiopia are local ecotypes, which show a large variation in body conformation, plumage color, comb type and productivity.

Download or read book Phenotypic Characterization of indigenous Chicken Ecotypes in Northwollo Amhara Regional State Ethiopia written by Addisu Hailu and published by GRIN Verlag. This book was released on 2013-01-09 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master's Thesis from the year 2012 in the subject Agrarian Studies, Bahir Dar University, course: animal genetics and breeding, language: English, abstract: ABSTRACT Phenotypic characterization of indigenous chicken ecotypes was conducted in North Wollo from January 2011 to May 2012 with the objectives of characterizing indigenous chicken and their production system. Simultaneously, identification of development intervention for improved utilization of chicken genetic resources was also identified. In the first part of data collection, one focused group discussion per agro-ecological zones was held. Then, administration of well-structured questionnaire and morphometric measurement were employed. Measured quantitative traits of chicken among the three altitudes were analyzed by linear model of SAS 2002 for male and female chickens separately. Subsequently, mean value of each traits were compared using Tukey’s mean comparison method. Multivariate analysis of principal component analysis, canonical discriminant, step-wise discriminant and clustering analysis was performed by SPSS 19.0 for male and female chicken ecotype separately. Nechi (17.6%), Tikur (12.6%) and Key (10.8%) plumage colour were found dominantly all over the study area. Findings of the focus group discussion revealed that there were morphologically differences among chickens of high altitude, mid altitude and low altitude study areas. Similarly, findings from the semi-structured questioner revealed that indigenous chicken ecotypes are dual-purpose. The critical constraints of scavenging chicken production were disease (60.13%) predators (20.59%) and feed shortage (19.28%). Number of egg lay/clutch (37.91%) and plumage colour (37.58%) were the major preferred trait by the farmers in the study area. For qualitative and quantitative study, 715 sample chickens were recorded by category of agro-ecology. Linear measurements on six traits were taken from 210 mature male and 305 mature female chickens. The overall mean body weight of indigenous male and female chickens was 1500.97gm and 1253.36gm respectively. The overall age at sexual maturity for male and female was 24.25 ± 0.04 and 23.84 ± 0.05 weeks respectively. There was highly significant difference (p

Download or read book Phenotypic Characterization and Assessment of Management Practices of Indigenous Chicken in Jimma Zone written by Taju Siraj and published by Grin Publishing. This book was released on 2017-12-07 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master's Thesis from the year 2017 in the subject Agrarian Studies, language: English, abstract: The study was conducted in Jimma zone of three Agro-ecology in six-selected farmer's kebele starting from March to June 2017 with the aim to phenotypic ally characterize selected indigenous chicken, identify poultry management and breeding practices in three agro-ecologies of Jimma Zone. A survey was carried out on 180 randomly selected respondent as well as 555 heads of native chickens, (445 females and 105 males) for qualitative and quantitative trait measurements. In Ethiopia, the agricultural sector is a corner stone of the economic and social life of the people. The livestock sector in Ethiopia contributes 12% and 33% of the total and agricultural Gross Domestic Product (GDP), respectively, and provides livelihood for 65% of the population. The sector also accounts for 12-15% of the total export earnings. These livestock genetic resources are important or vital to development of the economic, social and environmental of the one country. The diverse agro-ecology and agronomic practice prevailing in the country together with the huge population of livestock in general and poultry in particular, could be a promising attribute to boost up the sector and increase its contribution to the total agricultural output as well as to improve the living standards of the poor livestock keepers. Poultry production, as one segment of livestock production, has a peculiar privilege to contribute to the sector. This is mainly due to their small size and fast reproduction compared to most other livestock and its well fitness with the concept of small-scale agricultural development. Moreover, it goes eco-friendly and does not compete for scarce land rest.The majority of indigenous chickens in the tropics are maintained under village chicken production systems. These production systems are typically characterized by low input and low output systems, mainly in terms of egg and meat p

Download or read book Phenotypic Characterization of Animal Genetic Resources written by and published by Food & Agriculture Organization of the UN (FAO). This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: These guidelines are part of a series of publications produced by FAO to support countries in the implementation of the Global Plan of Action for Animal Genetic Resources.

Download or read book Phenotypic Characterization Genetics and Genomics of Livestock in Low Input Systems written by Mohammed Ali Al Abri and published by Frontiers Media SA. This book was released on 2022-10-19 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterisation of Local Chicken in Low Input Low Output Production Systems written by Timothy Nthaziyake Pearson Gondwe and published by Cuvillier Verlag. This book was released on 2005 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetic Characterization of Tanzanian Indigenous Chickens in Relation to the Worldwide Spectrum of Chicken Diversity written by Charles Moses Lyimo and published by Cuvillier Verlag. This book was released on 2015-03-31 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Poultry production is the most dynamic sector that signified the rapid growth of all meat sectors during the last decades (FAO, 2010). The global growth of poultry industry reflects an increase of world meat demand and consumption (de Haan et al., 2001; Delego, 2003; Delgado et al., 2008; Narrod et al., 2008; Trostle and Seeley, 2013; FAO 2014). Among the poultry species, chickens are the humankind’s most common and widespread birds. Chicken meat represents 88% of poultry meat output (Global Poultry Trends, 2014). Although the demand of chicken products has increased tremendously due to not only the fast growth of world population but also the increase of per capita global consumption of meat, nearly one third of chicken breeds are reported to be at risk of extinction (Pym, 2010). This is alarming and thereby calls for an assessment of the existing genetic resources, because many of the varieties which are at risk may have traits that can be valuable in future environmental challenges and marketing demands. Genetic variability in chickens is the best insurance for the adaptation and sustainable production for the future unpredictable needs (Simianer and Meyer, 2003). One of the important elements concerning sustainable use of animal genetic resources is to ensure that locally adapted populations remain a functional part of production systems.

Download or read book Poultry Genetics Breeding and Biotechnology written by W. M. Muir and published by CABI. This book was released on 2003-06-18 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive research book represents the first complete integration of current knowledge in this area. It addresses issues associated with poultry breeding particularly by examining quantitative and molecular genetics and the uses of transgenic technology. A special section covers the important area of disease resistance and transmission.

Download or read book Village Chicken Production Systems in Rural Africa written by Aichi J. Kitalyi and published by Food & Agriculture Org.. This book was released on 1998 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The poultry production systems of Africa are mainly based on the scavenging indigenous chickens found in virtually all villages and households in rural Africa. These systems are characterized by low output per bird. Nevertheless, over 70 percent of the poultry products and 20 percent of animal protein intake in most African countries come from this sector. Therefore, increased rural poultry production would result in a positive impact on household food security both in increased dietary intake and in income generation. ... This study coincided with the World Food Summit, held at FAO, Rome, from 13 to 17 November 1996, where delegations committed their governments and civil society to a global attack on food insecurity and poverty. Poultry, like other short-cycle animal stock, is viewed by the FAO Special Programme for Food Security (SPFS) as a crucial element in the struggle for sustained food production and poverty alleviation. The guidelines provided in this study are particularly pertinent to those countries participating in the SPFS where village chicken production will have a substantial impact on increased household food security and gender equity."--Foreword.

Download or read book Animal production and animal science worldwide written by A. Rosati and published by BRILL. This book was released on 2023-08-28 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In this third volume of the successful Book of the Year series, produced by the World Association for Animal Production (WAAP) specialists in animal science inform you about the developments in the past year in livestock systems worldwide. The best authors available are chosen to express their competence and expertise on all the aspects considered relevant in each specific field of animal science. This volume, like its predecessors, is based on four sections. The first describes livestock industry and relative research developments in the geographical continents. The second includes efforts to describe the development of research in every discipline within the large ambit of animal science. The third section contains interesting articles on 'free subjects', of large interest for readers such as 'Science and Policy in Risk Assessment of Transgenic Animals', 'The impact of nano-scale technologies in animal management', 'New developments in amino acid research', etc. The last section presents detailed statistics of high relevance in animal industry. This book is generally recognized as one of the very few practical resources of comprehensive statistical information related to animal industry. The Book of the Year series is intended for libraries that wish to offer their readers high-quality, updated information. At the same time, this series is an indispensable resource for scientists, policy makers and scientific writers who wish to enhance their proficiency in their field. It provides a very current, complete picture of the animal industry and livestock science worldwide."

Download or read book Diatoms written by F. E. Round and published by Cambridge University Press. This book was released on 2007-12-04 with total page 1208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a wide-ranging introduction to the diatoms together with an illustrated description of over 250 genera. Diatoms are important as perhaps the commonest group of autotrophic plants on earth and are abundant in all waters and on soils and moist surfaces. The introduction describes the diatom cell in detail, the structure of the wall (often extremely beautiful in design), the cell contents and aspects of life cycle and cell division. The generic atlas section is the first account of diatom systematics since 1928 (Karsten in Engler and Prantl: Die Nauturlichen Pflanzenfamilien) and each generic description is accompanied by scanning electron micrographs to show the characteristic structure. Most of the latter have been prepared specially for this work from the authors' own collections. The Diatoms will be the standard reference work on the group for years to come and is an essential reference volume.

Download or read book Animal production and animal science worldwide written by A. Rosati and published by BRILL. This book was released on 2023-08-28 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: After the experience of the first volume, The World Association for Animal Production (WAAP) continues the publication of the Book of the Year series for the benefit of animal scientists and policy makers in the field of livestock systems. The WAAP asked the best known and significant animal scientists in the world to contribute to the preparation of this book. Following the success of the first volume of the series, the WAAP Book of the Year 2003, many authors from the six continents are contributing to this 2nd volume. The importance of this publication is to have already established a worldwide reference for the animal science and production sectors. There are the usual four sections that raised much interest in the previous volume of the series. The first section has six articles, describing the changing conditions of livestock systems in each of the six continents. The second section has more than twenty papers, describing the development of the many sectors in which the animal science field has been divided. The third section, dealing with contemporary issues, is declared by our readers to be the most interesting. It allows participating authors to describe current and significant issues important in these last years for the animal science and production sectors. The statistics produced in the previous volume are updated and enhanced with new figures in this book to form the fourth section. The papers included in this book speak clearly of the development in the last twelve months in the livestock systems worldwide. Major space is also devoted to the list of references from where every author can start to deepen his knowledge. This book is essential for libraries that want their readers to be easily updated. Also scientists, policy makers and scientific writers, who need, to enhance their competence, to have the most practical way of knowing what is going on in the world in the field of livestock science and production will find this book of great value.

Download or read book Pediatric Allergy Asthma and Immunology written by Arnaldo Cantani and published by Springer Science & Business Media. This book was released on 2008-01-23 with total page 1634 pages. Available in PDF, EPUB and Kindle. Book excerpt: Easy to understand and easy to use, this essential book reflects the rapid progress in one of the most intriguing fields of medicine. It offers state-of-the-art information on basic immunology, fetal-neonatal immunology, and many more fascinating areas.

Download or read book Phenotypic and Genetic Characterization of Local Chicken Ecotypes in Ethiopia written by Tadelle Dessie Alemayhu and published by . This book was released on 2003 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Summary of Reported Estimates of Heritabilities and of Genetic and Phenotypic Correlations for Traits of Chickens written by Terry B. Kinney and published by . This book was released on 1969 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Underutilized and Underexploited Horticultural Crops Vol 03 written by K.V. Peter and published by New India Publishing. This book was released on 2008-06-02 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Underutilized and Underexploited Horticultural Crops are reviewed in several science journals for its uniqueness and richness in content and botanical information. Enlarging the food base and food basket along with validated information on plants for industry, dyes, timber, energy and medicine is the core theme of the series. The third volume has 25 chapters written by 46 scientists from UK, Mexico, Spain, India, USA, Turkey and Nigeria. The crops covered are atuna, African de bolita, capers and caper plants, kair, natural dye plants, plants used for dye sources, underutilized wild edible fruits of Kerala, bael, carambola, tropical plum, citrus, fig, guava, star gooseberry, hog-plum, underutilized leaf vegetables of sub-Himalayan terai region, underutilized vegetables of Tripura, agathi and chekkurmanis, celosia, colocasia, edible begonias, kangkong, underutilized palms, Atuna and African de bolita are new crops to Indian readeNatural dyes are attaining significant commercial importance in view of the negative effects of synthetic dyes which are allergic and in a few cases carcinogenic. Underutilized fruits like bael, carambola, tropical plum, fig, star gooseberry and hog-plum are receiving attention in view of their wider adaptability and suitability to grow under conditions of stress. Underexploited leaf vegetables like agathi, chekkurmanis, celosia, edible begonias and kangkong have been given prominence. Prof.Ghillean T Prance, FRS has contributed the chapter on Atuna. The Editor is Dr K V Peter Former Vice-Chancellor, Kerala Agricultural University.

Download or read book Feed efficiency in swine written by John F. Patience and published by Springer Science & Business Media. This book was released on 2012-10-15 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'Feed efficiency in swine' has been prepared as a comprehensive treatise on the current state of our understanding of this topic which is so important to the pork industry. Each chapter is written by international authorities who understand both the science and application of their topic area. The book provides detailed insight into the many factors affecting feed efficiency, ranging from diet processing to herd health, from nutrition to physiology and from day-to-day barn management to the adoption of advanced technologies. The authors explain such practical aspects as the challenge of interpreting feed efficiency information obtained on farm or the role of liquid feeding. The authors also delve into more scientific topics such as amino acid or energy metabolism or animal physiology. This book is written for people who have a technical interest in pork production, including nutritionists, geneticists, farm management specialists, veterinarians, other academics and, of course, pork producers.