Phynotypic Characterization and Production System of Bonga Breed
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Sky Journal of Agricultural Research Vol. 6(4), pp. 062 - 072, July, 2017 Available online http://www.skyjournals.org/SJAR ISSN 2315-8751 ©2017 Sky Journals Full Length Research Paper Phenotypic characterization and production system of Bonga cattle in Its production environment of Kaffa Zone, Southwest Ethiopia Ebadu Areb, Tegbaru G. Silase, Dawit H. Giorgis, Chernet Reti, Bereket Zeleke and Metsafe Mamiru Southern Agricultural Research Institute, Bonga Agricultural Research Center, Ethiopia. Accepted 18 April, 2017 The study was conducted at Southern Nation Nationalities and Peoples Regional state, Kaffa administrative Zone of Chena and Gesha woredas on phenotypic characterization and its production system of Bonga cattle. Discussions with key informants, field study on morphological characteristics, survey with structured questionnaires, linear body measurements and secondary data were sources of data. Totally 138 households were selected to interview by using structured questionnaires and Morphological measurements were collected from 372 female and 76 male totally 448 mature cattle used randomly. The production system in the study area was mixed crop-livestock production system. Bonga bull reach for drought power was at the age of 3.53 ± 0.66 year. Analyzed data showed that the average age at first mating for male was 3.55 ± 0.07 and for female 3.94 ± 0.09. The overall mean age at first calving (AFC) of Bonga breeding female was 4.96 ± 0.09 years. The average reproductive lifespan of Bonga breeding male and female was 4.51± 0.16 and 16.05 ± 0.42 years respectively. Large body size was the first ranked trait for both male and female to select breeding male and female. The overall mean and standard error of linear measurements of the breed in cm was 111.25 ± 0.44, 101.24 ± 0.29, 136.09 ± 0.51, 16.54 ± 0.09, 21.66 ± 0.33, 38.31 ±v0.12 and 28.93 ± 0.12 for Body length, Height at wither, Chest girth, Ear length, Horn length, Muzzle circumference and Hock circumference respectively. Key words: Phenotypic, characterization, Bonga cattle, breed, description, measurement and Kaffa. INTRODUCTION In Ethiopia, there are 32 recognized indigenous cattle times of scarcity, provide collateral for local informal breeds. New breeds are incorporating in to database in credit and serve other socio-cultural functions in Ethiopia recent years. Five cattle breeds currently recorded for (Ulfina et al, 2005). Some uses for cattle breeds are: SNNPR (Southern Nation Nationality People Region) are Gurage for draft power and milk production even in the Gofa, Gurage, Hammer, Mursi and Sheko (DAGRIS, tsetse infested area and Horro for milk and meat 2007). production and for draft power purposes (Rege and Among livestock species, cattle have significant Tawah, 1999). Sheko for meat and work even contributions to the livelihood of the farmers. They serve endangered by interbred with Zebu cattle and Abigar for as a source of draught power for the rural farming milk and meat and different types of work (DAGRIS, population, supply farm families with milk, meat, manure, 2007). serve as source of cash income and play significant role However, there is little attention given for well- in the social and cultural values of the society. Cattle developed decision making and policy intervention on contribute nearly all the draught power for agricultural exploratory and especially for advanced cattle production at smallholder level in Ethiopia (Melaku, characterization approach. Domesticated livestock is as 2011). Cattle are also used to generate critical cash in source of food. Its increasing demand requires the conservation of diversity among indigenous livestock genetic reserves that are capable to readily respond various environments for next human generations and *Corresponding author. E-mail: [email protected]. Tel.: handle unpredictable future. 047 3311441/42. Fax: 047 3310582. Areb et al. 63 Study area (Kaffa Zone) A, Ethiopia, B. SNNPR (South Nation Nationalities and Peoples Region) Figure 1. Map of study area. Maintaining genetic diversity is an insurance against information on the origin, population statistics, ecology, future adverse conditions (Dackson, 2008). Recently, production system, utilization, physical and adaptive loss of genetic diversity within indigenous livestock features, production characteristics, preferable traits and breeds has been a major concern. It is estimated that categorize the breed as conserved, endangered or 35% of mammalian breeds are at risk of extinction, and extinct. that approximately two breeds of livestock lost each week (FAO, 2000). Management and conservation of animal genetic MATERIALS AND METHODS resources require assessment of genetic diversity. Because it is difficult to design appropriate breeding Descriptive of study area programs for breeds that have not been adequately characterized either phenotypic/ or genetically. The study was conducted at Southern Nations Exploratory or primary characterization approach is prior Nationalities and Peoples Regional state, Kaffa important confirmatory or advanced characterization administrative Zone of Chena and Gesha woreda. It is approach in breed identification and classification in ways situated in the South Western part of Ethiopia (7º 34´N that farming communities can relate to (FAO, 2012). latitude and 37º 6´E Longitude). It is 467 km far from Morphological descriptions have been used to evaluate Addis Ababa to south west part of Ethiopia (Figure 1). breeding goals, to assess type and function and to The area has one major rainy season that extends from estimate the animals’ value as potential breeding stock May to October and the dry season lasts from October to (Mwacharo et al., 2006). In order to ensure proper April (Edea, 2008). The annual precipitation of the region conservation and utilization of indigenous breeds, it is is about 2300mm with mean maximum and minimum necessary to evaluate phenotypic and genetic variation temperatures of about 24ºC and 12ºC, respectively that exists within and among breeds. A large proportion (Denboba, 2005). of indigenous livestock populations in the developing Specifically description of Chena woreda was altitude countries have yet to be characterized or evaluated at range 1851 – 1900 masl (mean above sea level) and the phenotypic and genetic levels (Hanotte and Jianlin, area of forest coverage was 1447 hectare. Mean annual 2005). Although Bonga cattle population plays a major rain fall was 1190 mm and mean annual temperature was role in the sustainability of livelihoods for its owners, there 21.5 ºC. Average land size of Chena woreda at is no any published information concerning the household level was 1.8 hectare and main type of soil characteristics of this breed. The lack of information on were clay, loam and sandy (CARDO, 2016). the physical and molecular characteristics hinders the Also description of Gesha woreda was altitude range development programs for improving the breed. As a 1900 – 2600 masl (mean above sea level) and average result the studies was mainly focused on to find out basic annual rain fall range was 1200 – 1700 mm and 64 Sky. J. Agric. Res (A) Bonga cow (B) Bonga Bull Figure 2. Mature Bonga cattle. maximum and minimum temperature was 230C and 180C chest/heart girth, height at wither, horn length, ear length, respectively. Forest coverage of the area was 9347.435 muzzle circumference and hock circumference. ha and soil type is loam (GARDO, 2016). Index was calculated to provide ranking for trait preference and criteria to select breeding males and females. Index was calculated as Index = sum of (7x Data collection and analysis number of households ranked first + 6x number of households ranked second + 5x number of households Before deciding on the survey areas, discussions were ranked third +4x number of households ranked fourth + 3 held with zonal experts of the rural and agricultural x number of house hold ranked fifth +2 x number of development office and staff members about the house hold ranked sixth + 1x number of house hold objectives of the study, to know the current production ranked seventh ) given for each variable source divided system and area dominated by pure Bonga cattle breed by sum of (7x number of households ranked first + 6x with in Kaffa zone. After selection of districts also further number of households ranked second + 5x number of discussion was held with each woreda/districts rural and households ranked third +4x number of households agricultural development office to select kebele or PAs. ranked fourth +3 x number of house hold ranked fifth + 2x As a result, Abeta and Didifa kebele from Gesha woreda number of house hold ranked sixth + 1x number of house and Dahira, Agaro and Kulish kebele from Chena woreda hold ranked seventh) for all traits of trait preference. were selected based on cattle production system, cattle population size, physical appearance of cattle and accessibility of the area to do it. RESULT AND DISCUSSION Totally 138 households were selected to interview by using structured questionnaires about socio - economic Origin, distribution and production system of Bonga data, reproduction and production characteristic, feed cattle and feeding system, traits preference, constraint for production, housing and husbandry practice. According to elder people of the study area Bonga cattle Morphological measurements were collected from 372 found at northern, western and northwest part of Kaffa female and 76 male totally 448 mature cattle used zone was originated