Pastoral farming system and its temporal shift: A case of Borana zone, Oromia National Regional State, Ethiopia

The study was conducted in Borana zone, which is located at about 570 km from Addis Ababa with the objective of understanding the farming system of Borana pastoral area. The primary data was collected using survey questionnaires from 160 households selected using multistage sampling design. The study confirmed that the farming system in Borana pastoral area has been increasingly diluted, unlike the earlier decades where livestock were used to stand as the backbone of their economy. The inference from the sample household indicated larger portion of their livelihood is crop-livestock integration dependent, unlike the conventional account. Even though the livelihood diversification is possible to reduce the risk agriculture, in the study area the diversification into crop farming could intensify further devastation of nature by diverting attention to other livelihood option resource if care is not in place. Practically, owned to decline in livestock productivity, it enforced the pastoralists to enhance the trade-off between crops-livestock production or its integration. The survey result also displayed that about 85% of the respondent has been producing at least one crop besides the livestock production. This induces a critical question on the existents of the pastoralists if sustainable livelihood of the pastoralism is not in concern. However, owned to the critical importance of the pastoral system, interventions to enhance the pastoral livelihood need urgent measures. Furthermore, this study recommends for further deep analysis on optimization of the livelihood diversification in pastoral area for enhancing sustainable livelihood.


INTRODUCTION
Livestock has been the main backbone of the pastoral economy from a long history. However, climate variability is the greatest recurrent threat to the livestock production (Angassa and Oba, 2007). It has been naturally reducing the livestock asset accumulation of the pastoralists recurrently with an intensified frequency of the event. As a result, Borana pastoralists are much poorer today than they were in decades, as livestock a person has declined from 4.1 to 2.3 TLU and more recently found 1.9 TLU (Bati, 2014). The decline in livestock per person over *Corresponding author. E-mail: dmangistu@gmail.com.
Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License the years is, however, suggests the decline in the pastoral economy.
Later, various livelihood alternatives have been emerged to overcome the risk of climate variability (Coppock, 1994). Acceptance of integrity and complementarily between crop and livestock becomes adapted unlike earlier decades (Tilahun et al., 2017). The anecdotal evidence shows that crop farming was started during the Goba Bule Gada, 1969-1977(Napier and Desta, 2011. However, crop failure is subsequently higher because of rain shortages and climate variability. It implies that the original livelihood system, pastoralism, was mixed with other alternate production system though the capability of the environment needs further analysis. Particularly, most of the pastoralists strained to diversify into agricultural production (Angassa and Oba, 2007). They have been practicing small-scale crop farming to meet the unmet demand of food, even though it is gambling with climate variability. Crop production is characterized by frequent failure because of erratic rainfall beyond its unreliability. Increased cultivation, however, was attributable to declining of livestock of a person as worsened by human population growth (Tache, 2008). Unfortunately, lessening smaller herds from the poor pastoralists impels the permanent shift into farming.
However, the livelihood diversification into different alternatives remains to the conventional practices of the pastoralists. These efforts of the community are owned by the self-defense against chronic food insecurity regardless of its environmental outcome. Under current trends, the chronological shift from pastoralism to agropastoralism and then to the dryland farming and ranching is not too far, though the traditional livelihood is deeply rooted. However, it is very critical to understand the trade-off and trends of alternative livelihood systems in pastoral area. Thus, this study was undertaken to understand the shift of farming system in Borana pastoral area.

METHODOLOGY
Borana zone is located at 570 km from Addis Ababa to the Southern tip of Ethiopia. It is classified as 10% highland, 20% temperate and 70% lowland with the average temperature ranges between 18 and 280°C and altitude lying between 500 and 2500 masl (Ibrahim, 2005).
In this study, the primary data collected from sample households using a questionnaire after survey questionnaires were pretested before starting the data collection. To capture a better socioeconomic context of the concern, qualitative data collection, such as focus group discussion (FGD) and key informant interview were conducted. Secondary data were collected from the respective office of zone and districts to enrich the data collected from the respondents. Descriptive statistics such as mean, percentage, frequency and were used to analyze the socioeconomic characteristics of the sample households.
Chronologically, we have employed multistage sampling methods. On the first stage, Borana zone was stratified into three homogenous groups based on its livelihood, namely pastoral, agropastoral and agriculture where 1-2 sample districts were randomly selected from each strata. On the second stage, these selected districts were stratified into pastoral, agro-pastoral and agriculture where two kebeles were randomly selected from each strata. Finally, sample households were randomly selected from each selected Kebele. So, Yabello, Teltelle, Miyo and Dhas districts were selected, whereas two kebeles have been selected from the selected words. Finally, 123 households were randomly drawn-out at 95% confidence interval with 0.5 degrees of variability at 9% precision level (Yamane, 1967), plus 17 reserved with 140 households in total. The collected data was analyzed using SPSS software produced tabulated data and descriptive statistics.

Socioeconomic characteristics
The proportion of male and female in the household is on average framed a one-to-one (1:1) ratio with the mean of six family size on average. The average male and female frame is proportional with a minimum of three for both and a maximum of 11 and 8 for male and female, respectively. The age of sample households was a mean of 42 years with a maximum of 96. Most of the sample households were male-headed households, which form about 83% of the sample households, and only 17% of the sample households were female-headed (Table 1).
From all sample households, only about 28% can enable read and write in which some of the sample households have access through youth education provided by the government during the night and weekend (Table 1). From the sample households with the capacity to read and write, the respondents were attending a maximum of grade eight and about 1% of the sample households accessed the capacity to read and write through the informal education, zero education. From the chi-square output, there is a significant difference between the literate and illiterate on which the livelihood they are inclined to. Though there is no significant difference among the followers of religion on the choices of the livelihood, male-headed households, and illiterate households are more likely to diversify their livelihood alternative. The mark is that female household is hardly reluctant to shift their livelihood because of physical inability and emotional confidence (risk-taking). On the other hand, though education is an important tool for choosing a better livelihood alternative, the literacy services given to the elderly level are less likely focused on livelihood development.
Indigenous religion followers called "Waaqeffataa" followed by Evangelical and Muslim dominate in the area. The Muslim and Evangelical religions are the recently expanded religion, unlike the original "Waaqeffataa" religion in the zone. These two religions are expanding at the expense of their indigenous religion, "Waaqeffataa".

The essence of pastoral farming system
A farming system is a population of individual farm Pearson  2 is significant at ***1%, **5% and *10% significance level, respectively. Waaqeffataa is the followers of Oromo indigenous religion, Waqefannaa associated with the Gada system and followers of One God as the Oromo word [wa:k'a] (God). Source: Own Survey.
systems that have broadly similar resource basis, enterprise patterns, household livelihoods, and constraints, and for which similar development tactics and interventions would be suitable, whereas the household, its resources, and the resource flows and interactions at this individual farm level (Dixon et al., 2001). In the study area, though there are various classifications of the farming system, lack of discrete boundary of classification makes it difficult to acquire data for further discrete analysis. For purposes of this study, the conventional livelihood practices-based-agro-ecology was adapted to characterize the pastoral farming system in Borana zone. Accordingly, the Borana zone could be classified as pastoralists, agro-pastoralists, and dryland farming system based on the traditional livelihood basis. Though it is difficult to assign an isolated definition of household within each farming system, scholars have assigned the subjective definition of each farming system. According to Rass (2006), "Pastoralists are livestock keepers living in the area which receives less than 400 mm of rainfall a year with a growing period 0-75 days, where cropping is not practiced and driving more than 50% of agriculture from livestock rearing through opportunistic tracking on communal land. Similarly, agropastoral are livestock keeper earns more than 25% but less than 50% of agricultural income (that is it includes the value of own production consumed within the households) from livestock keeping on communal land in an area with an annual rainfall between 400 and 600 mm and growing periods of 75 to 90 days" (Rass, 2006).
Though there are different definitions, the critical difference is that while the income source of the pastoralists is dominated by income from livestock, the income of the agro-pastoralists is dominated by income from the crop. However, the livestock production of both pastoralists and agro-pastoralists follows similar fashions.

Shift in pastoral livelihood system
In the past 20 years, the shift from pastoralism to agropastoralism livelihood system is raised (Wassie and Fekadu, 2015). Before 20 years, the number of households practicing crop production is minor compared with 10 years after. Even before 10 years, the involvements of crop production have been low. However, because of various reasons, principally droughts, expansion of crop farming becomes a superfluous livelihood alternative. The low productivity of livestock (for example Milk) enforces the households to look for other income sources (Hurst et al., 2012).
The Chi-square outcome also showed the shift from pastoral to agro-pastoral livelihood is significant at 95% CI. Livestock only based production decreasing over 20 years because of the involvement in farming become increasing (Figure 1). Though crop production has started before 20 years, most recently the trade-off between crop production and livestock production is now raised (Wassie and Fekadu, 2015).
The result hints that the shift of pastoral livelihood from the orthodox to the other extraneous livelihood alternative at the expense of the original livelihood becomes nonstoppable. Another study also confirmed that the shift from pure pastoralism to subsistence agriculture is the major concern in the Borana pastoral area (Boku and Sjaastad, 2008). This shift was dominantly because of recurrent natural and human-made calamities that limit the conventional pastoralism (Wassie and Fekadu, 2015). Drought, erratic rainfall, land degradation, and bush encroachments domineer the top challenges in the pastoral area coupled with expansion of farming land; deforestation, livestock population; unstructured settlement and farmland expansion add the limiting impact on a livestock production (Negasa et al., 2014). This proves that the expansion of dryland farming at the cost of the rangeland hint the declining of livestock dominated production.

Raising
On the other hand, Borana pastoralists are the original sources of Boran cattle, which laid an important foundation for improved livestock breed in the world. The trade-off from livestock to crop production bears an offensive load on the livelihood of the society.
However, analytical gaps in the future of the natural potential are an inquisitive point that needs further effort beyond this study. Nonetheless, the production of different crops was given due attention regardless of their awareness and access to seed and seedling. Irrespective of the area of production, seed sources, seed availability and producers' experience, pastoralists have been practicing at least staple crops such as maize and haricot bean. Nowadays, demands for crop production had already been fueled to fill unmated demand for food, even in the area suggested purely for pastoral households. The past study also confirmed that crop cultivation is firmly expanding in the rangelands and tenure is moving towards the de facto individualization (Boku and Sjaastad, 2008) Though crop production is a relative infant in pastoral concerns, nowadays the urge for crop production knocks the conscience of every household regardless of the production skill and knowledge (Liao, 2014). From the survey result, about 85, 65 and 30% of the respondents confirm that they were producing maize, haricot bean and Teff, respectively (Table 2). Similarly, these pastoralists earmarked about 85% of their cultivated land for maize production followed by haricot bean and Teff. Another study also shows that maize production leads the crop production in the study area followed by Teff (Tilahun et al., 2017).
However, producers are hardly consuming Teff beyond production. It is considered as commercial, though its productivity is low. Nevertheless, producers' postharvest management challenges their income because of their low crop storage habit, Teff. Most commonly, the producers are tracked into the market immediately after harvest though high supply impels a low price. On the other hand, cattle dominate the inhabitants of livestock in Borana zone besides social heritage. The household survey also confirms that cattle are the top populous livestock followed by goat, sheep, and camel in rank where female livestock dominated the part of livestock sizes.
On average, households owned about 11 animals (TLU) where cattle cover 90% of the part. Though the livestock holding was small, still livestock production outweighs the livelihood of the pastoralists. Even though average camel holding seems high (only less than 10% of the respondents), more than 80% of respondents own cattle and small ruminant (Table 3). Figuratively, the inhabitants of the small ruminants outweigh the inhabitants of livestock, though the population of the cattle outweigh in TLU.

CONCLUSION AND RECOMMENDATION
Climate variability is the greatest recurrent threat to the livestock production that has been naturally destocking the livestock asset at a cost of sustainable livelihood. Drought, erratic rainfall, land degradation, bush encroachments, livestock population, unstructured settlement, and farmland expansion have a limiting effect on a livestock production. However, the declining livestock per individual reflects eroding of the pastoral economy. This favors for the emergence of various livelihood choices to overcome the problems arising from impact of the climate change. Particularly, crop cultivation as a means of partial compensation for long-term trends of livestock restocking shares the lion option in the study area. However, the analytical gaps in the future of the natural potential are an important point that needs further effort beyond this study. Besides crop production, the population of small ruminants outweighs the population of livestock, though pastoralists value their cattle more in history. Still, the same drought is recurrently fighting the civil society, which has no suitable defensive tools to fight against it except the defeated traditional coping tactics. On the contrary, the human population and the environmental risk are still growing beyond the capacity of local adaptation strategies of livelihood diversification. As a result, the situation gradually multiplies the poor and poverty against the strategies of the country to lessen poverty in Ethiopia.
On the other hand, diversification hardly considers the problem of natural resources because of its planning. Similarly, though farm diversification is an important strategy; this study extends further investigation on enterprise optimization to improve the income of producers aligned with the applicable land use and land classification.