Analysis of the Factors that Influence the Mud Farmer Income in Sorkam Barat Subdistrict,Tapanuli Tengah District

. Buffalo cattle are one of the commodities that function as a source of animal protein for the community, as savings, additional income, as labor and manure can be used as fertilizer while providing a source of profit / income for farmers . The purpose of the study was to determine the income of mud buffalo farmers and the factors that influence income in the West Sorkam District, Tapanuli Tengah District. The study was conducted in May-August 2018 using primary data. The method used in data collection is interviewing respondents with the Census Method and analyzed with Multiple Linear Regression using SPSS 16 application tools. The results showed that the income of mud buffalo farmers in West Sorkam District was influenced simultaneously by the business scale, breeders' age, farmer experience, the number of family and labor dependents with R square valued at 0.986 (98%). The results of the study showed that the business scale and the number of workers gave a significant influence (P <0.05) on the income of mud buffalo farmers. The income of buffalo farmers in West SorkamSubdistrict is diverse, with the smallest income being Rp. 370,000/ year with a scale of 2 cattle and the largest is Rp. 68,805,000/ year with a livestock business scale of 47 tails.


Introduction
The development of the livestock sub-sector is part of agricultural development that aims to form a resilient culture, which is characterized by the ability to prosper farmers and their ability to encourage the growth of the sector as a whole as a whole [1]. In connection with these matters, it is necessary to develop alternative patterns that have economical business scale that are sufficient to contribute to adequate family income. In the future perspective, people's livestock businesses must focus on developing animal agribusiness not only as a side business but have achieved goals in the family economy. In other words, people's livestock business will be the main source of income (at least) and can provide benefits for meeting family needs, such as economic activities and family businesses [2]. Tapanuli Tengah as one of the districts of North Sumatra has a population of 10,494 buffaloes in 2015. The cattle business in KabupatenTapanuli Tengah is spread in various regions with different population levels. Sorkam Barat Subdistrict is one of the areas of cattle population distribution in the Central Tapanuli Regency where the annual population growth of cattle is 408, reaching 1,151 in 2015 [3].

Time and place of research
This research was conducted in May-August 2018. The study was conducted in Sorkam Barat Subdistrict, Tapanuli Tengah District, North Sumatra Province.

Methods and research respondents
The method used in the collection of research data is the Census Method, which is a method of collecting data if all population elements are investigated one by one. The respondents of this study consisted of buffalo breeders in Sorkam Barat District, Central Tapanuli District. This research was conducted using a questionnaire to interview a number of buffalo farmers in the Sorkam BaratSubdistrict of Tapanuli Tengah District.

Data Collection Methods
The data used in this study consisted of primary and secondary data : Primary data obtained through surface observation and interviews with respondents.Secondary data is data collected from the search of library studies, Central Bureau of Statistics data, and data from other agencies related to research interests. 2.4 Analysis data Data obtained from interviews in the field are processed and tabulated and then the costs of producing and receiving farmers are known. Then the data is analyzed using the income analysis method and processed with the econometric approach model and explained by descriptive method. According to Soekartawi[4], that to calculate income from buffalo raising activities, it can be calculated using the following formula:

Conclusions
The income of buffalo farmers in Sorkam Barat Subdistrict varies where the smallest income is Rp. 370,000 / year with the scale of livestock business 2 tails and the largest is Rp. 68,805,000 / year with a business scale of 47 tails.The number of livestock (business scale) and the number of workers is a very influential factor on farmer income, business scale has a positive influence in increasing farmer's income but the number of workers has a negative influence on farmer's income, causing a decrease in farmer's income while the farmer's age, farming experience , and the number of family dependents has no significant effect (does not provide an increase) on farmers' income in Sorkam Barat District, Central Tapanuli Regency.