A metafrontier analysis of sheep production in the N8 development corridor

[摘要] English: In South Africa, sheep enterprises play an important role as a source of livelihood for many farmers, especially smallholder farmers. The productivity of sheep farmers in South Africa is very low. The lack of analytical evidence on efficiency levels of smallholder sheep farmers in the different sheep production systems limits policy-making on optimal allocation of resources. In addition, these smallholder farmers are faced with numerous constraints regarding production, which is considered to be one of the many factors impeding their productivity and livelihood. Very little is known empirically about the constraints faced by these farmers and how they can be overcome.This study analysed the factors that influence the productivity of sheep production to enhance the livelihoods of smallholder sheep producers in the N8 development corridor and toidentify and rank the constraints faced by smallholder sheep farmers along the N8 development corridor. Data for this study was collected with the use of structured questionnaires. A sample size of 217 smallholder sheep farmers comprising 157 from Thaba Nchu and 60 from Botshabelo was used.The stochastic metafrontier model was used to estimate technical efficiency and technology gaps across the different farms in the study areas. The Kendall's coefficient of concordance was used to identify and rank the constraints faced by smallholder farmers.The empirical results of the study revealed that farmers in both Thaba Nchu and Botshabelo are technically inefficient. The empirical results show that herd size and feed cost had significant positive effects on sheep output in Thaba Nchu municipal district, indicating that these variables are vital for enhancing sheep production in Thaba Nchu. However, land size and sheep loss were found to have a significant negative effect on sheep output in Thaba Nchu. The negative effect of land size on sheep output wascompletelyunexpected. Itis assumed that these farmers have relatively small herds, and increasing land size will only add tothecost of managingthe land. On the other hand, land and transport costs had significant positive effects on sheep output Botshabelo, indicating that these inputs are vital to enhancing sheep production in this district municipality. Sheep loss had the expected significant negative effect on sheep production in Botshabelo. In the pooled sample, herd size, feed cost and labour were found to have significant positive effects on sheep production in the study areas. However, land size and sheep loss were found to have a significant negative effect on sheep output in the pooled sample. The gamma value of 0.679 means that about 67.9% of the variation in sheep output in Thaba Nchu is explained by technical inefficiency, while 32.10% of the variation is due to random shocks and statistical noise. For Botshabelo, the gamma value (0.779) was relatively higher than in Thaba Nchu, indicating that the effects of inefficiency on variation of the sheep output is far larger than that of random shocks. The pooled sample had a gamma value of 0.799. This means that 79.9% of the variation in sheep production in the study areas is due to inefficiency and 11.1% is due to random shocks. The variation in sheep production for the study areas is generally due to technical inefficiency on the part of the sheep farmers. The stochastic production frontier analysis showed that the average technical efficiency of Thaba Nchu farmers was 67.3% and 65.7% for farmers in Botshabelo. This result indicates that there is 32.7% potential for Thaba Nchu farmers to expand their production by operating at full technical efficiency level, while the scope for Botshabelo to increase the level of efficiency using available farm resources and technologies is about 34.3%. The variables that influence the technical efficiency level of Thaba Nchu farmers are indigenous sheep breed, education level, veterinary services and market distance. Indigenous sheep and market distance had a significant negative effect on technical efficiency in Botshabelo while farm experience and crossbreeding method had significant positive effects on technical inefficiency. Theft, lack of capital, diseases and parasite were found to be the most severe constraints facing the sheep farmers. The average technical efficiency scores estimated relative to the metafrontier (TEm) for Thaba Nchu was 0.495 while for Botshabelo was 0.442. The results indicate further that a regional production frontier is necessary to advise farmers in each district on ways to improve the productivity and efficiency of sheep production. It can be concluded from the results of the study that farmers in the study area are producing well below the production frontier. This means that farmers have the potential to increase their productivity and efficiency in order to produce at full capacity.The policy recommendation arising from this study is that farmers should be trained on proper farm management techniques and that proper market channels should be developed for farmers to sell their products. Building new fences and improving old ones will help prevent theft and will increase sheep outputs.

[发布机构] University of the Free State