A big number of entomophilous plants are cultivated in Russia. These plants need a cross-pollination which is effected by bees only. Beekeeping is a quite specific branch and in a lot of countries it is automated and mechanized. For estimation of the level of labour productivity as well as the level of mechanization and automation in the branch, it is proposed to implement a ROL index. In our work the estimation of ROL across the countries — leaders in bee-keeping — was done. It is proposed to implement the expenditure index which is inverse to the profitability. The objective function of ROL optimization is proposed. The objective function considers the level of mechanization and automation of the output. Optimization of objective function parameters was carried out based on example of Krasnodar region for 4 threshold values of ROL: $ 10 000 per person, $ 20 000 per person, $ 30 000 per person, $ 40 000 per person. These are the main levels of automation and mechanization of technological processes in beekeeping. It was stated that it is possible to increase the ROL up to the advanced countries level by means of increase of automation level. In this case the service norm also increases up to values of USA and Canada. The search of optimal solution of objective function and optimal values of its parameters gave the possibility to establish the rational value of bee-families service norm related to a beekeeper for all levels of automation and mechanization.
Keywords: Labour productivityprofitabilitybeekeepingproductivityautomationmechanization
The labour productivity is the consistence part of gross domestic product (GDP) which is related to a unit of country population and defines, on a whole, the level of state competitive-ness. The first place - in respect to the mentioned indicator — belongs to USA: $ 28 000 – 30 000 of production per a population unit. In Russia this indicator is only $ 6 000 - 7 000 per a population unit (Oskin & Ovsjannikov, 2015). The level of development of agricultural branch is defined by the share of GDP produced by a full-time worker. In all countries including Russia agricultural goods are produced not only by big enterprises employing full-time workers, but also small farmers, seasonal workers, etc. In the bee-keeping branch the latter are the main working power (Chen et al., 2019). To make the picture more clear: in all countries the number of workers is related to the number of full-time workers, i.e. to 8 hours per day (or 2000 hours per year).
In bee-keeping the productivity, mainly, is estimated as quantity of marketable honey related to a bee-family. The indicator “quantity of honey to a bee-family” in Russia is ultimately low in comparison with another countries: USA – 36 kg, China – 27 kg, Mexico – 22 kg, Russia – 10 kg. The average figures of high-productive beekeeping in USA in 2000:
Annual honey after-sale income - $ 125 Million;
The amount of state donations - $ 46 Million;
600 professional bee-keepers produced 75 % of marketable honey;
The average profitability of bee-keepers – 20 %;
Each professional bee-keeper keeps 1 500 - 2 500 bee-families;
The total number of full-time workers – 24 00, part-time workers – 5 000.
In spite of big number of applicable economical criteria of agricultural modernisation efficiency (Oskin & Oskina, 2006), the most part of them are hard to apply in beekeeping. It is caused by the mentioned specific of the bee-keeping branch and interconnection with ecology factors (Korzh, 2008; Oskin, 2011; Oskin, 2013). In some countries, e.g. USA and Canada, the level of automation and mechanization of technological processes in beekeeping is quite high. Nevertheless, in some other countries (China, Russia) the majority of processes are realized manually in spite of high value of gross product. It is required to establish the adequate index of labour productivity in beekeeping, and, based on this index, to define the main trends of its increase through modernization of production process (Anand, Raj, Ullas, & Srivastava, 2018).
Purpose of the Study
In agricultural production the profitability, or ROL, is one of complex indicators of labour productivity. The equation for estimation of ROL in bee-keeping branch is obtained. The equation considers the price and prime cost of the unit of production, the average number and honey productivity of bee-families, the average number of workers at a production cycle, all types of donations and costs (Krepper, Pistonesi, & Di Nezio, 2019). The ROL in the top-10 countries with high rates of labour productivity and gross honey harvest is calculated. It is defined that, according to the mentioned parameters, Russia occupies the 7th place in this rating. We do not have the equation for computation of ROL in bee-keeping branch is proposed (Singh & Singh, 2018). The equation has to con-siders the number of honey harvestings, established price for a honey variety, number of bee-families, an average honey productivity of a bee-family during the honey harvesting period at the certain honey plant, constant and variable production costs.
For bee-keeping branch the return on labour – ROL – is the most suitable indicator. In analogy to the common expression for labour profitability, the equation for estimation of ROL in bee-keeping branch was obtained as follows (Oskin & Ovsjannikov, 2015):
here - the cost per production unit, m.u./t; - prime cost of production, m.u./t; - the average number of bee families, pcs.; - the average honey productivity of the one bee family, t; - the average number of workers involved in honey production; - all types of donations, m.u./t; - resources costs, m.u./t; - salary of workers, m.u./t; - other costs, m.u./t.
Considering the fact that financial flow units are expressed through monetary units (m.u.), then the measure unit for labour productivity will be expressed as m.u./person.
The ratio is, in fact, a service norm, then the equation (1) could be written as follows:
In financial and economical activity the index of ROM is also used. This index is counted as a ratio of income to the full prime cost of production and selling of goods. Then the expression in brackets in the Eq. (2) is the profit, and then the Eq. (2) could be written as:
Nevertheless, mostly the prime cost of production and selling are unknown, but ROM as well as production procurement price are known. Based on this, it is worth to write the Eq. (3) as:
Labour profitability in top-10 countries with high indicators of labour efficiency and total honey harvest was counted, and data presented in the Tables
As follows from the Tables
Due to the fact that honey harvesting takes place several times per season, the Eq. (1) and (2) could be modified and the following expression is obtained:
The costs could be constant - independent on the level of mechanization and automation of the labour, and variable - dependent on the certain level of mechanization and automation and influencing on the service norm and honey production. Based on the herein above, the Eq. (5) will be modified as follows:
Thus, the ROL of beekeeping depend on:
The quantity of honey harvestings n - the more often a bee-keeper will change his location, the higher is profitability;
The established price for the exact variety of honey ;
Number of bee-families ;
Average honey productivity of a bee-family at the honey harvesting at the certain melliferous plant ;
Constant and variable costs ,
Additional profit obtained after selling of side products of bee-keeping .
All these dependencies could be performed as a common functional:
If profitability will converge to the maximal value at the certain parameters of the Eq. (6), then it will be an objective function for the considered case:
Lets analyse the obtained expression and define the directions for increasing of ROL of bee-keepers. Due to division of costs, the equation for definition of profitability will be modified as follows:
Lets carry out the further modifications of the obtained expression:
Both parts of the expression will be divided by :
The following parameters are introduced: - profitability at the constant costs , - profitability at the variable costs connected with automation and mechanization of labour.
Considering the implemented designations lets carry out the further modification of the Eq. (11):
In the case of division of costs onto more constituents, the general equation for ROM could be obtained:
- profitability at
Lets designate the inverse value of profitability as
, for the case with automation (14)
Considering all designations done the Eq. (4) could be written as follows:
For our case considering automation and mechanization the Eq. (4) will be:
The general objective function could be written as follows:
The further analysis of the objective function could be done in different ways depending on ways of achievement of result.
Lets analyse the objective function using as an example bee-keeping at Krasnodar region (Russia). All beekeepers could be divided onto two groups: first group – bee-keepers as amateurs for whom the income from this activity is not crucial, second group – bee-keepers as professionals for whom the income from this activity is the main income source. For the first group the usual production process is – 2-time honey harvesting per season. For the second group – 3-time honey harvesting per season. For this purpose the Eq. (17) could be used and, taking into account the constant values of service norm and ROM, for 3-time honey harvesting:
Lately, the part of beekeepers is focused on the certain varieties of honey which let them sell their production at the highest price, but with the certain share of losses in honey productivity. In such cases the number of honey harvestings per season could be increased. Nevertheless, it is efficiently to carry out four-time harvesting per season – a harvesting per a honey variety. Lets carry out a calculation of labour productivity considering four-time harvesting and, at the same time, divide the first harvesting, in accordance with honey productivity, onto two parts. One of this parts will be sold at a price of
The following circumstance should be taken into account: if a beekeeper increases the level of automation then the financial investments in new equipment will be done - with the high probability - in a lump, and it would be better to share its reimbursement onto whole season, in accordance with income. Thus, in the equation for profitability in each period (17) the equal value of expenditure index for all honey harvestings will be included. Depending on the level of automation and mechanization, the service norm will be also changed. Considering the earlier carried computations, in accordance with ROL in other countries as well as the fact that beekeepers in Krasnodar region at the existing number of bee-families related to a bee-keeper have the certain equipment for reduction of laboriousness, the following equation for ROL at the certain period was obtained:
Here - the empiric equation for service norm.
Then for beekeeping of Krasnodar region at the rate of the value of expenditure index will be equal to .
Considering all above, the ROL will be:
It is well known that the higher level of automation and mechanization in bee-keeping branch, the lower the honey production of a bee-family. It is connected with impossibility to maintain an individual approach towards each bee-family: it is impossible to cut with high quality the wax frames before harvesting at the automated installations, at the installations with electric drive the damages of the wax frames and wax itself could happen, etc. All above leads to additional energy consumption of a bee-family targeted on reconstruction of damages. Also increase in the level of automation leads to increase in number of bee-families, and a beekeeper is forced to focus on the gross sales of honey. At the same time, at the small number of bee-families a beekeeper sells a part of honey by retail at a higher price per kilogram of the product. Thus, at the highest level of automation and mechanization (the 4th level, in accordance with the proposed classification) the result of production of honey production of a bee-family and price of the one kilogram of honey will be less at a rate of 20-25 % in comparison with the lowest level. The mentioned decrease was divided at four intervals and approximated by the most appropriate mathematical expression. As a result, the following object function was obtained:
here - coefficient of price- and honey production decrease at the certain level of automation and mechanization of technological processes, .
At the optimization at the first level of automation and mechanization the following boundary conditions were implemented:
The market price of honey and honey production do not increase at the rate exceeding 10% (because a bee-keeper, practically, cannot influence on it or keep it under control);
The expenditure index of main production is a constant value equal to the value from the previous example;
A service norm could be calculated as a result of optimization in accordance with equation .
Then, the objective function and a result of optimization will be as following:
Search of optimal solution was realized with the help of software MS Excel by iterative method based on Newton method. The results of search of optimal solution are represented at the Table
In the same way the search of optimal decision is done for the rest levels of automation and mechanization. All results are represented at the Table
The further increase of ROL is also possible, but it could be implemented only through increase of honey productivity of bee-families.
The objective function of ROL in bee-keeping branch is obtained. The analysis of the function applied to Krasnodar region shows that at the three-time honey harvesting per season the ROL is $ 4250 per person, and at the four-time honey harvesting - $ 5000 per person.
It was offered to implement 4 levels of automation and mechanization of the main production processes. The respective optimal labour productivity for these processes are: $ 10 000 per person, $ 20 000 per person, $ 30 000 per person, $ 40 000 per person. The definition of expenditure index related to automation and mechanization of the technological processes is implemented. This value is the inverse towards profitability.
Search of the optimal solution of the objective function and its optimal parameters was carried out by means of software MS Excel in iterative way based on the Newton method. The search shows that for the first level of automation and mechanization of the main technological pro-cesses the optimal value of the service norm per a beekeeper is 132 bee-families at the level of expenditure index of production equal to 0.66. At the same way, the optimal values for the other levels of automation and mechanization were obtained:
2nd level – service norm is 375 bee-families per a bee-keeper at the expenditure index 1.88;
3rd level – service norm is 891 bee-families per a bee-keeper at the expenditure index 4.46;
4th level – service norm is 1576 bee-families per a bee-keeper at the expenditure index 7.88.
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01 April 2020
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Oskin, S. V., Kurchenko, N. Y., & Ovsyanikov, D. S. (2020). Main Trends Of Increase In Productivity Of Beekeeping. In & V. V. Mantulenko (Ed.), Problems of Enterprise Development: Theory and Practice, vol 82. European Proceedings of Social and Behavioural Sciences (pp. 280-289). European Publisher. https://doi.org/10.15405/epsbs.2020.04.36