Farm budgets based on survey data a r e used to calculate the net revenue for average irrigated and unirrigated farms for four tenure classes on the Milagro irrigation project, Ecuador. Differences in net revenues between irrigated and unirrigated farms within each tenure class are assumed to be the return to investment in irrigation capital, assuming homogeneity of all other production factors. The internal rate of return is calculated on investment in irrigation capital assuming returns to such an investment are the difference in net revenues between irrigated and unirrigated farms. Investment in such capital is found to be highly profitable assuming the opportunity cost of capital is 12 per cent. However, small size farms (minifundios) are relatively more profitable than larger farms. Also, the pure economic profit (rent) accruing to each hectar of land is determined. This is done by finding the water tariff that causes the internal rate of return to fall to 12 per cent and subtracting the current water tariff per hectar (S/. 200) from the maximum tariff. The difference is rent per hectar, which is greater for small farms than larger ones. However, when total land area by tenure class is considered, larger farms capture the greatest share of the economic rent from the project.

This study was undertaken to determine which characteristics, if any , distinguish exit from active milk producers; why producers exit from the industry; what happens to those resources formerly used in the dairy industry; the predictability of a producer either increasing or decreasing in size. This study encompassed the milk producers in the Great Basin Federal Milk Market Area which is the central and northern part of Utah. It was not possible to determine any characteristics which would distinguish the exit from the active producers. All of the sample producers sold most of their cows. A large percentage kept their land and continued to operate it. Much of the equipment was kept by the producer. The Markov Chain analysis indicated that dairy farm numbers will decrease: however, the size of the active farms will increase.

The purpose of this study was to investigate the usefulness of an integrated model of therapy for one therapist. Qualitative and quantitative data were gathered from three family dyads. Ten therapy sessions were coded and analyzed to evaluate fidelity to the treatment model. Several themes emerged from the data that provided a foundation for analysis and clarification of the integrated model. The results of this research are organized into four research categories: fidelity to the integrated model, clients and change, how one session or case informs another, and how therapeutic decisions were made. Results indicate that the therapist maintained fidelity to the integrated model and client changes resulted. An analysis of the treatment model is discussed, along with schemes for decision-making and the implementation of therapeutic techniques. Clinical implications and limitations are discussed.

A study was made of cost and net return of the milking enterprise of selected D.H.I.A. members of Northern Utah. Production cost for market milk ranged from $6.37 to $3.74 per 100 pounds of milk with the weighted average for all enterprises being $4.71 per 100 pounds of milk. Production cost amounted to an average of $538.24 per cow. Total receipts amounted to $4.64 per 100 pounds of milk or $531.18 per cow per year. Net return was calculated by deducting total cost from total receipts and amounted to minus $335 per enterprise or minus $7.23 per cow per year. Manufacturing milk production cost averaged $543.85 per cow per year and average total receipts were $466.97 per cow per year. Net return averaged minus $76.88 per cow per year. A larger number of cows per herd was associated with lower total cost per cow, but a large herd did not lower cost per cow enough to make low producing cows profitable. In the milking enterprise high efficiency in one measure offered no assurance of high net return. The most successful enterprises were those that were better than average in the greatest number of efficiency measures.

Native and introduced grass and shrub species are grown for seed production in the Great Basin region of the United States. The purpose of this research is to evaluate the profitability and risk associated with the production of five different species of grasses and shrubs which are used in rehabilitation following wildfires. Enterprise budgets are constructed for both the establishment and production years. Returns above operating costs are compared to other crops produced in the same region. Production and market risks are discussed. Returns and risks are evaluated using an expected value model which compares risk and return between species, as well as risk and return for seven different crop combinations on a simulated 400-acre farm. All five species evaluated are found to be more profitable than other crops grown in the region. However, there are many production and market factors which must be carefully considered prior to investment in grass and shrub seed production.

Wool has been an important product in Utah since the pioneers arrived. The Mormon pioneers had with them 358 head of sheep upon entering the Salt Lake Valley. At that time there were also 12 head of sheep near Ogden, Utah belonging to Miles Goodyear, a trading post operator. These early people were very dependent upon wool for their clothing and numerous other products.

Environmental threats to fisheries are a rising concern for fishery managers. Gulf of Mexico hypoxia is particularly concerning. In order to properly manage Gulf fisheries, the sustainability of species stock and its natural capital values should be analyzed. As an empirical effort, I use blue crab in Louisiana waters as a case study to build a bioeconomic model of blue crab under hypoxia. I apply the natural capital valuation approach to estimate the blue crab value function under hypoxia in order to assess blue crab sustainability. I find that blue crab management in Louisiana under hypoxia is not sustainable, being less so under increasing hypoxia severity. In order to manage blue crab fisheries more stably under hypoxia, regulatory agencies along the Mississippi River should continue current efforts to reduce hypoxia, and take steps to sustain more blue crab stocks by management regimes reflecting the severity of hypoxia.

This research evaluates how contextual variables such as knowledge of the rules, the perception about punishment and formal enforcement levels, perception of social control, fishers’ attitudes about legitimacy of rules, and social/economic factors, affect compliance with fisheries regulations. The analysis is carried out in Old Providence Island [OPI]. A survey of 100 fishermen was completed and data from that survey is used to econometrically estimate a model of compliance choices. Results suggest that reports on compliance change depending whether the interviewed is asked about compliance or about violation. I argue that this seemingly inconsistency, reveals an implication on methodological approach. Contrary to the main literature on compliance behavior, in this research deterrence variables were not statistically significant in the econometric estimations. This result may be because sanctions and fines are not clearly established, reflecting the existence of structural problems in enforcement activities in the island. The results indicate that fishers adjust their violation with respect to other fishers’ behavior, and the knowledge about regulations. The probability of being a violator is higher for divers, and this fact is recognized by the fishers themselves.

The breeding of the guinea pig in Bolivia has always been important for the inhabitants of rural areas. Nevertheless, in recent years there has been broader acceptance for consumption of the guinea pig in the urban middle class, beginning to grow the market of the meat of guinea pig in the Departamentos of Bolivia, because the good flavor and high degree of nutrition of this meat, therefore offering a good option to improve nutrition in the diet of Bolivians. Currently the type of breeding found of the valleys of Bolivia in the great majority of the communities is family-based, with essentially native and mixed-breed animals that have good characteristics of resilience and rapid maturation but with low yield with respect to the weight of the carcass. The producer has basic know-how of some aspects of the breeding; however, this is not sufficient to optimize of production and to achieve greater yields. In the Project of Genetic Improvement and Management of the guinea pig in Bolivia (MEJOCUY), through the course of several years of the investigation into the genetic improvement of guinea pigs, has achieved the establishment of two populations of meat production for different bioclimatic conditions of Bolivia: the MEJOCUY population and the Tamborada population. Nevertheless, the productive performance in field conditions by both populations is as yet unknown, for which reason the need arises to evaluate these yields to identify which of them presents better results and to offers the producer a population that adapts best to field conditions and can obtain better benefits. Therefore, the objectives of the given work were the following: GENERAL OBJECTIVE To compare the productive yield in guinea pigs of the two populations of meat production in field conditions and MEJOCUY research barns. SPECIFIC OBJECTIVES To compare the productive yield of guinea pigs in family breeding of the High Valley of the Departamento of Cochabamba with the productive yield in the Project MEJOCUY research barns. To quantify weight gain per animal in the stages of lactation and adolescent development of the populations MEJOCUY and Tamborada under field conditions and at Project MEJOCUY research barns. HYPOTHESIS Ha: The productive yield of the populations MEJOCUY and Tamborada is greater in the Project MEJOCUY research barns with regard to the performance of the same in field conditions. Ho: The productive yield of the populations MEJOCUY and Tamborada is similar in field conditions with respect to the sheds of the project MEJOCUY.

The guinea pig (Cavia aperea porcellus) is an alternative to improve human nutrition because its meat is of excellent taste and quality. Thus, it is an important nutritional source. The feed conversion index was determined under the basic (forage) and mixed (forage and concentrate) diets during the growth phase. This was done with both sexes located in the Tamborada and MEJOCUY populations, using the AUQUI, and San Luis lines. This was done in order to quantify how many kilograms of feed an animal must eat to gain one kilogram of live weight. The animals were randomly distributed into individual pools based on population, line, and sex for the period from 14 to 56 days old. Depending on the feeding system used, they received alfalfa forage and/or concentrated feed. In addition, they were weighed before and after feeding so the difference between food eaten and food rejected could be calculated. At the end of the 42 days of investigation, the feed conversion indexes were 5, 5.1, 4.8, and 4.6 for the basic diet and 5, 5.5, 4.9, and 4.9 for the mixed diet for the guinea pigs of the Tamborada and MEJOCUY populations and the AUQUI and San Luis lines respectively. The male and female animals had indexes of 4.7 and 5.3 respectively. Generally speaking, the San Luis line has the best feed conversion index, followed by the AUQUI line, the Tamborada population, and lastly the MEJOCUY population.