Operation optimization for large-scale offshore wind farms can cause the fatigue loads of single turbines to exceed their limits. This study aims improve economic profit by conducting multi-objective via decoupled group operations turbines. To do this, a farm is firstly divided into several subsets through parallel depth-first search (PDFS) and hyperlink-induced topic (HITS) algorithms based on...

Abstract The profit of catfish farm is a description performance the business, where determined by output and inputs price. This study aims to analyze profits determinants profits. used survey method, located in Pekanbaru City. research data are cross section what was obtained using inverview sampling method simple random with 98 farmers, Data analysis statistical multiple linear regression. Th...

Industrial animal agriculture is grounded in the concept of maximizing productivity and profit. Selective breeding for maximum productivity in one characteristic of the animal (e.g. milk yield in cows, or breast meat in broiler chickens) has resulted in genotypes and phenotypes that may predispose the animals to poor health and welfare. The conditions in which these individuals are kept may als...

In the 1990’s, the World Agroforestry Centre (ICRAF) initiated a domestication programme of indigenous fruit trees (IFTs) in Southern Africa to increase farmhousehold income through farmer-led tree planting and thus conserve bio-diversity. From the farmer's point of view planting domesticated IFTs is an investment under uncertainty and irreversibility. As timing of planting is flexible, real op...

Genetically modified trees are now one more expression of human intervention in nature. As for other people is a suicidal mood at the cost of profit maximization, for others is an inevitable trend for the survival of continuing growing world population that gathers several advantages, a survey of those directly involved in the primary sector, farmers, and deemed necessary. The implementation of...

Scarcity of fresh high-quality water has heightened the importance of wastewater reuse primarily in dry regions together with improving its efficient use by implementing the Subsurface Drip Irrigation (SDI) method. Sustainable effluent reuse combines soil and plant aspects, along with the maintainability of the application system. In this study, field experiments were conducted for two years on...

in this study 495 smallholder dairy farms in 52 villages of different township in southwestern province of iran (chaharmohal and bakhtiari province) included 1321 lactating cows and 2811 total mature cows (lactating and dry) during winter 2009 to summer 2010 were used to estimate economic opportunities insmallholder dairy farms. questionnaire survey was used to collect data from last year infor...

in iran, more than 96.4 percent of dairy farms (including more than 68.7 percent of cattle and calf) have a less than 20 heads of animals, and they produce more than two-thirds of milk and most of animal protein. also, large shares of water, land and labor force resources are used by this production section. less scientific studies have been focused on this production system despite it's m...

Palliser, Pierre Beukes, and Chris Folkers) is acknowledged and appreciated as some results were derived from their Whole-farm Model which has been under development for several years. Comments and feedback were generously contributed ABSTRACT The wide use of artificial insemination by dairy farmers has facilitated the development of a multi-billion dollar international market in animal genetic...

We compared density and morphology of wild mussels Mytilus trossulus growing naturally on shellfish farming structures to that of mussels from nearby intertidal areas, and considered the relevance to molluscivorous sea ducks. Mussel density on aquaculture structures greatly exceeded that of intertidal areas and farm mussels were larger, had lower shell mass, and had weaker byssal attachments. D...