The efficient production of milk drives the profitability of the dairy enterprise. Within a dairy herd, total milk production is determined by the proportion of cows producing milk at any given time and the level of milk production of the individual cows within the herd (Vandehaar, 1998). Both of these factors are dramatically affected by reproductive efficiency. Improving reproductive efficien...

to evaluate the effects of biological phosphorous, chemical fertilizers and limited irrigation regime on quantitative and qualitative characteristics of two different grain sorghum cultivars (kimiya and speedeh), this experiment was conducted in research farm of college of agriculture, university of tehran during 2009 growing season. the experimental treatments were arranged as split split plot...

This paper investigates how managerial capacity aspects influence efficiency of dairy farms in Sweden. Based on non-parametric methods, Tobit and logistic regressions, several managerial capacity aspects are found to influence long and short run input efficiency scores, but to influence output efficiency less. Examples of important aspects are: internal locus of control, positive profitability ...

access to stable development requires organized participation of all people, including women in all institutes. reduction of limitations and increase in legal authority of women are necessary to achieve the highest rate of participation. in this regard, a developmental approach demands a balanced increase in the legal knowledge, organizational authorities and civil demands of women particularly...

With the aim of improving poplar timber production, a successive 8-year irrigation and fertilization factorial experiment with three blocks was designed to measure the response of Populus tomentosa stands to water and nitrogen in Huabei Plain, China. Specifically, we examined the responses of four P. tomentosa clones (P. tomentosa BT17, S86, B331, and 1316) to three irrigation levels (45%, 60%,...

background: assessment of national children growth has shown that a high percent of country's children are afflicted to growth failure. community participation is one of the principles of phc emphasized by who that is necessary for develop­ment of health services. the objective of this study was to develop a model for mother's participation in order to improving growth and nutrition of children...