this study was conducted to evaluate the share of cost factors affecting on final cost of broiler live weight per kilogram in tehran province. data were collected through questionnaires. farms were divided to three cost ranges: less than 35,000, between 35,000 to 40,000, and over 40000 rails based on production cost per kg of live weight. in this study, water and additives, staff, vaccines, tra...

Despite the sporadic discovery of new cases of bovine spongiform encephalopathy (BSE), Canadian officials say a ban on the use of ruminant material in feed and other measures are working effectively to limit the risk to humans. So assured are experts that Canada has contained the mad cow disease threat from the national herd of 14 million cattle that they are turning their attention to other an...

The Dixit entry/exit real option model was applied to the entry/exit decisions of New York dairy farmers. For the cost structure of a 500-cow farm the entry milk price is $17.52 per hundredweight (cwt.) and the exit milk price is $10.84. For the 50-cow farm cost structure the entry price is higher at $23.71 per cwt., and the exit price is also higher at $13.48. If infinite numbers of representa...

Accepted: 13/06/2016 Abstract A study was undertaken to investigate the effect of supplementing formaldehyde treated rape seed meal on milk production, milk composition and feed conversion efficiency. Dietary supplementation of formaldehyde treated rape seed meal had no significant effect on the dry matter intake of cows from different groups. The average milk yield and 4% FCM yield were signif...

Commercial cow-calf producers have an increasing number of options available for the synchronization of estrus and ovulation to facilitate the incorporation of an artificial insemination (AI) program. At the same time, low-cost production and/or the ability to produce a higher valued product are essential for economic success in the cow-calf industry. Previous research has examined the costs of...

SHAHEEN, M., I. AHMAD, F. M. ANJUM, Q-A. SYED and M. K. SAEED, 2015. Effect of processed rice bran on growth performance of broiler chicks from Pakistan. Bulg. J. Agric. Sci., 21: 440–445 Rice bran was added in broiler chicks feed by replacing 20% maize or 15% wheat. Signifi cant difference in weight gain, feed consumed, feed conversion ratio (FCR), dressing percentage, pancreas weight, feed co...

Automatic milking systems (AMS) offer relief from the demanding routine of milking. Although many AMS are in use in Europe and a few are used in the United States, the potential benefit for American farms is uncertain. A farm-simulation model was used to determine the long-term, whole-farm effect of implementing AMS on farm sizes of 30 to 270 cows. Highest farm net return to management and unpa...

Livestock production, and more particularly ruminants, is criticized for its low conversion efficiency of natural resources into edible food. The objectives this paper are to propose an evaluation the contribution food security different European cattle farms through three criteria: 1) production assessed by amount human-edible protein (HEP) energy (HEE) produced at farm level, 2) feed-food com...