the purpose of this study was to evaluate the profitability of hatchery litter recycling into poultry feedstuff supplement. the data were collected in 2011 in 4 provinces, by direct interviewing of all hatcheries which used the hatchery litter drying machine. net present value (npv), benefit-cost ratio (bcr), and internal rate of return (irr) methods were applied for this analysis. in the studi...

The purpose of this study was to evaluate the profitability of hatchery litter recycling into poultry feedstuff supplement. The data were collected in 2011 in 4 provinces, by direct interviewing of all hatcheries which used the hatchery litter drying machine. Net Present Value (NPV), Benefit-Cost Ratio (BCR), and Internal Rate of Return (IRR) methods were applied for this analysis. In the studi...

Broiler flocks on two Dutch poultry farms were screened weekly for the presence of campylobacter in fresh caecal droppings during eight consecutive production cycles. Hatchery and fresh litter samples were taken at the start of each new cycle. Water, feed, insects, and faeces of domestic animals, present on the farms were also included in the sampling. Penner serotyping of isolates was used to ...

s of papers 5 indicator viruses such as male specific coliphages can have signficant advantages since they can serve as conservative pathogen indicators. Also, the ability to detect pathogens originating from poultry wastes can be extremely important when assessing risks from poultry wastes. Eighteen poultry pine litter samples and conventional paper chick box trayliners obtained from a local g...

Limestone springs support productive ecosystems and fisheries, yet aquaculture may modify or impair these ecosystems. We determined trout hatchery organic contribution to spring creek sediments and foodwebs with natural abundance stable isotope methods. Hatchery feed, waste, and trout were significantly enriched in delta(13)C relative to autotrophs and wild fish. Spring creek sediments were enr...

We inoculated 5 cm2 of clean chick pads, 5 g of clean pine shavings, and fresh unsanitized broiler breeder eggshell halves with a cell suspension of Campylobacter jejuni in physiological saline. Inoculation levels were 10(2), 10(3), or 10(4) cells per sample. The samples were allowed to remain at room temperature for 15, 30, or 60 min before addition of enrichment broth. When chick pad samples ...

Due to concern about increasing mortality among 7 -day old chicks in a chicken hatchery the management arranged to screen all hatchery staff for salmonella excretion. The hatchery is part of a complex involving all stages of chicken meat production but is physically separate from the broiler units and chicken processing plant. The hatchery also has its own staff, there being no exchange of staf...

—Hatchery-reared salmon have been reported to be inferior to wild fish in some studies and competitively superior in others. We examined the influence of early rearing environment (hatchery versus natural) on the summer survival, movement, and growth of genetically similar juvenile coho salmon Oncorhynchus kisutch in streams. In each of 2 years, 5,000–10,000 fry from a hatchery cohort were plac...

Although Salmonella is a major problem in poultry food safety, it is believed to be of minor concern for broiler production in regard to animal performance. To determine the effect of Salmonella challenge in broiler chickens, 2880 male Cobb 500 birds derived from a commer­ cial hatchery were evenly distributed over 48 floor pens resulting in 60 birds per pen. Litter was 50% new wood shavings an...