This study characterizes dynamic ammonia (NH3) and carbon dioxide (CO2) emissions associated with feeding and defecation activities of laying hens. Manure handling scheme used was reflective of commercial manure-belt house operation. Four dynamic emission chambers and measurement system was developed, featuring continuous measurement of the following variables for each chamber: (a) NH3 concentr...

A dairy herd submodel was created for integration with other farm submodels to form DAFOSYM, a dairy farm simulation model. The herd submodel determines the best mix of available feeds to meet the fiber, energy, and protein requirements for each of six animal groups. The groups are early-, mid-, late-, and nonlactating cows, heifers over 1 yr old, and younger heifers. Feed intake, milk producti...

The use of antibiotics in animal husbandry contributes to the worldwide problem of increasing antibiotic resistance in animal and human pathogens. Intensive animal production is considered an important source of antibiotic resistance genes released to the environment, while the contribution of smaller farms remains to be evaluated. Here we monitor the spread of tetracycline resistance (TC-r) ge...

The objectives of this study were to investigate the effects of dietary crude protein (14.5 or 12.0%) and cellulose (8.7 or 2.5%) levels on composition of feces and manure after 8 wk of diet feeding and storage. Pigs were fed twice daily; after each feeding, urine and feces were collected and added to manure storage containers. On weeks 2 and 8 after initiation of the experiment, fresh fecal an...

The number of farm-based biogas plants in Austria increased rapidly in the recent past, a continuing interest in this technology is expected. A survey was carried out in 2002 to provide information for farmers and the decision makers involved. In most plants slurry and manure is co-digestion with energy crops and/or organic waste. Wet fermentation in mesophilic digesters with post-digesters com...

Coriander is an important spice crop grown through out the world. As organic manures tend to reduce cost of cultivation and supplement with essential nutrients for growth development plant hence present study effect different fertilizers their doses on nutrient uptake in coriander variety JD-1 was conducted at Horticulture complex, Department Horticulture, JNKVV, Jabalpur (M.P.) year 2011-2012....