Management to reduce nitrogen losses in animal production

CA Rotz - Journal of animal science, 2004 - academic.oup.com
Reduction of nitrogen loss in animal production requires whole-farm management. Reduced
loss from one farm component is easily negated in another if all components are not equally …

[HTML][HTML] Performance, digestion, nitrogen balance, and emission of manure ammonia, enteric methane, and carbon dioxide in lactating cows fed diets with varying …

C Arndt, JM Powell, MJ Aguerre, MA Wattiaux - Journal of Dairy Science, 2015 - Elsevier
Two trials were conducted simultaneously to study the effects of varying alfalfa silage (AS) to
corn silage (CS) ratio in diets formulated to avoid excess protein or starch on lactating dairy …

[HTML][HTML] Partition of nitrogen excretion in urine and the feces of Holstein replacement heifers

JC Marini, ME Van Amburgh - Journal of dairy Science, 2005 - Elsevier
Increasing public concern has been focused on animal production systems as a major
nonpoint source of pollution. These studies were conducted to further our understanding of …

[HTML][HTML] Scientific report on the effects of farming systems on dairy cow welfare and disease

EFS Authority - Efsa Journal, 2009 - ncbi.nlm.nih.gov
This report categorises European dairy farming according to internationally used
classifications of farming systems. Human and exogenous institutional factors are also …

Greenhouse gas emissions from stored dairy slurry from multiple farms

EL Le Riche, AC VanderZaag, JD Wood… - Journal of …, 2016 - Wiley Online Library
A significant need exists to improve our understanding of the extent of greenhouse gas
emissions from the storage of livestock manure to both improve the reliability of inventory …

Scientific Opinion on the overall effects of farming systems on dairy cow welfare and disease

European Food Safety Authority (EFSA) - EFSA Journal, 2009 - Wiley Online Library
Following a request from the European Commission, the AHAW Panel was asked to deliver
a Scientific Opinion on the welfare of dairy cows, considering whether current farming and …

[PDF][PDF] Assessments of Biogenic Gas Emission Processes in Cowsheds.

R Bleizgys, L Baležentienė - Polish Journal of Environmental Studies, 2014 - pjoes.com
Microclimatic factors rendering gas emissions from manure were evaluated during the four
seasons throughout a year. The most favorable microclimatic conditions for the highest …

Ankara ili büyükbaş hayvancılık işletmelerinde atık yönetim sistemlerinin değerlendirilmesi

HE Polat - 2007 - search.proquest.com
Bu çalışmada, Ankara İli'nde bulunan 476 adet büyükbaş hayvancılık işletmesinde
uygulanan atık yönetim sistemlerinin yapısal ve fonksiyonel özellikleri yönünden yeterlilik …

[PDF][PDF] Influence ventilation rate on ammonia concentration and emission in animal house

B Kavolelis - Polish Journal of Environmental Studies, 2003 - pjoes.com
The mathematical model to analyze ammonia concentrations inside lifestock facilities has
been made. The regression relationship of the intensity of the ammonia evaporation in the …

[PDF][PDF] SCIENTIFIC REPORT OF EFSA

B Algers, G Bertoni, D Broom, J Hartung, L Lidfors… - 2008 - academia.edu
BACKGROUND Council Directive 98/58/EC concerning the protection of animals kept for
farming purposes lays down minimum standards for the protection of animals bred or kept …