Modelling Nitrogen Excretion in Dairy Cows: An Application to Farms in the Po Valley (Italy) [PDF]
AnimalsEffective nitrogen management in dairy cow diets is essential for optimising milk production and minimising environmental nitrogen emissions. This study develops a simplified model to estimate nitrogen excretion in dairy farms, distinguishing excretion ...
Valentina Caprarulo +6 more
doaj +2 more sources
Amino-Acid-Balanced Low-Protein Diets Reduce Nitrogen Excretion Without Affecting Growth Performance in Broilers [PDF]
AnimalsReducing greenhouse gas emissions from the livestock industry is essential for climate change mitigation. In poultry production, nitrous oxide (N2O) emissions from composted manure are a major concern because they are closely associated with nitrogen ...
Fumika Nanto-Hara +2 more
doaj +2 more sources
Effect of five hours of mixed exercise on urinary nitrogen excretion in healthy moderate-to-well-trained young adults [PDF]
Frontiers in NutritionIntroductionCarbohydrates and fats are the primary energy substrates during exercise, but proteins can also contribute. When proteins are degraded in the body, the amino groups are mainly converted to urea and excreted.
Matthieu Clauss +6 more
doaj +2 more sources
High genetic merit dairy heifers grazing low quality forage had similar weight gain and urinary nitrogen excretion to those of low genetic merit heifers [PDF]
Frontiers in Veterinary Science, 2023 Climate variability and increasing drought events have become significant concerns in recent years. However, there is limited published research on body weight (BW) change of dairy heifers with different genetic merit when grazing on drought impacted ...
L. Cheng +7 more
doaj +2 more sources
Associations of Lameness with Indicators of Nitrogen Metabolism and Excretion in Dairy Cows
Agriculture, 2022 The aim of the study was to investigate the impact of lameness on nitrogen (N) metabolism and excretion. Two treatment groups of 20 multiparous Holstein–Friesian dairy cows were included in study; the control group consisted of cows with locomotion score
Daniel-Catalin Necula +4 more
doaj +3 more sources
Can machine learning algorithms perform better than multiple linear regression in predicting nitrogen excretion from lactating dairy cows [PDF]
Scientific Reports, 2022 This study aims to compare the performance of multiple linear regression and machine learning algorithms for predicting manure nitrogen excretion in lactating dairy cows, and to develop new machine learning prediction models for MN excretion.
Xianjiang Chen +3 more
doaj +2 more sources
Corrigendum: Effect of five hours of mixed exercise on urinary nitrogen excretion in healthy moderate-to-well-trained young adults [PDF]
Frontiers in NutritionMatthieu Clauss +6 more
doaj +2 more sources
Effects of Feeding Low Protein Diets with Different Energy-to-Protein Ratios on Performance, Carcass Characteristics, and Nitrogen Excretion of Broilers [PDF]
Animals, 2023 Valeria Farkaš +2 more
exaly +2 more sources
Soil Organisms, 2022 The provisioning of nitrogen for plant growth is a key function of soils. Soil fauna primarily affect nitrogen mineralization through their interactions with microorganisms, but the excretion of feces and nitrogenous waste products can also supply ...
Birgit Lang, David J. Russell
doaj +1 more source
Journal of Dairy Science, 2023 : Reducing nitrogen pollution while maintaining milk production is a major challenge of dairy production. One of the keys to delivering on this challenge is to improve the efficiency of how dairy cows use nitrogen.
E. Tavernier +5 more
doaj +1 more source