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Short communication: Effects of drying and analytical methods on nitrogen concentrations of feeds, feces, milk, and urine of dairy cows
- Source :
- Journal of dairy science. 102(6)
- Publication Year :
- 2019
-
Abstract
- Nitrogen concentrations in feeds, feces, milk, and urine samples were measured using 2 analytical methods following different drying procedures. Ten samples of corn silage, alfalfa silage, and concentrates collected from 2017 to 2018 at Krauss Dairy Research Center, The Ohio State University (Wooster), were used. A 4-d total collection digestion trial provided fecal samples from 10 cows (1 sample/cow), and another 10 cows were used to collect milk samples (1 sample/cow) and spot urine samples (1 sample/cow). Spot urine samples were acidified immediately to pH
- Subjects :
- Silage
Nitrogen
chemistry.chemical_element
Urine
Zea mays
03 medical and health sciences
Freeze-drying
Feces
Animal science
Genetics
Animals
Lactation
Desiccation
Kjeldahl method
030304 developmental biology
0303 health sciences
0402 animal and dairy science
food and beverages
04 agricultural and veterinary sciences
040201 dairy & animal science
Animal Feed
Diet
Milk
chemistry
Animal Science and Zoology
Composition (visual arts)
Cattle
Female
Digestion
Food Science
Medicago sativa
Subjects
Details
- ISSN :
- 15253198
- Volume :
- 102
- Issue :
- 6
- Database :
- OpenAIRE
- Journal :
- Journal of dairy science
- Accession number :
- edsair.doi.dedup.....b92a41efff26d5250fc61ab5c077c337