Technical note: Evaluation of procedures for analyzing ration sorting and rumen digesta particle size in dairy cows

Journal of Dairy Science

Volumn 93, Issue 8, 2010, Pages 3784-3788

  Maulfair, D D ^a   Heinrichs, A J ^a  

^a PENNSYLVANIA STATE UNIVERSITY   (United States)

Author keywords

Dairy cow; Feeding behavior; Particle size; Sorting

Indexed keywords

ANIMAL; ANIMAL FOOD; ARTICLE; CATTLE; CLINICAL TRIAL; CONTROLLED CLINICAL TRIAL; CONTROLLED STUDY; DIGESTION; FEEDING BEHAVIOR; FEMALE; PARTICLE SIZE; PHYSIOLOGY; PSYCHOLOGICAL ASPECT; RANDOMIZED CONTROLLED TRIAL; RUMINANT STOMACH; ANALYSIS; BOVINAE; PSYCHOLOGY;

ANIMAL FEED; ANIMAL NUTRITIONAL PHYSIOLOGICAL PHENOMENA; ANIMALS; CATTLE; DIGESTION; FEEDING BEHAVIOR; FEMALE; PARTICLE SIZE; RUMEN;

BOS;

EID: 77955022547     PISSN: 00220302     EISSN: 15253198     Source Type: Journal    
DOI: 10.3168/jds.2010-3094     Document Type: Article

References (9)

1. Method of determining and expressing particle size of chopped forage materials by screening. ANSI/ASAE 2007, S242.1:663-665. ASABE.
2. Beauchemin K.A., Rode L.M., Eliason M.V. Chewing activities and milk production of dairy cows fed alfalfa as hay, silage, or dried cubes of hay or silage. J. Dairy Sci. 1997, 80:324-333.
3. Hosseinkhani A., DeVries T.J., Proudfoot K.L., Valizadeh R., Veira D.M., von Keyserlingk M.A.G. The effects of feed bunk competition on the feed sorting behavior of close-up dry cows. J. Dairy Sci. 2008, 91:1115-1121.
4. Kenward M.G., Roger J.H. Small sample inference for fixed effects from restricted maximum likelihood. Biometrics 1997, 53:983-997.
5. Kononoff P.J., Heinrichs A.J., Lehman H.A. The effect of corn silage particle size on eating behavior, chewing activities, and rumen fermentation in lactating dairy cows. J. Dairy Sci. 2003, 86:3343-3353.
6. Leonardi C., Armentano L.E. Effect of quantity, quality, and length of alfalfa hay on selective consumption by dairy cows. J. Dairy Sci. 2003, 86:557-564.
7. Maulfair D.D., Zanton G.I., Fustini M., Heinrichs A.J. Effect of feed sorting on chewing behavior, production, and rumen fermentation in lactating dairy cows. J. Dairy Sci. 2010, 10.3168/jds.2010-3278.
8. Nutrient Requirements of Dairy Cattle 2001, NRC, Natl. Acad. Sci., Washington, DC. 7th rev. ed.
9. SAS User's Guide: Statistics 2006, SAS Institute, SAS Inst. Inc., Cary, NC, Version 9.1.3.