@article{MAKHILLJAVA20141314169,
    title = {Effect of Dietary Protein Levels on Rumen Metabolism and Milk Yield in Mid-Lactating Cows under Hot and Humid Conditions},
    journal = {Journal of Animal and Veterinary Advances},
    volume = {13},
    number = {1},
    pages = {9-14},
    year = {2014},
    issn = {1680-5593},
    doi = {javaa.2014.9.14},
    url = {https://makhillpublications.co/view-article.php?issn=1680-5593&doi=javaa.2014.9.14},
    author = {W.,J. Th.,A.,T.,J.,M.W.A. and},
    keywords = {Cattle,milk production,protein,rumen metabolism,dry matter},
    abstract = {An experiment was conducted to investigate the effects of 
  2 levels of dietary Crude Protein (CP) in concentrates with similar proportions 
  of Rumen Undegradable Protein (RUP) on rumen metabolism, milk yield and composition 
  in mid lactating cows in Thailand. Eight 87.5% Holsteinx12.5% indigenous multiparous 
  cows were used in a crossover design with two successive 25 days periods. Diets 
  contained 30% paragrass and 70% concentrate on a Dry Matter (DM) basis. Concentrate 
  feeds were formulated to provide low dietary CP (17.3%; LCP) or high dietary 
  CP (19.04%; HCP). The proportion of Rumen Degradable Protein (RDP) and RUP was 
  61 and 39% in both diets. Diets were isocaloric in terms of net energy for lactation. 
  Milk yield, milk lactose yield, Dry Matter Intake (DMI) and apparent digestibility 
  of DM, CP and Neutral Detergent Fiber (NDF) were greater in cows fed HCP than 
  in those fed LCP. Concentration of blood urea nitrogen was elevated in cows 
  fed HCP diets. Rumen NH<SUB>3</SUB>-N concentration and pH tended to increase 
  in cows fed HCP diet. Rumen microorganism counts and volatile fatty acids levels 
  in the rumen did not differ between treatments. The increasing CP content in 
  mid-lactating cow was beneficial to increase DMI, apparent digestibility of 
  DM, CP and NDF and therefore milk yield.}
    }