Diets consisted of 50% forage and 50% concentrate (dry matter basis) and were formulated to contain 15.00, 16.25, 17.50, or 18.75% protein in each trial.
The dietary protein of feed in the present study was formulated to contain 35 36% crude protein based on the requirement of whiteleg shrimp (Xia et al. 2010; Shahkar et al. 2014).
Cows were fed rations formulated to contain 50 50 forage:concentrate ratio.
Concentrates were formulated to comprise 220.0 g/kg CP independent of treatments.
A standard-protein control diet (SP-C) was formulated to provide 3,100 g/d of metabolizable protein (MP).
Four experimental diets A, B, C and D were formulated to contain RDP RUP of 70 30, 65 35, 60 40 and 55 45, respectively.
Four diets were formulated to be isoenergetic (17.58 kJ g−1) and isonitrogenous (30% crude protein).
Diets were formulated to contain a 50 50 forage:concentrate ratio [dry matter (DM) basis] and be isonitrogenous and contain equal levels of neutral detergent fiber (320 g/kg).
The basal diet was formulated to meet National Research Council NRCC, 2001) requirements for energy and all nutrients except rumen-degradable protein (RDP) and metabolizable protein.
Pigs were fed either a corn soybean meal basal diet formulated to meet NRC (1998) (Nutrient Requirements of Swine, 10th ed. National Academic Press, Washington, DC) nutrient requirements for 50 to 80 kg pigs or the basal diet with a portion of the corn and soybean meal replaced by 200 g/kg SPCC.
All dentifrices currently marketed in the US are formulated to contain either 1000 or 1100 ppm F, mostly in the form of NaF and MFP.
