262 Ability of Model that Predict Growing-Finishing Pigs Requirements to Predict Dietary Phosphorus Use in Replacement Gilts

Phosphorus Requirements in the Ration of Growing Pigs Phosphorus Requirements in the Ration of Growing Pigs

Digestible phosphorus needs of terminal-cross growing-finishing pigs.

Growth and digestion experiments were conducted to estimate the digestible P needs of terminal-cross growing-finishing pigs fed sorghum-soybean meal-based diets from 25 to 118 kg. Dietary available P levels approximated the levels recommended by the NRC (1988) or were approximately 25% above or below those levels. Up to 80 kg, dietary treatment did not affect performance; from 80 to 118 kg, the...

Modeling digestibility of dietary phosphorus in growing and finish pigs.

Low P digestibility combined with intensive pig production can lead to water pollution. The aim of this paper was to develop a model able to represent P digestion in pigs across diets and contribute towards the reduction of P excretion. Phosphorus in plant feedstuffs includes some nonphytate P (NPP) that is readily digested but is mostly as organic phytate P (oP) that is indigestible unless it ...

Estimating real-time individual amino acid requirements in growing- finishing pigs: towards a new definition of nutrient requirements in growing-finishing pigs?

1 Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, P.O. Box 90, 2000 Route, 108 East Lennoxville, Que., Canada J1M 1Z3; 2 Department of Agricultural Engineering, Universitat de Lleida, Alcalde Rovira Roure, 191, 25198 Lleida, Spain; 3 Centre de Développement du Porc du Québec inc., Sainte-Foy, Québec, G1V 4M7, Canada; 4 Département des sciences animales, Univer...

Diet Modification to Reduce Fecal Excretion of Nitrogen and Phosphorus in Growing-Finishing Pigs

An experiment was conducted to determine whether brewers rice can replace all corn in diets for swine and reduce fecal excretion of Nitrogen (N) and Phosphorus (P) without compromising performance and carcass quality of growing-finishing pigs. Sixteen Yorkshire x Duroc x Hampshire crosses (BW = 77±2.5 kg) were randomly assigned to either corn/soybean meal (CSM; control) or brewers rice/soybean ...