One hundred fourteen high-lean growth gilts (72.5 kg BW) were used to determine the apparent digestible lysine requirement for maximum growth performance and carcass protein deposition rate from 72.5 to 136 kg BW. The experiment was a randomized complete block design with initial BW used to establish blocks. Six dietary treatments were included, ranging from .44 to .94% (.10% increments) appare...

The major consideration in this paper is the suitability of a metabolizable energy system for pigs. For poultry there is no practical alternative since urine and faeces are voided conjointly. The correction to digestible energy of a feedstuff for energy in urine is usually small, but there are circumstances when this may be large. Furthermore there are insufficient data on metabolizable energy ...

The energy values of iirtiatte-ans (Phaseolus lunatus) as affected by different processing treatments were determined. Average gains in body weight 17.38g for raw limabeans 48.07g cooked, 36.91g autoclaved, 32.57g soaked and 31.12g germinated beans. Feed conversion efficiency was signicantly improved the poore­st obtained lima-beans. Digestible (DE) metabolizable (ME) highly positively corre­la...

A model to predict voluntary water intake (WI) of a pig fed a known diet in a known environment is described. The daily retentions of protein, lipid, water and ash were estimated over time using a published pig growth model. Food intakes were estimated using published methods. WI was estimated by adding the amounts required for digestion (WD), faecal excretion (Wfec), growth (WG), evaporation (...