Table 4.

The effect of available lysine level on performance, killing out % and backfat thickness

	Analysed lysine values		SEM	p
	6.9 g/kg	8.2 g/kg
10 wks weight (kg)	29.0	28.9	0.043	NS
13 wks weight (kg)	39.7	39.9	0.189	NS
16 wks weight (kg)	53.9	55.0	0.328	<0.05
Finish weight (kg)	90.6	92.2	0.478	<0.05
Backfat thickness (mm)	10.0	10.0	0.094	NS
Killing out (%)	75.5	76.0	0.16	<0.05
Average daily feed intake (g/d)
10 to 13 wks	1,304	1,298	18.2	NS
10 to finish	1,921	1,889	12.1	NS
13 to 16 wks	1,711	1,671	19.5	NS
13 to finish	2,086	2,067	17.5	NS
16 to finish	2,308	2,295	17.0	NS
Average daily gain (g/d)
10 to 13 wks	535	556	9.22	NS
10 to finish	761	781	6.01	<0.05
13 to 16 wks	671	709	10.25	<0.05
13 to finish	840	860	6.91	<0.05
16 to finish	927	943	7.35	NS
Feed conversion ratio
10 to 13 wks	2.46	2.35	0.037	NS
10 to finish	2.53	2.42	0.015	<0.001
13 to 16 wks	2.58	2.37	0.029	<0.001
13 to finish	2.49	2.41	0.018	<0.01
16 to finish	2.49	2.37	0.018	<0.001