. 2020 Dec 24;100(3):100962. doi: 10.1016/j.psj.2020.12.059

Table 6.

Effect of total replacement of inorganic P by PhyG with or without xylanase, on growth performance of broilers fed high phytate (>0.3% phytate P), Ca-reduced diets; trial 1 (mixed males and females).

	PC1	IPF1	IPF2	IPF3	IPF4	SEM	P-value¹
Starter, day 0–10
Day 10 BW, g/bird	283.9	285.4	283.5	291.9	290.6	2.72	0.101
ADG, g/bird	24.57^b	25.25^b	25.49^b	27.22^a	26.03^a,b	0.421	0.001
ADFI, g/bird	27.87^b	28.21^a,b	28.82^a,b	30.09^a	28.91^a,b	0.496	0.032
FCR, g:g	1.134	1.117	1.130	1.106	1.110	0.007	0.041
Grower, day 10–21
ADG, g/bird	62.42	61.75	61.72	64.49	63.56	0.847	0.111
ADFI, g/bird	87.61	88.90	88.41	90.47	91.54	0.988	0.049
FCR, g:g	1.404	1.440	1.433	1.404	1.442	0.010	0.015
Cumulative, day 0–21
Day 21 BW, g/bird	966.3^a,b	959.8^a,b	956.1^b	999.8^a	987.1^a,b	10.75	0.027
ADG, g/bird	44.02	43.04	43.05	44.67	43.62	0.556	0.217
ADFI, g/bird	58.71	58.28	58.24	59.17	59.02	0.695	0.834
FCR, g:g	1.334	1.354	1.353	1.325	1.353	0.007	0.017
Finisher 1, day 21–35
ADG, g/bird	88.88	90.81	89.78	92.69	89.51	1.975	0.688
ADFI, g/bird	152.2	153.6	155.7	155.3	149.3	2.37	0.314
FCR, g:g	1.717^a,b	1.694^a,b	1.737^a	1.677^a,b	1.669^b	0.017	0.034
Cumulative, day 0–35
Day 35 BW, g/bird	2,220	2,239	2,227	2,306	2,248	32.8	0.371
ADG, g/bird	55.78	54.72	54.40	56.46	54.15	0.827	0.249
ADFI, g/bird	85.49	83.83	84.52	85.12	82.08	1.129	0.245
FCR, g:g	1.534^a,b	1.532^a,b	1.554^a	1.508^b	1.516^b	0.009	0.006
FCRc, g:g²	1.534^a,b	1.527^a,b	1.552^a	1.482^b	1.508^a,b	0.015	0.025
Day 35 BW, % breeders' performance objective³	103.5	104.4	103.9	107.6	104.9
Day 35 FCR, % breeders' performance objective³	100.9	101.0	99.6	102.6	102.1
Finisher 2, day 35–42
ADG, g/bird	74.18	89.17	82.05	93.71	88.53	5.4	0.119
ADFI, g/bird	185.2	201.9	199.3	207.6	195.9	5.46	0.072
FCR, g:g²	2.591	2.282	2.513	2.263	2.247	0.102	0.059
Overall, day 0–42
Day 42 BW, g/bird	2,770	2,872	2,836	2,984	2,886	60.9	0.182
ADG, g/bird	61.63	63.70	62.15	65.46	63.71	1.255	0.237
ADFI, g/bird	104.9	107.0	106.8	108.2	105.5	1.45	0.525
FCR, g:g	1.705^a,b	1.681^a,b	1.721^a	1.654^b	1.658^b	0.016	0.014
FCRc², g:g	1.705^a	1.650^a,b	1.701^a,b	1.590^b	1.623^a,b	0.028	0.025
Day 42 BW, % breeders' performance objective³	98.6	102.2	101.0	106.2	104.9
Day 42 FCR, % breeders' performance objective³	98.9	100.4	98.0	101.9	101.7
Feed cost, USD/kg BWG	0.507	0.479	0.476	0.475	0.474

^a,bMeans in the same row with no common superscripts are significantly different at a probability level of P < 0.05.

All parameters are corrected for mortality.

Abbreviation: IPF, inorganic-P-free.

Displayed P values < 0.05 without superscripts next to associated means indicates a statistically significant ANOVA result but nonsignificance from means separation using Tukey's honest significant difference test, at P < 0.05.

FCRc: body weight corrected FCR, calculated by correction of FCR values by 3 points per 100g of BW difference from the PC.

Breeder's objective: Ross 308/Ross 308 FF broiler: performance objectives; Aviagen 2014b.