. 2021 Mar 15;100(7):101134. doi: 10.1016/j.psj.2021.101134

Table 7.

Effect of dietary spray-dried plasma on cumulative growth performance of broilers from day 1 to 42 (Experiment 2).

	Parameters measured²
Treatments¹	Body weight gain (BWG, kg/bird)³	Feed intake (FI, kg/bird)	FCR⁴ (Kg:Kg)
CON	2.35^b	3.54^ab	1.511^abc
BMD	2.40^b	3.46^ab	1.442^dc
SDP	2.23^b	3.23^b	1.455^bc
CON-SE	2.54^ab	4.00^a	1.581^ab
BMD-SE	2.92^a	3.83^ab	1.311^d
SDP-SE	2.17^b	3.48^ab	1.606^a

P-value	0.0030	0.0113	0.0001
Pooled SEM (24)	0.104	0.126	0.029
Diet effect means
CON	2.44^ab	3.77^a	1.546^a
BMD	2.66^a	3.65^ab	1.377^b
SDP	2.20^b	3.35^b	1.531^a
Pooled SEM	0.073	0.089	0.020
Salmonellachallenge effect means
NC⁵	2.33^b	3.41^b	1.470
SE	2.54^a	3.77^a	1.500
Pooled SEM	0.060	0.073	0.017
Sources of variation	Probability
Dietary treatment	0.0028	0.0171	0.0001
Challenge¹	0.0250	0.0045	NS
Diet x Challenge	0.0490	NS	0.0012

^a-dMean values bearing different superscript letters within a column are significantly different (P < 0.05).

Treatment CON consisted of chicks fed unmedicated corn-soybean meal (SBM) basal without SDP; Treatment BMD consisted of chicks given unmedicated corn-SBM basal into which bacitracin methylene disalicylate (BMD) was added at 0.055 g/kg diet; Treatment SDP consisted of chicks given unmedicated corn-SBM basal into which SDP was added at 30 g/kg diet; Treatments CON-SE, BMD-SE, and SDP-SE, consisted of chicks that were given diets similar to CON, BMD, and SDP, respectively, and were each inoculated with 7.48 × 10⁸ CFU Salmonella Enteritidis /mL at 1 d of age.

Values represent the mean of 4 replicate pens per treatment.

Values are based only on weight of live birds.

⁴

FCR = feed conversion ratio calculated as feed-to-gain ratio and adjusted for mortality by including the gains of dead birds in the calculations.

⁵

NC = non-challenged treatments. This represents pooled mean of treatments in which chicks were not challenged with Salmonella spp. These treatments are CON, BMD, and SDP. NS, not significant.