Concerted phenotypic flexibility of avian erythrocyte size and number in response to dietary anthocyanin supplementation

Table 1 Results of ANCOVA models for main effects of Diet and Flight and their interaction and Date of sampling as a covariate on haematological variables

Trait	Diet		Flight		Diet × flight		Date of sampling
Trait	F	p	F	p	F	p	F	p
Hct	0.014	0.908	0.020	0.890	0.404	0.531	6.898	0.015
Hb	0.143	0.708	0.247	0.623	5.026	0.034	4.561	0.043
RBC_count	18.494	< 0.001	0.011	0.916	0.168	0.685	7.433	0.012
RBC_area	12.794	0.001	0.436	0.515	0.362	0.553	0.485	0.493
MCH	15.091	0.001	0.048	0.828	1.658	0.210	2.097	0.160
MCHC	0.113	0.740	0.533	0.472	1.841	0.187	1.632	0.213
MCV	26.639	< 0.001	0.202	0.657	0.054	0.818	0.245	0.625
SA:V	16.200	< 0.001	0.399	0.533	0.257	0.617	0.053	0.821
TSAE	8.945	0.006	0.114	0.738	0.044	0.836	5.949	0.022
Hb:TSAE	8.478	0.007	0.002	0.962	2.556	0.122	1.531	0.228
RBC_major	0.063	0.803	0.000	0.999	1.480	0.235	0.035	0.852
RBC_minor	15.549	0.001	3.383	0.078	0.025	0.876	0.025	0.877
RBC_ar	5.584	0.026	1.094	0.306	0.737	0.399	0.057	0.813
RBC_circ	17.305	< 0.001	3.253	0.083	0.215	0.647	0.098	0.757

The numerator and denominator degrees of freedom were 1 and 25 respectively for all inference tests
Statistically significant p-values are indicated in bold
Hct Haematocrit, Hb Haemoglobin content, RBC_count Red blood cell number, RBC_area Red blood cell surface area, MCH Mean corpuscular haemoglobin, MCHC Mean corpuscular haemoglobin content, MCV Mean cell volume, SA:V Surface-area-to-volume ratio, TSAE Total surface area of erythrocytes, Hb:TSAE Haemoglobin-to-TSAE ratio, RBC_major RBC major axis length, RBC_minor RBC minor axis length, RBC_ar RBC aspect ratio, RBC_circ RBC circularity

ISSN: 1742-9994