Table 1.

Raw data collected in July 2017 from horses and ponies at Aktivstall Mauerbach, Austria

Horse ID and gender	Age	Gender	Rank index	Social index	Total affiliative approaches and interactions	Left side affiliative approaches and interactions	Affiliative laterality index	*p < 0.05, **p < 0.01
Group 1: riding horses
Alia	13	Mare	0.86	− 0.17	22	12	− 0.09
Amaluna	2	Mare	0.17	0.89	102	55	− 0.08
Annie	19	Mare	0.32	0.76	87	58	− 0.33	**
Bayladora	6	Mare	0.45	0.26	29	21	− 0.45	*
Baika	22	Mare	0.55	− 0.30	31	21	− 0.35	*
Billy	14	Gelding	0.83	− 0.45	16	10	− 0.25
Eco	11	Gelding	0.95	0.45	103	58	− 0.13
Kyakur	15	Gelding	0.25	0.87	119	64	− 0.08
Moon	16	Gelding	0.37	0.75	48	29	− 0.21
Sharon	2	Mare	0.02	0.94	96	61	− 0.27	**
Group 2: mini-pony mares and foals
Zenith	11	Mare	0.93	0.75	47	27	− 0.15
Cioca Tino	6 months	Colt	0.25	0.96	102	59	− 0.16
Magreeth	20	Mare	1.00	0.66	29	14	0.03
Cinne Bun	3 months	Filly	0.22	0.97	134	83	− 0.24	**
Sita	15	Mare	0.59	0.68	48	26	− 0.08
Buttercup	4 months	Filly	0.47	0.92	136	82	− 0.21	*
Tiramisu	1	Mare	0.14	0.78	41	25	− 0.23
Sara Jane	7	Mare	0.65	0.56	21	11	− 0.05
Group 3: mini-pony harem
Versace	9	Stallion	0.85	0.35	21	12	− 0.14
Sun Suena	3	Mare	0.26	0.67	61	34	− 0.11
Funny Honey	3	Mare	0.19	0.80	80	50	− 0.25	*
Andromeda	3	Mare	0.72	0.24	50	28	− 0.12
Dusky	3	Mare	0.29	0.64	54	32	− 0.19
Blissful	3	Mare	0.08	0.88	47	27	− 0.15
Goldie	7	Mare	0.81	0.28	66	41	− 0.24	*
Mascara	14	Mare	0.88	0.27	54	32	− 0.19
Group 4: mini-pony stallions and colts
Horatio	20	Stallion	0.40	0.90	59	32	− 0.08
Versace	9	Stallion	0.90	0.82	71	46	− 0.30	**
Amasonic	10	Stallion	0.83	0.85	63	28	− 0.11
Frappuccino	1	Colt	0.11	0.98	100	49	− 0.02
Toffee Popcorn	1	Colt	0.00	1.00	106	57	− 0.08

Bold type shows significant values