Applicability of an international linear appraisal system in Murciano-Granadina breed: fitting, zoometry correspondence inconsistencies, and improving strategies

Figures & data

Table 1. A detailed description of the scales used and the translation process from zoometric traits to Linear appraisal system (LAS) scores in Murciano-Granadina does and bucks.

Gender/Status	Major area	Linear trait	Zoometric scale/ categorical scale	Zoometric optimum scoring	Reference/ Middle point	LAS extrapolation	LAS optimum scoring
Primiparous/ Multiparous does	Structure and capacity	Stature (height to withers)	62–78 cm	72 cm (primiparous) and 74 cm (multiparous)	5 (70 cm)	1–9 points	6 (primiparous) and 7 (multiparous)
		Chest width	15–23 cm	20 cm (primiparous) and 21 cm (multiparous)	5 (19 cm)	1–9 points	6 (primiparous) and 7 (multiparous)
		Body depth	Shallow-Extremely deep	Intermediate	5 (elbow end matches rib depth)	1–9 points	7 (primiparous and multiparous)
		Rump width	13–21 cm	18 cm (primiparous) and 19 (multiparous)	5 (17 cm)	1–9 points	6 (primiparous) and 7 (multiparous)
		Rump angle	55°–31°	31°	5 (43°)	1–9 points	9
	Dairy structure	Angulosity	Angulous extremity-Rough extremity	Angulous extremity	5 (intermediate)	1–9 points	9
		Bone quality	Round and rough bones-flat and neat bones	Flat and neat bones	5 (intermediate)	1–9 points	9
	Mammary system	Anterior insertion	Weak-Strong	120°	5 (90°)	1–9 points	9
		Rear insertion height	11–3 cm	3 cm	5 (7 cm)	1–9 points	9
		Median suspensor ligament	1–9 cm	5 cm	5 (5 cm)	1–9 points	5
		Udder width	3–11 cm	11 cm	5 (7 cm)	1–9 points	9
		Udder depth	−10–10 cm	−5 cm (5 cm over hock level) and 0 cm (udder bottom at hock level)	5 (0 cm/at hock level)	1–9 points	3 (primiparous) and 5 (multiparous)
		Nipple placement	90°–0°	0°	5 (45°)	1–9 points	9
		Nipple diameter	0.5°–4.5°	2 cm	5 (2.5 cm)	1–9 points	4
	Legs aplomb	Rear legs rear view	Very close-parallel and separated	Parallel and separated	5 (slightly close)	1–9 points	9
		Rear legs side view	Straight-very curved	Desirable curvature. A short distance from an imaginary line to anterior curvature of hock	5 (desirable curvature)	1–9 points	5
		Mobility	Very bad mobility due to skeleton structure-long and strong, straight and uniform stride	Good mobility. Easy and harmonic movement	5 (moderate mobility)	1–9 points	9
Bucks	Structure and capacity	Stature (height to withers)	68–92 cm	83 cm (young) and 86 cm (adult)	5 (80 cm)	1–9 points	6 (young) and 7 (adult)
		Chest width	15–31 cm	25 cm (young) and 27 cm (adult)	5 (23 cm)	1–9 points	6 (young) and 7 (adult)
		Body depth^a	Shallow-extremely deep	Intermediate	5 (elbow end matches rib depth)	1–9 points	7 (young and adult)
		Rump width	14–22 cm	19 cm (young) and 20 cm (adult)	5 (18 cm)	1–9 points	6 (young) and 7 (adult)
		Rump angle	55–31°	31°	5 (43°)	1–9 points	9
	Dairy structure	Angulosity^a	Angulous extremity-Rough extremity	Angulous extremity	5 (intermediate)	1–9 points	9
		Bone quality^a	Round and rough bones-flat and neat bones	Flat and neat bones	5 (intermediate)	1–9 points	9
	Legs aplomb	Rear legs rear view^a	Very close-parallel and separated	Parallel and separated	5 (slightly close)	1–9 points	9
		Rear legs side view^a	Straight-Very curved	Desirable curvature. Short distance from an imaginary line to anterior curvature of hock	5 (desirable curvature)	1–9 points	5
		Mobility^a	Very bad mobility due to skeleton structure-long and strong, straight and uniform stride	Good mobility. Easy and harmonic movement	5 (moderate mobility)	1–9 points	9

^aSame criteria for males and females.

Table 2. Descriptive statistics, Kurtosis, Skewness for Murciano-Granadina Linear appraisal system (LAS) zoometric traits.

Sex/Status	Zoometric traits	N	Mode	Skewness	Std. error of skewness	Kurtosis	Std. error of kurtosis	Range	Percentiles
									25	50	75
Bucks	Stature (height to withers)	1485	9	0.180	0.064	−1.294	0.127	8	4	5	8
	Chest width	1485	9	0.044	0.064	−1.371	0.127	7	5	6	9
	Body depth	1485	6	0.135	0.064	−0.084	0.127	8	5	6	7
	Rump width	1485	6	0.054	0.064	0.388	0.127	7	5	6	6
	Rump angle	1485	6	0.169	0.064	1.147	0.127	7	5	6	6
	Angulosity	1485	5	−0.183	0.064	0.223	0.127	8	5	5	6
	Bone quality	1485	6	−0.342	0.064	−0.087	0.127	4	6	6	7
	Rear legs rear view	1485	7	−0.404	0.064	0.337	0.127	5	6	7	7
	Rear legs side view	1485	4	0.190	0.064	−0.211	0.127	6	3	4	4
	Mobility	1485	7	−1.897	0.064	15.222	0.127	7	7	7	7
Primiparous does	Stature (height to withers)	22727	3	0.511	0.016	0.366	0.032	8	2	3	4
	Chest width	22727	5	0.354	0.016	0.214	0.032	8	4	5	6
	Body depth	22727	6	−0.095	0.016	0.212	0.032	8	5	6	6
	Rump width	22727	5	−0.005	0.016	0.318	0.032	8	4	5	5
	Rump angle	22727	6	0.227	0.016	0.646	0.032	7	5	6	6
	Angulosity	22727	5	0.107	0.016	−0.097	0.032	8	4	5	6
	Bone quality	22727	7	−0.528	0.016	0.469	0.032	8	7	7	8
	Anterior insertion	22727	6	0.049	0.016	0.360	0.032	7	5	6	6
	Rear insertion height	22727	7	−0.372	0.016	0.185	0.032	7	6	6	7
	Median suspensor ligament	22727	3	0.758	0.016	1.647	0.032	8	3	3	4
	Udder width	22727	7	−0.099	0.016	−0.347	0.032	8	6	7	8
	Udder depth	22727	3	0.364	0.016	0.355	0.032	8	3	4	5
	Nipple placement	22727	6	−0.273	0.016	1.101	0.032	8	6	6	7
	Nipple diameter	22727	4	0.675	0.016	−0.045	0.032	8	4	5	6
	Rear legs rear view	22727	7	−0.372	0.016	0.388	0.032	8	6	7	7
	Rear legs side view	22727	3	0.269	0.016	−0.292	0.032	7	3	4	4
	Mobility	22727	7	−0.336	0.016	1.971	0.032	8	7	7	7
Multiparous does	Stature (height to withers)	17111	4	0.414	0.019	0.141	0.037	8	3	4	5
	Chest width	17111	6	−0.108	0.019	−0.121	0.037	8	5	6	7
	Body depth	17111	7	−0.482	0.019	0.501	0.037	8	6	6	7
	Rump width	17111	5	−0.030	0.019	0.263	0.037	7	5	5	6
	Rump angle	17111	6	0.165	0.019	0.388	0.037	7	5	6	6
	Angulosity	17111	6	−0.243	0.019	−0.264	0.037	7	5	6	7
	Bone quality	17111	7	−0.497	0.019	0.446	0.037	6	7	7	8
	Anterior insertion	17111	6	0.092	0.019	0.284	0.037	8	5	6	6
	Rear insertion height	17111	6	−0.589	0.019	0.694	0.037	8	5	6	7
	Median suspensor ligament	17111	3	0.491	0.019	−0.105	0.037	8	3	4	5
	Udder width	17111	7	−0.331	0.019	−0.113	0.037	6	7	7	8
	Udder depth	17111	5	−0.016	0.019	−0.452	0.037	8	5	5	7
	Nipple placement	17111	6	−0.044	0.019	0.339	0.037	8	6	6	7
	Nipple diameter	17111	4	0.949	0.019	0.016	0.037	7	4	4	6
	Rear legs rear view	17111	7	−0.476	0.019	0.958	0.037	8	6	6	7
	Rear legs side view	17111	3	−0.150	0.019	−0.755	0.037	7	3	4	5
	Mobility	17111	7	−0.363	0.019	2.159	0.037	8	6	7	7

Data availability statement

Data will be made available from the corresponding author F.J.N.G. upon reasonable request.