Carcase and meat quality of Blanca Andaluza kids fed exclusively with milk from their dams under organic and conventional grazing-based management systems

Figures & data

Table 1. Contribution of the weight of the kids' non-carcase components (means, expressed as a percentage of empty body weight) according to production system.

Item	Production system		SEM^a	Significance^b
	Conventional (n = 24)	Organic (n = 24)
Blood	5.35	5.02	0.08	**
Skin	10.48	10.51	0.12	ns
Head	6.87	7.53	0.13	*
Feet	5.02	4.62	0.06	*
Heart	0.63	0.53	0.01	***
Lungs + trachea	1.74	1.78	0.04	ns
Liver	2.45	2.17	0.04	**
Spleen	0.27	0.24	0.01	*
Thymus	0.14	0.20	0.01	ns
Gastro intestinal tract	10.56	10.30	0.31	ns

^aStandard error of mean.

^bns = not significant (p > .05).

*p < .05; **p < .01; ***p < .001.

Table 2. Meat colour at 24 h post-slaughter according to production system.

Variable^a	Production system		SEM^b	Significance
	Conventional (n = 24)	Organic (n = 24)
L*	45.97	39.94	0.83	***
a*	7.62	8.83	0.27	*
b*	10.28	6.95	0.51	**
Chroma	13.02	11.63	0.35	*
Hue (°)	52.84	35.03	2.38	***

^aL*: luminosity; a*: red index; b*: yellowness index; chroma = (a*²+b*²)^0.5; Hue (°) = Tan⁻¹(b*/a*) expressed in degrees (CIE 1986).

^bStandard error of mean.

*p < .05; **p < .01; ***p < .001.

Table 3. Discriminant functions and classification matrix resulting from discriminant analysis.

Evaluating discriminant function
Function	Eigenvalue	% Explained variance	Canonical correlation	Wilks' lambda	Chi-square	df^a	Significance
1	12.97	100.00	0.96	0.07	109.40	9.00	***
Classification matrix: assignment (columns) against real data (rows)
	Predicted group (%)
Group	Conventional	Organic
Conventional	100.00	0.00
Organic	0.00	100.00

^aDegrees of freedom.

***p < .001.

CIE. 1986. Comisión Internationale de l´Eclairage. Colorimetry. 2nd ed. Vienna: Publication 15.2.

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