Use of zinc oxide nanoparticles in the growing rabbit diets to mitigate hot environmental conditions for sustainable production and improved meat quality

Table 4 Effects of ZnO-NPs on meat quality parameters of growing rabbits

Items	ZnO-NPs levels, mg/kg					SEM	P-Value
Items	0	20	40	60	80	SEM	Lin	Quad
Hind leg
WHC %	25.55^b	27.06^a	27.67^a	27.74^a	27.68^a	1.945	0.008	0.081
pH	5.734	5.741	5.753	5.723	5.726	0.582	0.143	0.916
TBARS	1.514^a	1.332^b	1.288^b	1.285^b	1.313^b	0.205	0.002	0.058
Protein %	21.56	21.85	21.99	22.12	21.97	0.264	0.077	0.631
Fat%	2.388	2.444	2.439	2.524	2.608	0.359	0.052	0.678
Moisture%	74.24	74.69	74.66	74.57	74.51	0.249	0.141	0.791
Zn, mg/kg	10.24	10.83	11.13	11.57	11.56	1.768	0.087	0.675
Loin
WHC %	24.55^b	26.76^a	27.16^a	28.24^a	27.25^a	0.687	0.021	0.032
pH	5.734	5.741	5.723	5.744	5.754	0.441	0.067	0.089
TBARS	1.624^a	1.412^b	1.410^b	1.395^b	1.413^b	0.045	0.006	0.079
Protein %	21.33	21.88	21.95	22.17	21.87	0.264	0.096	0.431
Fat%	5.578	5.674	5.635	5.575	5.618	0.247	0.674	0.897
Moisture%	72.44	72.55	72.43	72.45	72.51	0.376	0.434	0.989
Zn, mg/kg	9.567	10.34	11.06	11.32	11.45	1.345	0.098	0.567

^a-c Means (n = 25) not sharing a common superscript in a row are significantly different (P < 0.05). SEM standard error of means, Lin and Quad linear and quadratic responses, respectively, to supplementation levels ZnO-NPs, WHC water holding capacity, TBARS the thiobarbituric acid-reactive substances

ISSN: 1746-6148