Nutritional Effects of Three Mulberry Varieties on Silkworms in Torbat Heydarieh

Table 3

Mean of shell parameters and some of the nutritional indices of silkworm hybrid treated with three varieties of mulberry leaves.

Tree variety	Shell weight (g)	Shell percentage	Shell ECI (%)	Shell ECD (%)	Cocoon ECD (g)	Cocoon ECI (g)
Kenmochi	0.41	25.23^a	9.02^a	16.46	26.08	14.29^a
Native	0.41	25.91^a	7.66^b	19.03	29.38	11.82^b
Black berry	0.36	23.89^b	6.54^b	17.67	29.57	10.94^b
CV	6.67	2.20	7.68	7.49	5.74	5.30
Mean ± SE	0.39 ± 0.03	25.01 ± 0.55	7.74 ± 0.59	17.72 ± 1.33	28.34 ± 0.65	12.35 ± 0.65
F	2.00	5.90	6.93	1.82	3.12	11.37
	0.2593	0.057	0.0437	0.2888	0.1479	0.0186

^a,bValues in the same column with different superscripts differ significantly at .