Supplementation of biofloc in carp (Cyprinus carpio var. Communis) culture as a potential tool of resource management in aquaculture

Special Issue - Ecological intensification: A new paragon for sustainable aquaculture

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Table 7

Microbial populations in the both experiments E1 and E2.

Mean ± Standard Error [CFU (No × 10³ ml⁻¹)]

System		T1E1	T2E1	T3E1	C2E1	T1E2	T2E2	T2E2	C2E2	C1
Water	¹THB	6.97 ± 0.55ⁱ	6.30 ± 0.46^g	5.14 ± 0.28^d	4.20 ± 0.22^b	6.16 ± 0.56^g	5.59 ± 0.47^f	4.41 ± 0.21^c	3.75 ± 0.41^a	5.34 ± 0.19^e
	²AB	4.44 ± 0.48^f	3.66 ± 0.39^e	2.99 ± 0.27^c	2.37 ± 0.23^b	3.93 ± 0.45^e	3.27 ± 0.43^d	2.40 ± 0.24^b	1.88 ± 0.15^a	3.01 ± 0.28^c
	³AOB	5.67 ± 0.56^h	4.73 ± 0.41^g	3.93 ± 0.32^e	3.05 ± 0.15^b	4.32 ± 0.55^f	3.69 ± 0.55^d	3.17 ± 0.34^b	2.21 ± 0.14^a	3.36 ± 0.21^c
	⁴NFB	5.31 ± 0.55^f	4.17 ± 0.37^e	3.57 ± 0.32^d	2.65 ± 0.65^b	3.85 ± 0.36^d	3.23 ± 0.32^c	2.91 ± 0.28^b	2.32 ± 0.23^a	3.72 ± 0.23^d
	⁵DNB	5.37 ± 0.47^f	4.59 ± 0.38^e	3.90 ± 0.28^d	3.34 ± 0.26^c	4.10 ± 0.40^d	3.36 ± 0.31^c	3.00 ± 0.22^b	2.71 ± 0.08^a	4.05 ± 0.35^d
	⁶CDB	5.81 ± 0.56^g	5.17 ± 0.49^f	4.15 ± 0.26^d	3.27 ± 0.17^a	5.34 ± 0.46^f	4.72 ± 0.42^e	3.99 ± 0.33^c	3.43 ± 3.43^b	3.98 ± 0.32^c
	⁷PSB	4.88 ± 0.55^g	4.28 ± 0.43^f	3.54 ± 0.31^d	2.49 ± 0.19^a	4.11 ± 0.43^e	3.61 ± 0.39^d	2.90 ± 0.25^b	2.43 ± 0.26^a	3.36 ± 0.36^c
Soil	¹THB	7.45 ± 0.65^g	6.89 ± 0.57^f	5.57 ± 0.39^c	4.43 ± 4.43^b	6.21 ± 0.76^e	5.65 ± 0.72^c	4.43 ± 0.40^b	3.90 ± 0.24^a	5.88 ± 0.51^d
	²AB	4.99 ± 0.35^h	4.46 ± 0.26^f	3.87 ± 0.19^c	3.30 ± 0.19^a	4.59 ± 0.29^g	4.23 ± 0.21^e	3.69 ± 0.13^b	3.25 ± 0.16^a	4.03 ± 0.21^d
	³AOB	6.27 ± 0.45^h	5.04 ± 0.29^f	4.28 ± 0.16^d	3.39 ± 0.15^b	5.46 ± 0.38^g	4.69 ± 0.29^e	3.55 ± 0.13^c	3.06 ± 0.20^a	4.24 ± 0.19^d
	⁴NFB	6.23 ± 0.46^h	5.40 ± 0.34^g	4.26 ± 0.21^d	3.73 ± 0.19^c	4.88 ± 0.35^f	4.16 ± 0.22^d	3.48 ± 0.08^b	3.15 ± 0.11^a	4.30 ± 0.21^e
	⁵DNB	6.13 ± 0.46^g	5.24 ± 0.33^f	4.08 ± 0.24^e	3.57 ± 0.24^c	4.64 ± 0.34^e	3.97 ± 0.25^d	3.31 ± 0.15^b	2.93 ± 0.09^a	4.13 ± 0.17^e
	⁶CDB	5.84 ± 0.55^h	5.24 ± 0.43^f	4.26 ± 0.21^d	3.31 ± 0.12^a	5.52 ± 0.42^g	4.90 ± 0.31^e	3.90 ± 0.18^c	3.50 ± 0.19^b	3.94 ± 0.24^c
	⁷PSB	5.40 ± 0.52^h	5.04 ± 0.47^g	4.17 ± 0.36^e	3.41 ± 0.25^b	5.51 ± 0.45ⁱ	4.72 ± 0.37^f	3.60 ± 0.22^c	3.07 ± 0.21^a	3.90 ± 0.32^d

Note: Means superscripted with different letters in each row are significantly different (P < 0.05).

Abbreviation: ¹THB [CFU (No × 10³ ml⁻¹)], Total heterotrophic bacteria; ²AB [CFU (No × 10³ ml⁻¹)], Ammonifying bacteria; ³AOB [CFU (No × 10³ ml⁻¹)], Ammonia oxidizing bacteria; ⁴NFB [CFU (No × 10³ ml⁻¹)], Nitrogen fixing bacteria; ⁵DNB [CFU (No × 10³ ml⁻¹)], Denitrifying bacteria; ⁶CDB [CFU (No × 10³ ml⁻¹)], Cellulose decomposing bacteria; ⁷PSB [CFU (No × 10³ ml⁻¹)], Phosphate solubilizing bacteria).

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