. 2019 Dec 16;9(12):1154. doi: 10.3390/ani9121154

Table 7.

Retention (%) in vitamin B₆ activity in different storage periods for vitamin and vitamin/trace mineral (VTM) premixes ¹.

Items	Choline	Cu and Zn	Months (Time)					SEM	p-Time
Items	Choline	Cu and Zn	1	2	3	6	12	SEM	p-Time
Vitamin premix 1	-	-	98.66	97.82	96.79	95.78	95.33	1.17	0.221
Vitamin premix 2	+	-	97.26 ^a	96.73 ^a	95.40 ^a	97.30 ^a	92.17 ^b	0.69	<0.01
		SEM	0.88	0.56	0.86	0.99	1.53
	p-Choline		0.288	0.176	0.057	0.304	0.018
VTM premix 1	-	Low	99.01 ^a	98.00 ^ab	97.13 ^ab	93.68 ^bc	90.86 ^c	1.18	<0.01
VTM premix 2	+	Low	98.96 ^a	97.21 ^ab	97.77 ^a	94.96 ^a	90.26 ^b	1.06	<0.01
VTM premix 3	-	High	98.86 ^a	98.36 ^a	96.79 ^ab	93.69 ^ab	91.01 ^b	1.47	<0.01
VTM premix 4	+	High	98.84 ^a	98.24 ^a	97.82 ^ab	93.31 ^bc	91.38 ^c	1.15	<0.01
		SEM	0.36	1.67	1.80	1.08	0.43
	Main effects
	Choline	-	98.93	98.18	96.96	93.68	90.94
	Choline	+	98.90	97.72	97.79	94.14	90.82
	Cu and Zn	Low	98.98	97.60	97.45	94.32	90.56
	Cu and Zn	High	98.85	98.30	97.31	93.50	91.19
	p-value
	Choline		0.928	0.787	0.649	0.679	0.789
	Cu and Zn		0.714	0.682	0.938	0.458	0.157
	Choline x Cu and Zn		0.971	0.844	0.916	0.451	0.273

¹ Vitamin premix 1 contained no choline chloride, whereas Vitamin premix 2 contained 160,000 mg/kg of choline chloride. VTM premix 1 contained 500 mg/kg of CuSO₄ and 8000 mg/kg of ZnO, and VTM premix 2 contained 40,000 mg/kg of choline chloride, 500 mg/kg of CuSO₄ and 8000 mg/kg of ZnO. VTM premix 3 contained 20,000 mg/kg of CuSO₄ and 225,000 mg/kg of ZnO. VTM premix 4 contained 40,000 mg/kg of choline chloride, 20,000 mg/kg of CuSO₄ and 225,000 mg/kg of ZnO. ^{a, b, c} Means in a row, with different superscripts, are different (p < 0.05).