Erratum: Rufino-Moya, P.J., et al. Methane Production of Fresh Sainfoin, with or without PEG, and Fresh Alfalfa at Different Stages of Maturity is Similar, but the Fermentation End Products Vary. Animals 2019, 9, 197

The authors wish to make the following correction to their paper [1].

In

Table 2. Effect of the substrate (S) and the stage of maturity ¹ (SM) on gas and methane production (CH₄), potential gas production (A), rate of gas production (c), in vitro organic matter degradability (IVOMD), ammonia (NH₃-N), and volatile fatty acids (VFAs).

	Alfalfa			Sainfoin			Sainfoin+PEG				P-values
Item	VEG	Start-F	End-F	VEG	Start-F	End-F	VEG	Start-F	End-F	r.s.d.2	S	SM	SxSM
pH	6.42 a	6.44 a	6.41 a	6.35 bx	6.32 by	6.33 by	6.37 bx	6.31 bz	6.34 by	0.032	< 0.001	0.002	0.01
Gas production (mL/g dOM 3)	179	184	188	183	163	181	180	199	173	26.5	0.43	0.97	0.12
A (mL)	68 x	67 bxy	62 y	63 y	74 bx	70 x	65 y	78 ax	67 y	5.7	0.01	< 0.001	< 0.001
c (h−1)	0.2 a	0.22 a	0.19	0.14 by	0.16 bxy	0.19 y	0.15 bx	0.15 bx	0.19 y	0.037	< 0.001	0.02	0.05
CH4 production (mL/g dOM 3)	37	38	39	37	33	38	37	39	36	5.0	0.29	0.73	0.17
CH4:gas (%)	14.5	14.2	14.1	14.1 xy	13.4 y	14.8 x	14.5	14.4	14.4	0.88	0.35	0.13	0.11
IVOMD (%)	85.13 bx	83.73 bx	76.97 by	84.97 by	92.59 ax	85.58 ay	86.81 ay	93.59 ax	86.41 ay	1.692	< 0.001	< 0.001	< 0.001
NH3-N (mg/L)	240 a	247 a	210	206 b	184 b	201	242 a	234 a	215	31.7	< 0.001	0.06	0.20
Total VFAs (mmol/L)	102 xy	105 x	97 y	96 y	103 x	101 xy	99 y	105 x	102 xy	7.1	0.61	0.02	0.35
Acetic acid (C2) (mol/100 mol)	63.1 cy	63.9 bx	64.0 bx	65.4 ay	66.5 ax	66.3 ax	63.9 by	64.6 bx	64.5 bx	0.76	< 0.001	< 0.001	0.95
Propionic acid (C3) (mol/100 mol)	15.5 a	15.3 a	15.3 a	15 bx	14.5 cy	14.5 by	15.3 ax	14.9 by	15.2 ax	0.28	< 0.001	< 0.001	0.09
Butyric acid (mol/100 mol)	13.0 a	12.6 a	12.6 a	12.1c	12.2 b	12 b	12.5 b	12.8 a	12.4 a	0.45	< 0.001	0.20	0.16
Iso-butyric acid (mol/100 mol)	1.97 ax	1.91 axy	1.87 ay	1.82 bx	1.68 by	1.72 by	1.97 ax	1.83 ay	1.84 ay	0.100	< 0.001	< 0.001	0.63
Valeric acid (mol/100 mol)	2.14 axy	2.09 ay	2.22 ax	1.87 bx	1.7 cy	1.83 cx	2.12 ay	1.95 bx	2.04 by	0.107	< 0.001	< 0.001	0.11
Iso-valeric acid (mol/100 mol)	4.27 ax	4.09 axy	4.04 ay	3.87 bx	3.5 by	3.65 by	4.19 ax	3.91 ay	3.93 ay	0.223	< 0.001	< 0.001	0.69
C2:C3 (mol/mol)	4.1 cy	4.18 cxy	4.2 bx	4.39 ay	4.62 ax	4.59 ax	4.18 by	4.36 bx	4.25 by	0.109	< 0.001	< 0.001	0.13
CH4:VFA (mL/mol)	2.41	2.24 b	2.35	2.53	2.22 b	2.48	2.62	2.73 a	2.4	0.313	0.01	0.26	0.10

¹ VEG: vegetative; Start-F: start of flowering; End-F: end of flowering; ² residual standard deviation; ³ degraded organic matter. Within a parameter, means with different superscript (a,b,c) differ at P < 0.05 for the substrate effect in each stage of maturity; with different superscript (x,y,z) at P < 0.05 for the stage of maturity effect in each substrate.

, the production of methane in alfalfa at the start-flowering should be 38 mL/g dOM and not 3 mL/g dOM.

The authors would like to apologize for any inconvenience caused.