Effects of mannan oligosaccharide dietary supplementation on mortality, growth performance and carcass traits in meat Guinea pigs

Figures & data

Table 1. Chemical composition and additives of the forage (Medicago sativa L.) and the different pellet diets³.

	Forage	Control^c	MOS 1.5	MOS 2	AGP
Dry matter (% as fed)	21.9	87.0	87.0	87.0	87.0
Neutral detergent fibre, % in DM	38.3	33.0	33.0	33.0	33.0
Acid detergent fibre, % in DM	30.7	22.0	22.0	22.0	22.0
Crude protein, % in DM	19.8	15.0	15.0	15.0	15.0
Crude fibre, % in DM	27.2	8.0	8.0	8.0	8.0
Ether extract, % in DM	2.8	4.0	4.0	4.0	4.0
Gross Energy, MJ/Kg	18.7	17	17	17	17
MOS^a	–	–	1.5	2.0	–
AGP^b	–	–	–	–	0.1

^aMOS = Mannan Oligosaccharide (Bio-Mos®, Alltech, USA).

MOS-1.5 and MOS-2.0 = groups supplemented with MOS (Bio-Mos®, Alltech, USA) at 1.5 and 2.0 g/kg, respectively.

^bAGP = 0.1 g kg⁻¹ Zn-Bacitracin obtained adding 2 g kg−1 of Bacikern 50 (Laboratorios Calier, SA).

^cValue based on the information by manufacture.

Table 2. Descriptive statistics for growth traits.

Items^a	Mean	SD^b	Maximum	Minimum
BW28	507.6	48.9	712.3	454.0
BW77	1105.0	83.3	1342.7	895.5
ADG77-28	11.4	1.0	14.5	8.1
FI77-28	38.8	3.8	45.0	33.2
DMI77-28	14.4	2.9	18.2	9.9
FCR77-28	3.8	0.7	3.0	4.6

^aBW₂₈= body weight at weaning (day 28, g).

BW₇₇= body weight at slaughter (day 77, g).

ADG_77-28= average daily gain for the whole fattening period (g/d).

FI_77-28= individual feed intake for the whole fattening period (g/d).

DMI_77-28= dry mater intake of forage (Medicago sativa) for the whole fattening period (g/d).

FCR_77-28= feed conversion ratio for the whole fattening period.

^bSD = standard deviation

Table 3. Descriptive statistics for carcass traits.

Items^a	Mean	SD^b	Maximum	Minimum
LWS	955.3	90.3	1230.0	623.9
FGTW	269.2	23.4	357.2	178.5
HCW	676.3	89.2	945.0	402.7
CCW	672.4	89.1	935.6	399.0
DLP	3.0	0.7	5.9	1.1
DCY	70.3	2.4	78.7	63.1

^aLWS = live weight at slaughter after transport and fasting (g).

FGTW = full gastrointestinal tract weight (g).

HCW = hot carcass weight (g).

CCW = cold carcass weight (g).

DLP = drip loss percentage (%).

DCY = dressing out carcass yield percentage (%).

^bSD = standard deviation.

Table 4. Least square means (standard error) of the dietary supplementation diet on growth traits.

Groups^2	Item^1
	BW	ADG	FI	DMI	FCR
Control	990.1(101.1)^a	6.1(1.3)^a	30.2 (4.2)^a	12.6(3.3)^a	3.9 (1.2)^a
MOS 1.5	1152.3(99.4)^a	11.7(1.1)^b	47.3(4.0)^b	15.1(3.1)^a	3.7 (1.1)^a
MOS 2.0	1163.2(100.2)^a	11.9(1.1)^b	47.9(4.1)^b	14.9(3.2)^a	3.7 (1.1)^a
AGP	1203.4(99.3)^a	12.1(1.1)^b	48.2(4.0)^b	15.8(3.2)^a	3.8 (1.1)^a

¹BW = body weight (g) at the end of the complete fattening period.

ADG = average daily gain (g/d).

FI = individual feed intake (g/d).

DMI = dry mater intake of forage (Medicago sativa) (g/d).

FCR = feed conversion ratio.

²Control = group without supplement.

MOS-1.5 and MOS-2.0 = groups supplemented with MOS (Bio-Mos®, Alltech, USA) at 1.5 and 2.0 g/kg, respectively.

^abMean in the same column with the same superscript do not differ significantly (significant difference at P < 0.05).

Table 5. Least square means (standard error) of the dietary supplementation diet on carcass traits.

Groups^2	Items^1
	LWS	FGTW	HCW	CCW	DLP	DCY
Control	890.5(94.2)^a	229.6(24.2)^a	640.1 (91.4)^a	637.3(94.2)^a	3.2 (1.2)^a	69.3(3.0)^a
MOS 1.5	962.3(92.7)^a	250.7(23.9)^a	681.7(91.0)^a	680.1(91.0)^a	3.3 (1.1)^a	67.3(2.9)^a
MOS 2.0	970.2(93.1)^a	249.1(23.3)^a	688.2(91.2)^a	683.6(90.9)^a	3.1 (1.0)^a	66.9(2.9)^a
AGP	972.4(91.3)^a	245.6(23.5) ^a	684.6(90.9)^a	681.7(90.5)^a	3.2 (1.1)^a	72.7(2.8)^a

¹LWS = live weight at slaughter after transport and fasting (g).

FGTW = full gastrointestinal tract weight (g).

HCW = hot carcass weight (g).

CCW = cold carcass weight (g).

DLP = drip loss percentage (%).

DCY = dressing out carcass yield percentage (%).

²Control = group without supplement.

MOS-1.5 and MOS-2.0 = groups supplemented with MOS (Bio-Mos®, Alltech, USA) at 1.5 and 2.0 g/kg, respectively

^abMean in the same column with the same superscript do not differ significantly (significant difference at P < 0.05).