Comparative nutrient utilization efficiency on diets containing combined fruit wastes in view of browser/grazer dichotomy in Ethiopian settings: Woyito-Guji bucks versus Doyo-Gena rams

Figures & data

Table 1. Chemical composition (%DM) of the dried test diets

Sample	DM	Ash	CP	NDF	ADF	ADL
Avocado seed	90.53	4.96	12.2	30.24	18.22	3.88
Avocado peel	85.64	6.21	14.54	22.49	24.37	3.49
Mango seed	90.79	7.51	10.66	27.95	17.51	4.21
Hay	91.78	5.44	6.24	58.58	27.34	5.63
Concentrate mix	90.22	8.80	16.91	25.76	16.53	1.83

DM: dry matter; CP: crude protein; NDF: neutral detergent fiber; ADL: acid detergent fiber; ADL: acid detergent lignin.

Table 2. Chemical composition of experimental diets (%DM) basis in all treatments

Parameters	T1	T2	T3	T4
OM	93.46	93.68	94.12	94.22
DM	90.42	90.28	91.23	91.07
Ash	6.54	6.32	5.88	5.78
CP	18.56	17.55	17.04	16.76
NDF	34.75	35.64	35.84	36.54
ADF	20.35	19.85	21.56	22.84
ADL	3.94	4.25	4.07	5.04
EE	4.66	4.85	5.42	5.87

OM: organic matter; DM: dry matter; CP: crude protein; NDF: neutral detergent fiber: ADF: acid detergent fiber; ADL: acid detergent lignin; EE: ether extract; T1: basal + 0%FW + 100 + CM; T2: basal + 25%FW + 75%CM: T3: basal + 50%FW + 50%CM; T4: basal + 75FW + 25%CM.

Table 3. Least square means for daily nutrient intake for sheep and goats (in gm/kg DM)

Nutrients	Species	Treatments mean				SEM	p-Value
		T1	T2	T3	T4		S	T	S × T
OM	Sheep	852.35^a	829.85^a	832.46^a	819.45^a	12.04	<0.001	0.002	0.338
	Goat	633.34^b	614.22^b	603.87^b	590.62^b
DM	Sheep	934.01^a	909.85^a	915.75^a	897.23^a	12.29	<0.001	0.002	0.298
	Goat	684.23^b	663.57^b	650.75^b	638.03^b
CP	Sheep	114.37^a	113.72^a	112.57^a	110.95^a	1.49	<0.001	<0.001	0.562
	Goat	87.85^b	85.18^b	83.13^b	81.34^b
NDF	sheep	449.46^a	446.83^a	443.98^a	445.64^a	8.14	<0.001	<0.001	0.922
	Goat	304.27^b	296.14^b	298.68^b	297.54^b
ADF	Sheep	278.05^a	273.85^a	268.70^a	267.60^a	5.96	<0.001	<0.001	0.420
	Goat	167.96^b	158.46^b	155.33^b	153.43^b
ADL	Sheep	17.34^a	18.18^a	18.98^a	19.56^a	0.26	<0.001	<0.001	0.072
	Goat	13.39^b	13.36^b	16.24^b	16.08^b
Ash	Sheep	81.65^a	79.87^a	78.99^a	77.81^a	1.61	<0.001	0.002	0.983
	Goat	50.88^b	49.37^b	47.88^b	47.42^b

^a,bMeans with different superscripts down the column indicate significant variation at (p < 0.05) within each treatments for sheep & goats; OM: organic matter; DM: dry matter; CP: crude protein; NDF: neutral detergent fiber; ADF: acid detergent fiber; ADL: acid detergent lignin; SEM: standard error for means; S: species; T: treatment; S × T: interaction effect of species & treatment; T1: basal + 0%FW + 100 + CM; T2: basal + 25%FW + 75%CM; T3: basal + 50%FW + 50%CM; T4: basal + 75FW + 25%CM.

Table 4. Body weight change and feed conversion efficiency

Parameters	Species	Treatments mean				SEM	p-Value
		T1	T2	T3	T4		S	T	S × T
IBW(kg)	Sheep	21.86^a	21.95^a	22.10^a	22.32^a	0.23	<0.001	0.888	0.997
	Goat	18.93^b	19.13^b	19.20^b	19.12^b
FBW(kg)	Sheep	23.59^a	23.38^a	23.66^a	23.20^a	0.24	<0.001	0.711	0.898
	Goat	20.37^b	21.04^b	20.78^b	20.14^b
BWG(kg)	Sheep	1.81	1.23	1.11	0.98	0.04	<0.055	<0.001	0.262
	Goat	1.46	1.08	1.24	0.89
ADWG(g)	Sheep	86.05	61.11	46.42	34.52	2.36	0.005	<0.001	0.273
	Goat	79.44	56.82	43.65	33.74
FCE	Sheep	0.09	0.08	0.09	0.05^b	0.03	0.002	0.542	0.052
	Goat	0.10	0.14	0.12	0.08^a

^a,bMeans with different superscripts down the column indicate significant variation at (p < 0.05) within each treatments for sheep & goats; IBW: initial body weight; FBW: final body weight; BWG: body weight gain; ADWG: average daily weight gain; FCE: feed conversion efficiency; SEM: standard error for means; S: species; T: treatment; S × T: interaction effect of species & treatment; T1: basal + 0%FW + 100 + CM; T2: basal + 25%FW + 75%CM: T3: basal + 50%FW + 50%CM; T4: basal + 75FW + 25%CM.

Figure 1. Average body weight change of goats & sheep in each period.

Table 5. Digestibility of experimental diets for both bucks and rams.

Nutrients	Species	Treatments mean				SEM	p-Value
		T1	T2	T3	T4		S	T	S × T
OM	Sheep	73.07	72.59	72.71	71.74	0.001	0.061	0.446	0.593
	Goat	74.50	73.32	74.14	73.16
DM	Sheep	69.42	69.28	69.79	68.55	0.003	0.740	0.998	0.753
	Goat	70.32	70.21	69.26	69.75
CP	Sheep	82.53^b	81.42^b	82.70^b	80.86^b	0.002	<0.001	<0.001	0.008
	Goat	86.41^a	86.88^a	85.45^a	83.49^a
NDF	Sheep	62.31^b	61.70^b	62.41^b	61.40^b	0.002	<0.001	<0.078	0.021
	Goat	66.44^a	65.07^a	64.87^a	64.26^a
ADF	Sheep	55.76^b	56.40^b	54.11^b	55.30^b	0.003	0.004	0.476	0.269
	Goat	60.51^a	58.60^a	58.25^a	57.85^a
Ash	Sheep	70.39^b	69.53^b	68.34^b	68.40^b	0.004	<0.001	<0.001	0.131
	Goat	77.25^a	78.58^a	75.74^a	74.86^a

^a,bMeans with different superscripts down the column indicate significant variation at (P < 0.05) within each treatments for sheep & goats; OM: organic matter; DM: dry matter; CP: crude protein; NDF: neutral detergent fiber; ADF: acid detergent fiber; ADL: acid detergent lignin; S: species; Treatment; S × T: interaction effect of species & treatment; T1: basal + 0%FW + 100 + CM; T2: basal + 25%FW + 75%CM: T3: basal + 50%FW + 50%CM; T4: basal + 75FW + 25%CM.