Effects of fumaric acid supplementation on methane production and rumen fermentation in goats fed diets varying in forage and concentrate particle size

Table 2 Ingredients and chemical composition of experimental diets

Items	Treatment diet
Items	Low-Fps:Cps	High-Fps:Cps
Ingredients, g/kg DM
Crushed corn	370	–
Ground corn	–	370
Chopped alfalfa hay	–	230
Ground alfalfa hay	230	–
Corn silage	263	263
Cottonseed meal	40	40
Soybean meal	85	85
Premix^a	5	5
CaHPO₄	2.5	2.5
Salt	5	5
Particle, % of DM retained on sieve
19.0 mm	14.8	19.8
8.0 mm	24.6	21.8
1.18 mm	39.0	27.4
Pan	21.6	31.0
Nutrient composition, % of DM
DM	52.2	52.2
Crude protein	14.2	14.3
NDF	38.3	38.5
ADF	21.3	21.0
Starch	25.1	25.0
RDS	15.3	17.5
peNDF_1.18	23.4	25.5
peNDF_1.18/RDS	1.53	1.46

peNDF physically effective neutral detergent fiber, RDS rumen degradable starch, Fps:Cps ratio of forage particle size: concentrate particle size
^aPremix (per kg) contains: Cu 370 mg, Fe 2200 mg, Zn 1800 mg, Mn 800 mg, I 30 mg, Se 30 mg, Co 50 mg, Vitamin A 200 kIU, Vitamin D₃ 4500 IU, Vitamin E 6500 IU, Vitamin K₃ 45 mg, Vitamin B₁ 40 mg, Vitamin B₁₂ 1 mg, Nicotinic acid 1,000 mg and Pantothenic acid 700 mg

ISSN: 2049-1891