英语翻译Effects of eugenol supplementation on feed intake,nutrie

英语翻译
Effects of eugenol supplementation on feed intake,nutrient
digestibility,nitrogen retention,milk production,and milk
composition of dairy cows fed high- or low-concentrate diets.C.
Benchaar*1,W.Z.Yang2,H.V.Petit1,and P.Y.Chouinard3,1Agriculture
and Agri-Food Canada,Dairy and Swine R&D Centre,Sherbrooke,
QC,Canada,2Agriculture and Agri-Food Canada,Lethbridge,AB,
Canada,3Université Laval,Départements des Sciences Animales,
Québec,QC,Canada.
Four ruminally primiparous lactating cows (BW = 568 kg; DIM = 67)
were used in a 4 × 4 Latin square design (28-d periods) with a 2 × 2
factorial arrangements of treatments to determine the effects of eugenol
(EUG) supplementation (0 vs.50 mg/kg of DMI) and concentrate level
(high:H vs.low:L; 65% vs.35%,DM basis) on nutrient digestibility,N
retention,milk production,and milk composition.Orthogonal contrasts
(MIXED procedure; SAS Inst.,Inc.,Cary,NC) were used to test the
main effects of EUG supplementation,concentrate level (CON) and
their interaction (CON × EUG).Significance was declared at P ≤ 0.05.
No interaction of CON × EUG was observed for any of the variables
measured.Intake of DM was higher for H than for L (20.0 vs.16.9
kg/d).Apparent total tract digestibilities of DM (66.8 vs.69.4%),OM
(68.2 vs.70.8%),N (66.0 vs.68.8%),and ADF (57.3 vs.60.6%) were
lower for H than for L.Retention of N was not affected by concentrate
level (59 g/d; 11% of N intake).Milk production (32.2 vs.30.8 kg/d)
and milk protein content (3.31 vs.3.02%) were higher whereas milk
fat content was lower (3.64 vs.3.92%) and milk lactose concentration
tended to be lower (4.67 vs.4.61; P = 0.08) for cows fed H than for
those fed L.Milk urea N was unaffected by concentrate level (9.52 mg/
dL).Yield of 4% FCM was similar for H and L diets (30.1 kg/d).Yield
of milk fat was not affected by concentrate level (1.17 kg/d) whereas
milk yields of protein (1.05 vs.0.93 kg/d) and lactose (1.51 vs.1.37
kg/d) were higher for cows fed H than for those fed L.Feed efficiency
(kg 4% FCM/kg DMI) was lower for cows fed H than for those fed L
(1.51 vs.1.79).Neither DMI nor nutrient apparent total tract digestibility,
N retention or milk performance was affected by EUG supplementation.
Results of this study show that adding EUG at the concentration
of 50 mg/kg of dietary DM to a high- or low-concentrate diet had no
effects on nutrient digestibility,N retention,milk production and milk
composition of dairy cows.
Key Words:essential oil,concentrate level,dairy cow
楼下的都是用翻译软件翻译的啊。要通顺一点啊。、

太长了这也……