Thyroid Hormones Concentrations during the Mid-Dry Period: An Early Indicator of Fatty Liver in Holstein-Friesian Dairy Cows

Table 2

Chemical composition of cow’s diets.

	Days related to calving
Chemical composition	−60 to −14 days	−14 to 0 days	0 to +60 days
DM kg	12.35	9.82	23.63
Net energy of lactation (NEL) MJ	72.86	65.50	163.03
Crude protein (CP) %	12.5	15.03	16.05
Rumen undegradable protein (RUP) %	4.09	5.09	5.06
Crude fat %	2.60	3.82	4.78
Acid detergent fibre (ADF) %	32.19	25.31	22.08
Neutral detergent fibre (NDF) %	49.53	40.59	35.48
Ca %	0.73	0.64	0.90
P %	0.44	0.42	0.52
Na %	0.23	0.13	0.36
Cl %	0.30	0.17	0.29
Mg %	0.31	0.27	0.34
K %	1.42	1.30	1.18
S %	0.23	0.22	0.22
Mn ppm	111.56	129.36	82.40
Cu ppm	33.23	39.81	25.64
Zn ppm	132.27	168.24	96.90
Co ppm	0.78	1.03	0.54
J ppm	2.44	3.06	1.64
Fe ppm	221.67	228.38	220.53
Se ppm	0.89	1.14	0.70
Vit A IU/kg	21 487.26	41 234.28	21 273.58
Vit D IU/kg	1 574.05	4 487.10	3 445.30
Vit E Iu/kg	83.31	117.79	69.35