The aim of this study was to assess dairy herds status and nutritional parameters in Shahreza, A total of 63 dairies were chosen. Multivariate analysis, was performed to determine calf, nutrition, reproduction, milk yield, animal health and management. Statistical procedures were conducted using SAS/STAT 9.1 (SAS Institute Inc., Cary, NC). The distribution of management practices across herds was determined using the frequency procedure (PROC FREQ) and means procedure (PROC MEAN). Data set studied included records from 5676 cows in 63 herds. The median herd average milk yield per cow per day was 21.43kg, with milk fat percent 3.30 and milk protein percent 3.12. Total count and somatic cell count were about 5000000 cfu/ml. and 465000 cfu/ml., respectively. The data analyses showed aborning weight and weaning weight were about 40.42 and 96.07 Kg, respectively. Because of hygiene ambiance and feeding condition, herds have about 5.87% calf patient and 12.92% calf mortality. Heifers with 371.34 Kg mean weight and 16.69 months old were inseminated. Calving intervals was 12.92 month. Qualities and quantities of diets and feeding management is reason for fecal pH about 6.57 and MUN about 18.87. Concentrate to forage ratio was 57:43. This study resulted that mean feed space, water space, and area for each cow were 128.95cm, 16.63cm, 18.13m 2 . In these herds one worker was employed for 214 Kg milk yield. Due to lack of accurate information on economic data, cost-benefit analyses were not conducted. Key words: Holstein dairy herds, Nutritional and Management Assessment , Shahreza .
