Physiological parameters, hair coat morphological characteristics and temperature gradients in holstein-gyr crossbred cows

The impact of hair coat color on longevity of Holstein cows in the tropics

BACKGROUND Over two decades of observations in the field in South East Asia and Hawai'i suggest that majority of the commercial dairy herds are of black hair coat. Hence a simple study to determine the accuracy of the observation was conducted with two large dairy herds in Hawaii in the mid-1990s. METHODS A retrospective study on longevity of Holstein cattle in the tropics was conducted using...

CASE STUDY: Performance of Lactating Jersey and Jersey- Holstein Crossbred Versus Holstein Cows in a Wisconsin Confinement Dairy Herd

The objective of this trial was to measure performance of paired pens of lactating Jersey and Jersey-Holstein crossbred (JX) vs. Holstein (H) cows over a year in a Wisconsin confinement dairy herd. Average daily milk yield of JX was 5.5 kg/ cow less than H, whereas average milk fat and true protein percentages were 0.61 (4.26 vs. 3.65%) and 0.19 (3.05 vs. 2.86%) percentage units, respectively, ...

Analysis of Early Lactation Reproductive Characteristics in Holstein Cows

............................................................................................................................ i ACKNOWLEDGESMENTS .................................................................................................................... ii LIST OF TABLES...................................................................................................................v L...

Brown Swiss × Holstein Crossbred Cows Compared to Pure Holstein Cows for Calving Traits, Production, and Conformation Measurements in First, Second, and Third Lactation

Claw Lesions Causing Clinical Lameness in Lactating Holstein Frisian Crossbred Cows

The objective of this study was to identify claw lesions causing clinical lameness in lactating Holstein Frisian (HF) crossbred cows in dairy cattle. Seventy dairy farmers were interviewed at the monthly meetings of Progressive Dairy Farmers Association of Ludhiana, Punjab, India. Ten dairy farms were randomly selected as per probability proportional to size and a total of 450 lactating HF cros...