Use of Grade Animals in Dairy Cattle Improvement: Introduction

BLUP Base for Dairy Cattle Genetic Improvement in Thailand

The breeding value was estimated from grade Holstein Friesian for milk yield at 305 days (305MY), percent fat (FP), and total fat yield (FY) in kilogram. Animals were raised under Thai small farm conditions each of 10 to 30 heads per household. The data were collected during the years 1972 to 1998 from the joint cooperation between Kasetsart University (KU) and the Dairy Farming Promotion Organ...

Dairy cattle genomics: Tools to accelerate genetic improvement?

Traditional selection based on genetic merit calculated from phenotypic and pedigree information has been tremendously effective at improving production in dairy cattle. Hypothetically, genetic improvement could be accelerated even further for yield and other economically important traits by directly selecting upon the genetic differences underlying the phenotypes. To elucidate these genetic di...

Use of Canola in Dairy Cattle Diets: Year 3

This report presents results from the third and final trial of a three–year study by the Agricultural and Forestry Experiment Station (AFES) investigating the use of Alaska–grown whole–seed canola in dairy cattle diets. In the Year 1 trial, diets containing 2, 4, and 6 pounds canola per cow per day were compared to a standard diet containing no canola. (Randall, Dofing, and Brainard, 1994). In ...

Extralabel intramammary use of drugs in dairy cattle.

Impaction in Dairy Animals

Impaction in dairy animals refers to the failure of digestion, slow passage and accumulation of feed in one or more of the stomach compartments leading to constipation or absence of dung. In last few years this condition has emerged as one of the most common digestive disorder in dairy animals of Punjab. It is more common in pregnant or young cattle of less than 8 yr of age. Impaction is of two...