Prediction of drinking water intake by dairy cows

Prediction of water intake and excretion flows in Holstein dairy cows under thermoneutral conditions.

The increase in the worldwide demand for dairy products, associated with global warming, will emphasize the issue of water use efficiency in dairy systems. The evaluation of environmental issues related to the management of animal dejections will also require precise biotechnical models that can predict effluent management in farms. In this study, equations were developed and evaluated for pred...

Factors Affecting Dry Matter Intake by Lactating Dairy Cows

Feed intake is the single most critical factor of dairy production, and performance of dairy cattle can be enhanced or hindered by environmental factors that affect it. These environmental factors can by divided into physical and climatic conditions. On modern dairies, the physical factors may be of more concern. Modern facilities provide the cow with protection from the natural elements. Howev...

Prediction of Dry Matter Intake in Lactating Holstein Dairy Cows Offered High Levels of Concentrate

Accurate estimation of dry matter intake (DMI) is a prerequisite to meet animal performance targets without penalizing animal health and the environment. The objective of the current study was to evaluate some of the existing models in order to predict DMI when lactating dairy cows were offered a total mixed ration containing a high level of concentrates and locally produced agricultural by-pro...

Water and Feed Intake in Dairy Cows – Model Evaluation and Potential for Health Monitoring

Die Dissertation wurde mit dankeswerter finanzieller Unterstützung der Stiftung Schleswig-Holsteinische Landschaft angefertigt. Water is one of the most important foodstuffs of a dairy cow – the average amount of 87% water in 1 kg of milk may confirm this thesis (Winchester and Morris, 1956). To ensure good animal health, performance and welfare status, a sufficient supply of water is essential...

Nitrate Intake from Drinking Water in Isfahan in 2004