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I decided to write this article following a concrete case, in which I was asked to give an opinion regarding the purchase of fans to cool the cows along the feed line of a certain dairy farm. This manager was 240 meters long and was used to feed (and cool) 320 cows.The dairy owner had two proposals for fans to be installed in the feeding area. The first fan was 50″ in diameter with a 1.5 hp ...

Heat stress related production loss, compromised welfare and cattle mortality are global concerns, which are increasing in the context of climate change and increase productivity of the cows. Cattle response to heat stress varies, based on individuality and thermal environment. In this article I intend to describe heat stress monitoring, in individual and herd basis, making use of thermal indices, ...

Poultry is a homothermal animal, and its body covers with feathers to increase its cold resistance. However, Taiwan is an island that lies in the tropic of cancer, and the general climate is marine tropical. During summer, this mechanism is adverse to heat dissipation and causes heat stress.Heat stress is a familiar stress effect that will affect animals’ growth performance, productivity, an ...

Efficient cooling systems based on water evaporation from cow's body surface have been developed in last four decades in dairy sectors of warm climate countries. The main effect of cooling is in reducing the drop in food consumption caused by heat stress, in addition to the normal drop in food consumption in the beginning of lactation, resulted by the mobilization of body reserves and with all its ...

Achieving high conception rate is one of the conditions for achieving efficient production of milk at farm level. For many years the Israeli dairy industry suffered, like other farms in warm countries, a significant decline in the ability to pregnant the cows during summer months, causing reduction in the efficiency of milk production and seasonality in milk supply to the industry and market.Unlik ...

IntroductionPrecision nutrition means diets are formulated as close as possible to requirements while avoiding any deficiency issues. Benefits of precision mineral nutrition can include reduced diet costs, reduced environmental impact, and reduced risk of toxicity. The major problem with precision mineral nutrition is increased risk of deficiency. Deficiency can be manifested as a clinical deficie ...

In recent years, adjustments to the production costs in the dairy industry becomes crucial in light of current circumstances. There has been a continuous reduction in profit margins and increasing instability in this industry. Each stage in the production process requires maximum efficiency from both professional and economic points of view. The calf rearing stage is an integral part of the dairy ...

Heat stress is considered one of the main causes of performance and economic losses in the world dairy sector. These losses are proportional to the degree of heat stress cows are subjected to (days or hours per year, cows are exposed to THI above threshold), as well as to the level of production and some nutritional and managerial practices. Do we really know to quantify the total losses? The answ ...

Nowadays that pandemic is of actuality some epidemiology lessons can be extracted to understand lameness prevention. To address lameness prevention in an academic way we must follow the basis of preventative medicine stablished by Wirchow based on 3 steps:There are 3 level of prevention:1 Avoid disease appearance2 Minimize clinical expression3 Treat clinical cases to minimize severityLevel 1Starts ...