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Dairy cattle health
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Introduction In March 2024, the CDC and USDA reported the first-ever cases of HPAI A(H5N1) in dairy cattle in the United States. As of May 2025, over 1,000 herds across 17 states have been affected, with California among the hardest hit. This unprecedented outbreak has had a significant impact on milk production, animal health, and public confidence. The emergence of Highly Pathogenic Avian Influenza (H5N1) in California's dairy cattle since August 2024 has...
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A cow’s biology and genetics set the stage for her milk production potential. Thanks to genomics, the pace of genetic progress has accelerated in recent years, pushing that potential ever higher. But are we feeding cows to match it? Today’s dairy cows can achieve more with better nutrition, yet their ability to physically consume enough nutrients lags behind their rising requirements. ...
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In this conversation with Dr. Ryan Ordway from Balchem, we dive into how dairy farmers can manage the transition period without relying on Kextone. The key? Preventing ketosis through proper nutrition and management. ...
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In this video, Dr. Ryan Ordway from Balchem explores how Niashure, a natural, non-medicated nutritional solution is designed to support animals through the critical transition period. ...
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Dr. Ryan Ordway from Balchem talks about the benefits of ReaShure-XC, a powerful nutritional solution that ensures adequate choline intake for animals. By providing sufficient choline, this product promotes a healthy liver, supports mammary gland energy for milk production, and boosts colostrum quality....
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Please tell homeopathic treatment ...
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The negative effects of heat stress and ways to deal with them are currently among the most important research areas. The reason for this is clear, heat stress has become the greatest cause of economic losses to dairy herds, including in regions with a relatively temperate climate, which have only begun to feel the problem in recent years. Evidence of the importance of the issue can be found in the following figure, taken from a recently published article and reviewing the sharp...
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The American Feed Industry Association (AFIA) will be hosting an educational program tackling hot topics facing the animal food industry at the upcoming International Production & Processing Expo (IPPE) , happening Jan. 28-30, 2025, in Atlanta, Ga. The program, “What’s Keeping the Feed Industry Up at Night?” ...
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Lecture given as part of bpt (German National Veterinarians Association) meeting 2024, held as part Euro Tier exhibition, Hannover, Germany. The principal factors affecting world dairy sectors in summer are climate change (global warming) and the Increase cow’s productivity. The high yielding cow generates more than 2000 W of heat (like 25 persons), which is much above her capability to dissipate, in a typical summer day. The cow in Germany will...
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Dry period heat stress significantly reduces milk yield in the subsequent lactation in cows. Altered methylation patterns in mammary tissues is associated with the decline in milk yield. We hypothesized that as a methyl donor, choline (RPC) supplementation reverses similar patterns of methylation and thus productivity in heat-stressed dams. Late-gestation Holstein cows (n = 51) housed in freestall barns were enrolled to either heat stress (HT, n = 12), HT with RPC (HTC, n = 11), cooling (CL,...
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The TMR stability of rumen-protected lysine (RPL) products has been previously investigated, albeit without a positive control, potentially introducing bias. The objective of this experiment was to evaluate the TMR stability of 6 RPL products using a modified technique that used an unprotected Lys treatment as a positive control. Triplicate Ziploc bags containing RPL (equivalent of 1 g of Lys), no RPL (negative control) or unprotected Lys-HCl (positive control; 1 g of Lys) mixed with 200 g...
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Cooling the cows through a combination of wetting and forced ventilation is the most common method in the world today. I estimate that more than 80% of the cows that are currently cooled in the world are cooled by this method. Today we know very well what is required to cool the cows properly, in terms of the "wetting quality", air speed and the time required for cooling during the day and throughout the year. In this article, I would like to describe how was developed the knowledge on...
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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 answer for the moment is no! The literature published until now deals with most of the...
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According to the Italian website CLALIT, in 2021 the Italian dairy sector accounted for almost 10% of the total EU milk production and 6% of EU milk exports. Italy exports nearly 35% of its milk production, mostly cheese, with high added value to the milk. Italian dairy herd consists of 1.6 million dairy cows, most of them in farms located in the Po valley region, in the north of the country. Milk production in 2021 reached 13.2 billion litres, when per cow annual milk production is 8,300...
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Mr. Rehmanullah resident of Maina Doug valley is only 10th class passed livestock farmer, has acquired about two Kenal land on rent basis for the establishment of a small scale dairy farm. A compartment 25 feet long, 15 feet wide and 10 feet high has been constructed, having two big windows on one side...
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Today we welcome Dr. Antonello Cannas from the University of Sassari to discuss the diets of small ruminants, specifically sheep and goats. ...
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Mohamed Donia (University of Illinois) Ruminant neonates rely on colostral immunoglobulin and nutrients to support health, welfare, and performance, by protecting against infectious disease and providing early life resilience. Recent evidence suggests that transferred colostral cells also contribute to neonatal immunity under controlled experimental conditions. This study provides evidence that colostral cells enhance neonatal resilience to routine,...
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Brian Aldridge (University of Illinois) Biological health is a complex topic of discussion and is often misunderstood as existing as a binary state in terms of the presence or absence of disease. In many ways, it is useful to explain health at a population or system level as the existence of individuals in 1 of 3 states: those in a healthy condition, those with a prediseased status, and those in a diseased state. At a systems level, it is useful to...
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Summer heat stress is currently one of the biggest causes of economic losses to the global dairy industry, especially in the hot regions of the world. The International Dairy Federation (IDF) decided to deal with the problem and established recently an expert's committee to examine the issue and recommend ways to deal with it at the global level. After being recommended by the Israeli Dairy Board to participate in this committee, I found myself serving in a central role in...
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Mohamed Donia (University of Illinois) talks about the benefits of colostral cells to neonatal lambs' health and welfare, during the 11th Symposium on Gut Health in Production of Food Animals in St. Louis, USA....
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