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Molds and Mycotoxins – Feeding Mold and Mycotoxin Contaminated Wheat to Ruminants

Source: Ontario Ministry of Agriculture, Food and Rural Affairs Acceptable levels of normal uninfected wheat for ruminants lactating dairy cows, 15 – 20% of total ration dry matter (TRDM) lactating dairy cows, 25 – 40% of grain ration feedlot cattle, up to 40% of TRDM sheep, up to 40% of TRDM The practical level of

Can Forage Quality be too Good for Cows?

Source: Manitoba Agriculture Food, and Rural Initiatives High quality forages are the backbone of every feeding program. For years, dairy producers have been cutting forages early to maximize protein and energy content. Too often though, these forages do not result in the milk production one might expect from the feeding of high quality forage. What has


Source: Canola Council of Canada news release At the recent Penn State Dairy Nutrition Workshop, Dr. Kenneth Kalscheur, a prominent dairy nutrition researcher at the U.S. Dairy Forage Research Center in Madison, Wisconsin, provided findings on the subject of “Canola Meal vs. Soybean Meal in Dairy Cow Diets”. The workshop provides training to feed industry

Lower pregnancy losses in lactating dairy cows fed a ration containing flaxseed

Source: Alberta Agriculture and Forestry, http://www.agric.gov.ab.ca/ Fatty acids can help improve energy balance and enhance reproduction Due to their caloric density, dietary fats may reduce the harmful negative energy balance that commonly occurs at the beginning of lactation, improving reproductive performance. In addition, polyunsaturated long chain fatty acids like α-linolenic acid (ALA) seem to have a

Organic dairy transition in Alberta: feed quality, herd health and production economics

Source: Alberta Milk, U of A: Burim Ametaj Background: Canadian organic milk sales are valued at over $ 29 million, Alberta represents 7 % of sales and the highest increase in market demand but only one farm is organic, therefore most product is imported from other provinces. Dairy farmers interested in transitioning have expressed concern over

Feed Analysis Reports Explained

Source: Ontario Ministry of Agriculture, Food and Rural Affairs, Anita Heeg – Feed Ingredients and By-products Specialist/OMAFRA Laboratory analyses of feeds provide the best indication of nutrient availability, allowing feeds to be utilized to their full potential. Reliable nutritional information is important to not only balance rations, but also allows ration balancing programs to determine the

Why Bypass Protein May Not Work

Source: Manitoba Agriculture Food, and Rural Initiatives Many research projects have shown that feeding undegradable, or bypass, protein supplements has a positive effect on milk production. Common sources of undegradable protein are dried distillers grains, blood meal, meat and bone meal, corn gluten meal and feather meal. Generally, any cow producing over 5 kg milk/100 kg

Determining Relative Feed Value

Source: Government of Saskatchewan Relative Feed Value – A Tool for Determining Alfalfa Quality The Concept of Relative Feed Value Feed value is an important factor when buying or selling hay. Buyers and sellers require an accurate and effective way of communicating the quality of hay using a method that best describes the feed value

Can You Feed Too Much Protein?

Source: Manitoba Agriculture Food, and Rural Initiatives The answer is yes! Almost everyone has had experience with cows scouring when placed on pasture or if fed a high protein forage. Of more importance, however, is the effect that high dietary protein levels can have on reproduction. As we have discussed before, feeds differ in their proportions

Moulds and Mycotoxins – Sampling Feed to Test for Mycotoxins

Source: Ministry of Agriculture, Food and Rural Affairs What to sample for mycotoxins tests: If feeding a total mixed ration (TMR), sample it for mycotoxins first. If the TMR test result is positive then individually sample suspect ingredients including silages and concentrates. If grain and forages are fed separately, then test them individually. Sample individual

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