There’s Potential for Poisoning During Fall Grazing

– Jordan Penrose, Ohio State University Extension Agriculture and Natural Resources Educator, Gallia County (previously published in Farm & Dairy)

With fall fast approaching, it may be time to assess potential problems that could arise when livestock are grazing, such as trees and grasses. A good practice of walking or driving through your pastures will help you know what is growing in or around them.

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2022 Beef-Dairy Crossbreeding Program

Many dairy herds are implementing a beef-dairy crossbreeding program for all or a portion of their lactating cows in order to add value to newborn calves. This webinar will provide a practical approach to assess a beef-dairy crossbreeding program with emphasis on the maternity and survival and performance of postpartum calves and cows. The webinar is free of charge, but you must register (available in English and Spanish).

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Pasture Bloat Concerns and Responses

Last week in this publication we shared concerns for frothy bloat in pastured cattle. As a follow up, in this episode of Forage Focus, Host- Christine Gelley- Extension Educator, Agriculture & Natural Resources in Noble County and Dr. Steve Boyles, OSU Extension Beef Specialist, dig deeper into the causes and possible solutions for frothy bloat occurrences in pastured livestock. Their discussion includes how pasture managers need to be observant of forage growth, weather conditions, and animal behavior to avoid conditions that commonly trigger bloat and to recognize and treat bloat quickly if it occurs.

Ruminal Acidosis (Grain Overload)

Dr. Richard Bowen, Professor, Department of Biomedical Sciences, Colorado State University (Previously published online with Colorado State University, VIVO Pathophysiology)

The rumen encases a complex ecosystem containing numerous species of bacteria and protozoa that collectively provide the capacity for efficient fermentation of carbohydrates. Among the major products of such fermentation are volatile fatty acids and lactic acid. Wild ruminants and those raised on pasture consume a diet rich in grasses of one sort or another that consist mostly of cellulose. Cellulose is a molecule that might be called a “slowly fermentable carbohydrate”. In contrast, grains such as wheat, barley, and corn are considered “highly fermentable carbohydrates”, meaning that they can be very rapidly fermented to generate – you guessed it – large quantities of volatile fatty acids and lactic acid. Ruminal acidosis results from consumption of a unaccustomed quantity of highly fermentable carbohydrate, almost always well described as grain overload.

Ruminal acidosis is most commonly a disease of dairy and feedlot cattle, and occasionally sheep in feedlots. All of these animals are typically fed large quantities of grain, because such a diet promotes production of milk and enhances growth. The key point is that animals and their ruminal microbes must be adapted over time to a high grain diet, rather than being acutely changed to such feed, otherwise acidosis commonly ensues. In some cases, animals develop acute acidosis “accidentally”, when, for example, they escape from their pen and get into a store of grain.

 

 

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Wet Years have Favored Weeds

Melissa Bravo, agronomic and livestock management consultant
Previously published in Hay & Forage Grower: April 21, 2020)

 

Here we go again. Another mild winter of heave and thaw with little snow cover to protect the shallow roots and crowns of improved forage crops.

Without that snow barrier, species such as alfalfa and timothy — the most susceptible of our non-native forages — are subject to winter injury, which thins stands. This leaves less competition for weeds to establish and flourish.

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Check Cattle for Lice in Late Winter/Early Spring

– Rory Lewandowski, Extension Educator Wayne County

Originally posted on the OSU BEEF Newsletter

Check beef and dairy cattle for lice infestations during the late winter and early spring months.  Although lice can be present throughout the entire year, high numbers of lice are most likely during winter months when cattle have longer, thicker hair coats, which make self-grooming less effective in reducing lice numbers.  Hot summer temperatures, and for pasture-based production systems, direct exposure to sun, plus rain showers, all play a role in reducing lice numbers and offer further explanation of why heavy lice infestations are most often seen during winter months.

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When to Start Grazing: Don’t Rush It!

– Chris Penrose, Extension Educator, Ag and Natural Resources, Morgan County

Originally posted on the BEEF Newsletter

 

One goal I have had with livestock grazing over the years is to start as soon as I can. I put spring calving cows on stockpiled grass in early March to calve with the hope of not having to feed any more hay. Many years this works but not this year, grass is just starting to grow. The stockpile is about gone and I have started feeding them some more hay but hope to move the group with the fall calving cows this weekend. I then plan on starting a fast rotation around many of the paddocks and hay fields which is actually later than many years.

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