Monday, October 30, 2017

COW/CALF CORNER The Newsletter From the Oklahoma Cooperative Extension Service October 30, 2017



COW/CALF CORNER
The Newsletter

From the Oklahoma Cooperative Extension Service
October 30, 2017

In this issue

Something for everyone in current feeder cattle markets
Derrell S. Peel, Oklahoma State University Extension Livestock Marketing Specialist

Can storage of vaccine affect its efficacy?
Gant Mourer Beef Value Enhancement Specialist Oklahoma State University

The impact of dressing percent on cull cow marketing
Glenn Selk, Oklahoma State University Emeritus Extension Animal Scientist


Something for everyone in current feeder cattle markets
Derrell S. Peel, Oklahoma State University Extension Livestock Marketing Specialist

You know that old saying about a gift horse and its mouth…this is no time to be checking the teeth on current feeder cattle markets.  Feeder cattle markets have stayed stronger than expected this fall and offer a number of opportunities for all types of cattle producers.  Calf prices have dropped very little this fall from summer levels…much less than the normal seasonal decline.  Oklahoma calf prices this October are about 27 percent higher than this time last year.  Cow-calf producers are selling weaned calves for $150 to $200 per head more than last year.

Heavy feeder cattle prices have not declined seasonally rather they have increased this fall.  Seven-weight steers are up about six percent in October from August and are 25 percent higher than last year.  An increase in heavy feeder price relative to stocker price increases the value of gain and is a stocker signal to put more weight on cattle in the country.  For example, adding 250 pounds to a 500 pound steer currently has a value of gain of about $1.35 per pound at current prices.  Feedlots are bidding heavy feeders higher and that increases the signal for stockers to add weight to cattle prior to feedlot placement. 

Of course, current value of gain is only the buy signal and does not include the market risk between now and when the 750 pound steer in the above example will be sold.  However, Feeder Cattle futures have been remarkably strong and currently offer an opportunity to lock in good margins for feeders sold in the March to May time period.  The 750 pound steer will likely have a breakeven of $140-$145/cwt in March, depending on gain and costs.  March Feeder futures at the time of writing this article were about $153/cwt. suggesting a rare margin opportunity for winter grazing.  Stocker producers, and cow-calf producers with potential to retain weaned calves as stockers, should pencil out the opportunities depending on beginning weight and expected timing and weight of later sales.  While cash market fundamentals are solid, spring Feeder futures are arguably overpriced and subject to correction at any time. The best opportunities may be fleeting!

Earlier in the fall, feedlots were losing some money and appeared to be paying too much for feeder cattle and thus jeopardizing feedlot margins for the coming months. However, cash fed cattle prices have improved recently, increasing current margins.  Cost of gain is expected to stay very favorable for the foreseeable future.  Moreover, Live Cattle futures prices have pushed higher recently to levels that come close to supporting current feeder prices for cattle finishing through next April.  As with Feeder futures, the Live Cattle futures pricing opportunity may be short-lived. 

Strong demand is what makes all of this possible.  Boxed beef prices have recovered about $10/cwt. from the early fall lows.  Retail beef prices are holding close to year ago levels despite a four percent increase in beef production in 2017.   Demand is strong in both domestic and international markets, with year to date exports up over 14 percent.  Strong demand is the key to allowing all sectors of the industry to have decent margins simultaneously and will be the key as beef production continues to grow in 2018. 



Can storage of vaccine affect its efficacy?
Gant Mourer Beef Value Enhancement Specialist Oklahoma State University

Respiratory disease in cattle also known as BRD, shipping fever or pneumonia may cost the U.S. cattle industry over $2 billion annually (Powell 2013). Management techniques can offset much of this cost and having a good vaccination program can maintain the health of a calf all the way through the production system. A vaccine can cost over $3.00 a head, and if not stored properly that vaccine can be rendered in effective. Producers cannot afford to overlook the importance of how they store vaccine and handle it prior to injection.

Biological products should be stored under refrigeration at 35 to 45F unless the nature of the product makes storing at a different temperature advisable (APHIS 2007). If vaccines are not stored within this temperature range, efficacy to the calf can and will be reduced. Killed vaccines are especially susceptible to freezing temperatures. Freezing a killed vaccine will alter the adjuvant or delivery system of a killed vaccine. This, in turn, negatively affects the immune response to the antigen in the vaccine. Modified live viruses (MLV) are more stable but can be in-activated if they are repeatedly cycled above or below the required temperature range (Gunn et al, 2013). Also, once activated by mixing, MLV’s effective life will be reduced to 1-2 hours and need to be maintained at the 35 to 45 F. This can be accomplished by only mixing the doses that you will use at that time and use a cooler to maintain temperature while working cattle.

Researchers from the University of Arkansas and Idaho analyzed the consistency of temperatures for different types, ages and locations of refrigerators over a 48 hour period. They found that only 26.7% and 34.0% of refrigerators were within the acceptable temperature limit 95% of the time, respectfully. Refrigerator location can also effect temperature. Refrigerators located in barns (35.6 F) were colder than in mud rooms (41.72 F) and kitchens (40.82 F). (Troxel and Barham 2009). Temperature within a 24 hour period can also be highly variable for individual refrigerators. Troxel and Barham (2009) demonstrated some refrigerators may take up to 8 hours to cool down to the 45F, while others will remain too cold varying from 24.8F to 35.6F.

Producers need to be aware of these variations in temperature so they are able to adjust refrigerator temperature as needed. Thermostats can also be very variable from unit to unit, so keeping a thermometer inside works well to monitor and to make adjustments as need. Simple indoor-outdoor thermometers work well to achieve this goal. The outdoor unit can be placed in the refrigerator while the LCD display can be hung with a magnet on the door. This allows temperature to be monitored without opening the door and many models will record the high and the low temperature in a 24 hour period so producers can adjust accordingly.

How a producer handles vaccine outside of the refrigerator is important as well. Coolers can easily be modified for syringes and are important to maintaining vaccine efficiency chute side. Using a 1 ½’ PVC pipe or sink tail piece purchased at any hardware store and a 1 ½’ hole saw, inserts can placed through the cooler and work well to keep syringes cool and out of light while in use. Either ice or freezer packs can be used as a coolant to maintain temperature for several hours depending on outside ambient temperature. Make sure that enough coolant is used to maintain temperature while working cattle and extra ice may be needed if working cattle all day or during warm days. It may also take up to an hour for the cooler to reach the needed 45F, so producers may need to plan ahead prior to processing cattle.  Details on the construction of a chute side vaccine and syringe cooler can be found in Oklahoma State University Fact Sheet ANSI-3300:  "Chute Side Vaccine Cooler"
These are a few simple suggestions that can help ranchers get the full value of the vaccine that they purchase. More importantly, positively affect the health of their herd, decrease sickness, and increase profit. 


The impact of dressing percent on cull cow marketing
Glenn Selk, Oklahoma State University Emeritus Extension Animal Scientist

Cull cows that are destined to go to the packing house are graded by their fleshiness.  The fattest cows are called “Breakers”.  Moderately fleshed cows are “Boning Utility”.  Thin cows are called “Leans” or “Lights”, depending upon the weight of the cow.  There will be price differences among these four grades.  However, within each grade, large variation in prices per hundredweight will exist because of differences in dressing percentage.  Cow buyers are particularly aware of the proportion of the purchased live weight that eventually becomes saleable product hanging on the rail.  Dressing percentage is (mathematically) the carcass weight divided by the live weight multiplied by 100.

Key factors that affect dressing percentage include gut fill, udder size, mud and manure on the hide, excess leather on the body, and anything else that contributes to the live weight but will not add to the carcass weight.  Most USDA Market News reports for cull cows will give price ranges for High, Average, and Low Dressing Percents for each of the previous mentioned grades.  As you study these price reports, note that the differences between High and Low Dressing cows and bulls will generally be greater than differences between grades.  Many reports will indicate that Low Dressing cows will be discounted up to $8 to $10 per hundredweight compared to High Dressing cows and will be discounted $5 to $7 per hundredweight compared to Average Dressing cows.  These price differences are usually widest for the thinner cow grades (Leans and Lights).  See examples from last week’s sale in Oklahoma City National Stockyards:


As producers market cull cows, they should be cautious about selling cows with excess fill.  The large discounts due to low dressing percent often will more than offset any advantage from the added weight. 



Oklahoma State University, in compliance with Title VI and VII of the Civil Rights Act of 1964, Executive Order 11246 as amended, Title IX of the Education Amendments of 1972, Americans with Disabilities Act of 1990, and other federal laws and regulations, does not discriminate on the basis of race, color, national origin, sex, age, religion, disability, or status as a veteran in any of its policies, practices or procedures. This includes but is not limited to admissions, employment, financial aid, and educational services.  References within this publication to any specific commercial product, process, or service by trade name, trademark, service mark, manufacturer, or otherwise does not constitute or imply endorsement by Oklahoma Cooperative Extension Service.

Monday, October 23, 2017

Davis Tussock Moth caterpillar is here again 10/17/2017



Gardening Minute
10/17/2017

This is Jason Lamb with your Gardening Minute.
The Davis Tussock Moth caterpillar is here again.  The Tussock Moth seems to come out every year this time and feed as much as possible on Mulberry trees.
The Davis’ Tussock Moth caterpillar is a hairy black and white caterpillar that has brown to yellow tuffs at each end of its body and a black strip down its back. The adult is a yellow sphinx moth that has colorful iridescent spots, and is considered a tiger moth.
So what can a home owner do? Well, on one hand Mulberry trees have tertiary buds that allow them to produce more leaves after they have been defoliated. And if the tree is healthy it should weather the storm. Plus mulberry trees will be losing their leave soon anyway because of the cold weather and the moth will also be gone do to the cold temperatures.  So a home owner may choose to do nothing.
However if you decide to spray for the caterpillars the safest insecticide to use on any caterpillar is Thuricide which is safe for all vertebrates and is a BT compound. Trees should be sprayed thoroughly on the base of the trunk and on major branches. Please read and follow the label for use.
For more information about the Davis Tussock Moth please contact us at the Cooperative Extension Office at 461-0562.  This has been your Gardening Minute with Jason Lamb your Quay County Ag. Extension Agent. Where are programs are open to everyone.

COW/CALF CORNER The Newsletter From the Oklahoma Cooperative Extension Service October 23, 2017



COW/CALF CORNER
The Newsletter

From the Oklahoma Cooperative Extension Service
October 23, 2017

In this issue

Feedlot inventory continues to swell
Derrell S. Peel, Oklahoma State University Extension Livestock Marketing Specialist

Prussic acid and nitrate poisoning are concerns after a light frost
Glenn Selk, Oklahoma State University Emeritus Extension Animal Scientist


Feedlot inventory continues to swell
Derrell S. Peel, Oklahoma State University Extension Livestock Marketing Specialist

Counter-seasonally strong feeder cattle prices this fall indicated good demand despite growing feeder cattle supplies.  The October Cattle on Feed report confirmed that much of that demand came from feedlots.  September feedlot placements were up 13.5 percent year over year, more than generally expected ahead of the report.  Marketings were up 2.9 percent over last year.  Feedlot inventories for October 1 were pushed higher by the large placements to 5.4 percent above year ago levels.  At 10.813 million head, the October on-feed inventory is the largest October inventory since 2012. 

September placements were higher across all weight categories but largest in relative terms for the heaviest and lightest weight categories.  Placements under 600 pounds were up 17.4 percent year over year while placements over 800 pounds were up 14.4 percent compared to last year.  Placements in the 600 and 700 pound categories were up 13.3 and 8.9 percent respectively.

Quarterly on-feed estimates in the October report showed that the number of steers on-feed was up 1.6 percent year over year on October 1 while the inventory of heifers in feedlots was up 13.0 percent from one year ago.  This indicates continued growth in heifers on feed (July 1 heifers on feed were up 10.6 percent year over year).  Heifer slaughter so far this year is consistent with these inventory totals, up 12 percent year over year, and suggests that heifer slaughter will continue to grow for the foreseeable future.  These numbers suggest that heifer retention (and likely herd growth) is slowing.  However, the average ratio of steer to heifer slaughter (which peaked recently in 2016) and is adjusting down, is still at levels not seen since 1975 (prior to mid-2015).  Steer slaughter for the year to date is up 2.9 percent year over year. 

Steer and heifer carcass weights continue to run well below last year with reported carcass weights for the most recent week down 16 pounds for steers and down 15 pounds for heifers compared to the same time last year.   Average fed carcass weights are down 14.6 pounds for the year to date. Average fed carcass weights are down due to lighter steer and heifer carcasses and a growing proportion of heifers to steers in the fed slaughter mix.  USDA reports total cattle slaughter up 5.8 percent year over year so far this year with beef production up 4.2 percent for the year to date. 


Prussic acid and nitrate poisoning are concerns after a light frost
Glenn Selk, Oklahoma State University Emeritus Extension Animal Scientist

Although late October has been very warm and “summer-like”, the average first frost date for much of the Southern Plains is here.  Soon a cold front will bring near-freezing to sub-freezing nighttime temperatures

 It was discovered in the early 1900s that under certain conditions sorghums are capable of releasing hydrocyanic acid or commonly called prussic acid.  Prussic acid when ingested by cattle, is quickly absorbed into the blood stream, and blocks the animal's cells from utilizing oxygen.  Thus the animal dies from asphyxiation at the cellular level.  Animals affected by prussic acid poisoning exhibit a characteristic bright red blood just prior to and during death.  Lush young regrowth of sorghum-family plants are prone to accumulate prussic acid especially when the plants are stressed such as drought or freeze damage.  Light frosts, that stress the plant but do not kill it, are often associated with prussic acid poisonings. 

Producers should avoid grazing fields with sorghum type plants following a light frost.  The risk of prussic acid poisoning will be reduced, if grazing is delayed until at least one week after a "killing freeze".  As the plants die and the cell walls rupture, the hydrocyanic acid is released as a gas, and the amount is greatly reduced in the plants.  One can never be absolutely certain that a field of forage sorghum is 100% safe to graze.

Cattle that must be grazed on forage sorghum pastures during this time of year should be fed another type of hay before turning in on the field, and should be watched closely for the first few hours after turn in.  If signs of labored breathing, such as would be found in asphyxiation, are noted, cattle should be removed immediately.  Call your local veterinarian for immediate help for those animals that are affected.  Be certain to read OSU Fact Sheet PSS-2904 “Prussic Acid Poisoning” before turning cattle to potentially dangerous fields. 

Frosts also stress the plant before a hard freeze kills it.  Plant stress from frosts will impair the normal metabolism of the plant.  Therefore the plant continues to take up nitrates from the soil but is inefficient at converting the nitrates to protein.  Therefore nitrate accumulations may reach dangerous levels.  Testing the forage before grazing or cutting for hay will provide important knowledge about the safety or danger in the forage.  Visit with an OSU County Extension office about testing procedures and read OSU Fact Sheet PSS-2903 “Nitrate Toxicity in Livestock”.

Oklahoma State University, in compliance with Title VI and VII of the Civil Rights Act of 1964, Executive Order 11246 as amended, Title IX of the Education Amendments of 1972, Americans with Disabilities Act of 1990, and other federal laws and regulations, does not discriminate on the basis of race, color, national origin, sex, age, religion, disability, or status as a veteran in any of its policies, practices or procedures. This includes but is not limited to admissions, employment, financial aid, and educational services.  References within this publication to any specific commercial product, process, or service by trade name, trademark, service mark, manufacturer, or otherwise does not constitute or imply endorsement by Oklahoma Cooperative Extension Service.