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  1. Ammonia Emission from Animal Feeding Operations and Its Impacts

    https://ohioline.osu.edu/factsheet/AEX-723.1

    50 ppm, increased levels of keratoconjunctivitis and tracheitis have been observed. These trachea and ... causes high ammonia levels inside animal production buildings, especially in winter months when the ... concentrations. People begin to detect odors at 5–50 ppm. Irritation to mucous surfaces occurs at 100–500 ppm ...

  2. Abate Animal Heat Stress in Hot Weather

    https://ohioline.osu.edu/factsheet/AEX-151

    convective, radiative and evaporative heat transfer processes such as touching cool surfaces, exposure to high ... greater than 50 percent. Table 1 summarizes the body temperatures and comfort zones (surrounding ... Temperatures Comfort Zones Layers 105–109.4°F 55–70°F Pigs 101.6–103.6°F 50–70°F Cows 98–102.8°F 40–60°F Figure ...

  3. Decorate Solar Eclipse Viewing Glasses

    https://ohio4h.org/decorate-solar-eclipse-viewing-glasses

    Images. ALL SOLAR ECLIPSE VIEWING RISKS BORNE BY THE VIEWER. Any and all risks associated by viewing the ...

  4. Camera Obscura (Pinhole Camera)

    https://ohio4h.org/camera-obscura

    (INTERMEDIATE to ADVANCED level) |  PDF for PRINTING NOTE: It is never safe to look at the sun without proper ... sun during a total solar eclipse. A total solar eclipse occurs when the moon passes between the sun ... tracing paper should be between the tubes. The aluminum foil should face out. Using the pushpin, gently ...

  5. Solar Eclipse Shadow Play

    https://ohio4h.org/solar-eclipse-shadow-play

    ADVANCED level) |  PDF for PRINTING When a total solar eclipse occurs, some places will be completely engulfed in ... Point light source       Extended light source         Differences in shadows between a point light ... distinguish between the rays coming from the two sources. In Figure 1, light rays from both sources are ...

  6. Cork Spot and Bitter Pit of Apples

    https://ohioline.osu.edu/factsheet/plpath-fru-01

    addition of agricultural ground limestone to the soil at planting, according to soil test recommendations. ... Limestone should be added at three to five year intervals after planting, based on soil tests. In addition ... most common on Granny Smith, Delicious, Grimes Golden and Northern Spy in Ohio. Low soil pH, light ...

  7. Guide to Creating Food Plots for White-Tailed Deer

    https://ohioline.osu.edu/factsheet/anr-61

    not over-browsed. If consistent high levels of browsing occur, additional plots or acres would need to ... instinctively feed heavily on food with high carbohydrate levels before rutting activities begin to purposely ... provide high levels of carbohydrates that provide energy. Palatability of the food source(s) should also ...

  8. The Gastrointestinal Tract of the Horse

    https://ohioline.osu.edu/factsheet/1022

    in fat digestion. Amazingly, horses can digest and absorb relatively high levels of fat in their ... (target 2 g/kg BW) Kg Lb Traditional sweet or pelleted feeds “high starch” 50–65 < 1.5–2 < 3.3–4.4 ... Once swallowed, the food passes through the pharynx—a short, funnel-shaped, muscular tube between the ...

  9. Small Moon, Big Sun 1

    https://ohio4h.org/small-moon-big-sun-beginning

    a small moon cover the big sun during an eclipse? The answer is in the distance between Earth and the sun ... evidence to decide what will happen next. ratio. A number that shows the relationship between two amounts. ...

  10. Manure and Compost: Nitrogen Availability in Organic Production

    https://ohioline.osu.edu/factsheet/anr-34

    prevent excessive soil nutrient levels. Volatilization Losses Immediate incorporation or injection of ... Incorporation Bare Soil 40 50 75 90 No Incorporation Standing Crop 20 25 40 50 1 day Bare Soil 10 15 25 50 2 day ... Manure and compost nitrogen content and availability can vary greatly between species of animals that ...

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