Nutrition - The Horse Forum
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post #1 of 4 Old 07-22-2011, 10:06 PM Thread Starter
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Location: Orlando, FL
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Why do horses need salt in their diet? Does it change according to different conditions, like daily temperatures? I live in Florida and it's really hot. It's been really hot for a while now. I've been sprinkling a little salt in my mare's feed b/c she wont lick the salt block. I just know they need it but I want to know why. Thanks.
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post #2 of 4 Old 07-22-2011, 10:22 PM
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Why do you think you need to sprinkle it on her food? A horse will actively search out the things it only drinks when its thirsty, so she will only lick the salt block if she needs extra salt. If you feed any commercial feeds, she is probably getting enough already.

Honestly horses are able to adapt easily to all weather. Especially if she's been in Florida for awhile.
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post #3 of 4 Old 07-23-2011, 11:01 AM
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Salt is necessary for a variety of functions. It is the major electrolyte involved in maintaining osmotic pressure of body fluid, it is necessary for normal functions of the central nervous system and muscle contractions as well as transport glucose and waste products across the cell membranes. Salt will also encourage a horse to drink more. Typical horse feedstuff is very low in salt (.1%) so it needs to be supplemented. A horse will typically loose about 1 oz of salt per day in sweat, urine and feces under mild conditions and no work. It will increase dramatically with heat, humidity and workload.

If you feed concentrates, they will have roughly .5- 1% salt added to the mix. 4# will have .3-.6 oz of salt. At the lowest requirements, it is adequate with the additional salt the hay provides (.2-.3oz), but when you add heat and humdity, it falls short. Salt blocks are not the best option for getting additional salt into the horse. Many horses will just not sit there and lick it long enough to get what they need eventhough it is right there in front of them. Case in point. I have a group of 10 mares. They get both loose and block salt. A 50# block will last them over 4 months during the warmer weather. Not taking into account what dissolves, that's .7oz/head/day. In this hot spell, they're going through 3-4# per day or over 5oz/head/day of loose salt. Even with the salt block available, when they run out of loose there is a line at the feeder when I refill it. Sprinkling salt on her feed might actually be providing less than she needs. Hang a bucket with about 2 C of salt in her shed. Does she dive into it? If they're difficient, they will consume a large quantity than after 2-3 days drop down to a normal amount which would be around 4oz/day.

Do you ever see her licking metal? Salt will settle on it in coastal areas and that's another sign she needs more.
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post #4 of 4 Old 07-23-2011, 11:05 AM
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I provide loose salt, a loose mineral mix with calcium and phosphorus, as well as a salt block. The salt block is important because you may accidentally let the loose run out. They will die if they don't get salt. You will as well.

Celeste is offline  

feed , feeding , nutrition , salt

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