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<blockquote data-quote="Rydero" data-source="post: 1665668" data-attributes="member: 38101"><p>So. Assuming a 1400lb Brahman cross cow in good body condition a couple months into lactation Desired average daily gain .25lbs/day. If your stockpile is at 6% protein and 55 TDN % (I used the value they have for overwinter grass but bumped the feed value a little assuming it would be a little better there). I put the stockpile grass as $0/lb (I'd need some details to give it a value) From your earlier post .1 bales per cow of hay I put 1.5lbs a day of 14% protein 51.5 TDN% hay at $75/bale in as well.</p><p></p><p>All things being equal except 2.5 lbs/h/d of 32% liquid protein (generic nutrition values I'd need info from the tag to be exact) at $235/ton. </p><p></p><p>Without the protein - Net energy for maintenance total (Mcal) is 17.05 (18.16 desired), protein (grams) is 951 (1343 desired) - cows will lose 1/2 a body condition score in 213 days on this ration and costs .08/h/d </p><p></p><p>With protein - Net energy for maintenance total is 17.34 (18.16 desired), protein is 1263 (1344 desired) - cows will lose 1/2 a body condition score in 287 days and cost is .38/h/d </p><p></p><p>If you fed 2.5 lbs of barley a day instead - Net energy for maintenance total is 18.12, protein 1026 - cows would lose 1/2 a body condition score in 400 days and cost .33/h/d </p><p></p><p>They'll be losing body condition more from lack of energy than lack of protein and the supplement does very little to help that for the cost imo. For me it's ok at certain points for cows to very slowly lose some condition to save me thousands but that's me. What do you think?</p></blockquote><p></p>
[QUOTE="Rydero, post: 1665668, member: 38101"] So. Assuming a 1400lb Brahman cross cow in good body condition a couple months into lactation Desired average daily gain .25lbs/day. If your stockpile is at 6% protein and 55 TDN % (I used the value they have for overwinter grass but bumped the feed value a little assuming it would be a little better there). I put the stockpile grass as $0/lb (I'd need some details to give it a value) From your earlier post .1 bales per cow of hay I put 1.5lbs a day of 14% protein 51.5 TDN% hay at $75/bale in as well. All things being equal except 2.5 lbs/h/d of 32% liquid protein (generic nutrition values I'd need info from the tag to be exact) at $235/ton. Without the protein - Net energy for maintenance total (Mcal) is 17.05 (18.16 desired), protein (grams) is 951 (1343 desired) - cows will lose 1/2 a body condition score in 213 days on this ration and costs .08/h/d With protein - Net energy for maintenance total is 17.34 (18.16 desired), protein is 1263 (1344 desired) - cows will lose 1/2 a body condition score in 287 days and cost is .38/h/d If you fed 2.5 lbs of barley a day instead - Net energy for maintenance total is 18.12, protein 1026 - cows would lose 1/2 a body condition score in 400 days and cost .33/h/d They'll be losing body condition more from lack of energy than lack of protein and the supplement does very little to help that for the cost imo. For me it's ok at certain points for cows to very slowly lose some condition to save me thousands but that's me. What do you think? [/QUOTE]
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