Lactation Performance of Primiparous Holstein Dairy Cows in Early Postpartum Period an affected by feeding Dry glycerol
Euphrates Journal of Agricultural Science
2011, Volume 3, Issue عدد خاص بالمؤتمر الدولي الاول ( العراق / ايران 9, Pages 226-228
2011, Volume 3, Issue عدد خاص بالمؤتمر الدولي الاول ( العراق / ايران 9, Pages 226-228
Abstract
Abstract : Effects of feeding a dry glycerin product (minimal 65% of food grade glycerol, dry powder) to 20 primiparous Holstein dairy cows (10 control and 10 glycerin supplemented) on milk yield and composition were investigated. Dry glycerin was fed at 250 g/d (corresponding to 162.5 g of glycerol/d) as a top dressing to the common lactating total mixed ration. Study was carried out from parturition to 21 d postpartum. Individual milk was sampled from 3 consecutive milkings weekly and was analyzed for its components. Average milk yield and milk compositions were not affected by dry glycerin supplementation.
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