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https://doi.org/10.5713/ab.22.0218    [Accepted] Published online November 14, 2022.
Effects of peripartal glucose precursor supplementation on lactation performance and metabolic health of primiparous and multiparous dairy cows
Muhammad Uzair Akhtar1  , Hifzul Rahman2  , Talat Naseer Pasha3  , Muhammad Avais4  , Nauman Khan5  , Ghazanfar Ali Chishti1  , Mubashar Ali1  , Muhammad Imran6  , Muhammad Naeem Tahir7  , Muhammad Naveed-ul- Haque1,* 
1Department of Animal Nutrition, University of Veterinary & Animal Sciences, Outfall road, Lahore 54000, Pakistan
2Department of Livestock Production, University of Veterinary & Animal Sciences, Outfall road, Lahore 54000, Pakistan
3University of Education, College Road, Township, Lahore 54770, Pakistan
4Department of Veterinary Medicine, University of Veterinary & Animal Sciences, Outfall road, Lahore 54000, Pakistan
5Pakistan Holstein Pvt. Ltd., Risalpur 23200, Pakistan
6Department of Animal Nutrition, KBCMA College of Veterinary and Animal Sciences (Sub-campus University of Veterinary and Animal Sciences), Narowal 51600, Pakistan
7University College of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
Correspondence:  Muhammad Naveed-ul- Haque, Tel: +92-333-4783691, Fax: +92-42-99211461, Email: muhammad.naveed@uvas.edu.pk
Received: 1 June 2022   • Revised: 8 September 2022   • Accepted: 30 October 2022
Abstract
Objective
Hyperketonemia remains a major metabolic issue of serious milk production and a major health concern in early lactation cows. Oral supplementation of glucose precursors (GP) can be used to prevent hyperketonemia in dairy cows. The objective of this study was to compare the beneficial effects of orally supplementing a mixture of GP on metabolic health indicators and milk production status of primiparous and multiparous dairy cows.
Methods
Twenty-eight Holstein cows were blocked by expected date of parturition, previous lactation yield, and parity. The cows were randomly allocated to one of the four treatment groups (n = 7 cows/group) based on their parity and GP supplementation: 1) primiparous cows fed basal diet only (PP-CON), 2) primiparous cows with oral supplementation of GP (PP-GP), 3) multiparous cows fed basal diet only (MP-CON), and 4) multiparous cows with oral supplementation of GP (MP-GP). Glucose precursor (Glycoline liquid) was orally drenched (300 mL/day) in GP cows from 7 days prepartum through 7 days postpartum. Other than GP supplementation, all cows were fed similar pre- and postpartum basal diets.
Results
In both pre- and postpartum periods, serum glucose concentration was increased, whereas β-hydroxybutyrate and free fatty acids were decreased in GP cows compared with the CON cows. Milk yield and milk components were statistically not different between GP and CON cows over the first 9 week of lactation. The yield of actual milk, energy-corrected milk, 63-days cumulative milk, colostrum yield, and calf birth weight remained higher in MP cows compared with PP cows.
Conclusion
Oral drenching of GP around calving can be recommended to successfully improve the metabolic health and reduce the negative effects of hyperketonemia not only in multiparous but also in primiparous dairy cows.
Keywords: Glucogenic Precursor; β-Hydroxybutyrate; Multiparous Cow; Periparturient Cow; Primiparous Cow; Propylene Glycol


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