PSV-1 Injectable trace mineral supplementation on grazing beef cows: Effect on subsequent offspring birth weight and weaning weight. (8th October 2021)

• Record Type: Journal Article
• Authors: Pancini, Stefania; Currin, John; Stewart, Jamie L; Clark, Sherrie; Redifer, Tracey; Wege Dias, Nicholas W; Timlin, Claire L; Sales, Alvaro; Mercadante, Vitor R G
• Is Part Of: Journal of animal science. Volume 99(2021)Supplement 3
• Page Start: 309
• Page End: 309
• Publication Date: 2021-10-08
• Subjects: trace minerals -- grazing -- weaning weight; Livestock -- Periodicals; Livestock; Electronic journals; Periodicals; 636.005
• DOI: 10.1093/jas/skab235.567
• Languages: English
• ISSNs: 0021-8812

Abstract

Abstract: This study evaluated the effect of an injectable multi-mineral complex supplementation on grazing beef cows on subsequent offspring birth weight (BW) and adjusted weaning weight (AWW). Experiment 1 included 1, 128 Angus crossbred multiparous suckled cows, from 9 locations in Virginia, that were randomly assigned to one of two treatments: 1) One dose of an injectable trace mineral (6 mL; Multimin ® 90, Multimin USA, Ft. Collins, CO) at 71.4±16.8 d of lactation (n = 560); or 2) a negative control with no trace mineral injection (n = 568). In experiment 2, 986 Angus crossbred multiparous suckled cows, at 7 locations in Virginia, were randomly assigned to one of two treatments: 1) Two doses of an injectable trace mineral (6 mL; Multimin ® 90) at 118.3±17 days before calving and at 67.7±17.4 d of lactation (n = 494); or 2) negative control with no trace mineral injection (n = 492). All cows had ad libitum access to forage and water, and received additional mineral supplementation in form of mineral blocks. Calves were weaned at approximately 7 months of age, and 205-day AWW was calculated based on birth day, age of weaning and age of dam. No differences between treatments were detected for BW (33.7±1.01 kg; P = 0.50) and AWW (212.2±5.0 kg; P = 0.25) when only one dose of injectable trace mineral was administered to the dam at early lactation. Similarly, when two doses of injectable trace mineral were administrated BW (35.6±1.1 kg; P = 0.70) and AWW (259.4±6.1 kg; P = 0.83) did not differ between treatments. In conclusion, one or two doses of injectable trace mineral administrated at late gestation and/or during lactation had no effect on offspring BW and AWW.