Review/Oorsig Volume 23, Issue 01 - Page 3

Volume 23 • Issue 01 • 2019 The Livestock Health and Production Review is published Bi-monthly by Vetlink Copyright reserved. Expressions of opinion, claims and statement of supposed facts do not necessarily reflect the views of the editor or publisher. While every effort is made to report accurately, the publisher or the editor does not accept any liability with regard to any statement, advertisement, fact or recommendation made in this magazine. Editor CONTENT Trace Mineral Nutrition of Beef Cattle Application of Injectable Trace Minerals 04 Probiotic Species in the Modulation of Gut Microbiota: An Overview 11 [CPD] Potential Effects and Interactions of Oxidative Stress and Trace Minerals on Semen Quality of Bulls Some Lessons Learned over Five Decades of Research Welcome to the first edition of the Review for 2019. We have partnered with Dairymail to handle our sponsors and advertisers and they will also be distributing the Review. In addition, you will be receiving a free copy of the Dairymail with every edition of the Review. The main theme of this edition is nutrition, with a focus on mineral and vitamin supplementation. It is fascinating to notice that there is a thread that connects all the articles. Factors that seem to be unconnected are shown to be interconnected in unexpected ways. Heinrich van Rijn Patron Danie Odendaal letters for publication. Send them to: The Editor, PO Box 232, GROENKLOOF, 0027 Tel: (012) 346 1590, 0825756479 Fax: 086 671 9907 admin@vetlink.co.za 28 EDITOR’s Note Layout and design contributions, topic suggestions and 26 What is Inflammation and why should you be Concerned? Madaleen Schultheiss We welcome any comments, 21 A Tribute to Veterinary Pioneers: Peter Newton Collier Production and advertising Vetlink Publications 18 Ruralvet - In the real world: Diatoms and Aloes as Feed Supplements Mark Chimes Publisher and Owner: 06 Prof Bath mentions how uroliths are caused by excess phosphorous and “Geeldikkop” is caused by chronic copper poisoning. Dr Joop Boomker ponders the fact that game will eat aloes in areas where there is not a saltpan to act as a lick. And whether these aloes do not perhaps contain the trace minerals that these animals crave. Especially since aloes tend to grow on the more mineral rich soils. Dr Johan van Rooyen has also observed the fact that antelope will eat certain aloes in the winter, despite aloes being extremely bitter. He also observes that the mineral content on a farm can vary tremendously from one area to the next. Prof. Arthington also mentions that it can be difficult to determine the mineral intake of animals since the mineral content can vary so much between different seasons and different areas on a farm. He suggests using injectable trace minerals to stimulate the animal’s immunity and improve production. Dr Connie Larson in turn, mentions how heat stress and gut integrity are the most common causes of inflammation and how this can be counteracted by supplementing performance trace minerals. Especially since heat stress can lead to leaky gut which leads to inflammation. Which in turn has a negative effect on production and reproduction. Azad et al, in turn, discusses how probiotic Lactobacillus strains have been found to increase gastrointestinal barrier function. Thereby reducing inflammation. They further comment on how various probiotic species have been reported to prevent many degenerative diseases, including obesity, diabetes, certain cancers, cardiovascular disease, malignancy, liver diseases, and irritable bowel disease. Dr Martin Ferreira explains how trace minerals help to reduce oxidative stress and the resultant sperm damage that leads to reduced fertility in bulls. And so, it turns out, everything is connected to everything else Enjoy the reading Warm regards Mark Chimes 3