FeedChannel

Topic 5: How can I protect animals from mycotoxins ?

Tue, 27 Aug 2024 08:00:00 GMT

In this final video, Vito D’Ascanio answers crucial questions about protecting animals from mycotoxins. He discusses specific ingredients that can inhibit mycotoxins, their mechanisms of action, the potential risks to humans, and natural substances that can help mitigate mycotoxin risks.

Topic 4: Can My Animals Adapt to Mycotoxins?

Mon, 19 Aug 2024 09:05:59 GMT

Gunther Antonissen explores the potential for animal adaptation to mycotoxins and the implications for animal health and nutrition.

Topic 3: How Can I Avoid Mycotoxin Contamination During the Food/Feed Process?

Tue, 13 Aug 2024 08:29:10 GMT

Damien Preveraud provides practical strategies and tips to prevent mycotoxin contamination during food and feed processing.

Topic 2: How Can My Environment Influence the Development of Mycotoxins?

Tue, 23 Jul 2024 08:01:00 GMT

Alain Froment discusses the environmental aspects that can affect mycotoxin development and offers insights into managing these risks.

Topic 1: Where Does My Mycotoxin Problem Come From?

Mon, 15 Jul 2024 09:09:13 GMT

Florence Forget delves into the origins of mycotoxin contamination, shedding light on the various factors that contribute to this issue.

Webinar #1: Oxidative Stress in Animal Production

Thu, 04 Mar 2021 10:00:39 GMT

Speakers: Prof Peter Surai, Dr Mario Estevez and Dr. Pierre-André Geraert

The basis of oxidative stress (Prof Peter Surai) and its impact on meat quality (Dr Mario Estevez) & share questions and answers during the roundtable.

Questions and Anwers

Q: A comment on flavonoïds, even if they are absorbed at low level some of them play an indirect role in inducing at gene level endogenous antioxidant systems.

Reinforcing the anti-oxidant defenses of the gut definitely improve its resistance to aggressive factors such as dietary ones (induced by mycotoxins for instance) or induced by microorganisms (bacteria, virus). Polyphenols and flavonoids may bring antioxidant benefits reinforcing the host response to xenobiotics.

Q: Is there a significant difference on the meat between chicken fed with Organic selenium and another fed with mineral selenium?

We assume that you mean organoleptic properties: improving the antioxidant status of the meat often is "indirectly" perceived by consumers influencing their choice. The conservation of the meat is also improved reducing the changes in color, texture,.. during storage or processing. Drip losses are clearly reduced when birds receive an organic selenium source compared to a mineral one.

Q: Oxidative impaires male fertility .. What about female ?

Indeed, the spermatozoids are clearly affected by oxidation. But ovocytes and particularly their membrane is also rich in polyunsaturated fats and prone to oxidation. Most parameters linked to egg production such as the export of vitellogenin by the hepatocyte toward the ovary is conditioned by membrane phospholipids. Preserving them from oxidation will help to enhance fertility. Hatchability is also clearly affected by oxidative stress situations and can be restored by using the right antioxidant solution.

Q: You said free radicals are used as weapons against bacteria, play a role of messenger: what about (too) high antioxidant intake?

Indeed, you're right. Free radicals are normal elements in the metabolism that help our body to get rid of xenobiotics. Antioxidant have to be balanced and an excess of one will not compensate for a deficiency of another and might event counteract the benefits of their nature. Proposing a balanced of efficient antioxidant solutions is thus key to improve animal performance under challenging conditions.

Q: Is oxidative stress affecting fertility ?

yes indeed, hot conditions and ageing are good examples of oxidative stress that affect fertility. An optimal balance of antioxidants has long been shown to improve fertility in a wide range of animal species including human.

Q: Is oxidized fat in the diet a source of oxidative stress?

Yes, oxidized fat can induce some toxicity depending the level and thus increase oxidative stress to the animal. It has long been worked at, but nowadays it is sometimes difficult to link the actual used index (iodine, …) to the decreased performance. However, lipid peroxydes have clearly a negative effect on sensitive molecules to oxidation. Antioxidant systems can help to alleviate those negative effects, particularly the selenoprotein Glutathione peroxidase 2 have been demonstrated to detoxify different lipid peroxides.

Oxidative Stress in Animal Production Roundtable

Thu, 04 Mar 2021 09:59:49 GMT

Speakers: Prof Peter Surai, Dr Mario Estevez and Dr Pierre-André Geraert

Prof Peter Surai, Dr Mario Estevez and Dr Pierre-André Geraert held a Questions and Answers session on Oxidative Stress in Animal Production.

Webinar #1: Oxidative Stress in Animal Production
On the basis of oxidative stress (Prof Peter Surai) and its impact on meat quality (Dr Mario Estevez) & share questions and answers during the roundtable.

Organic Selenium, Health and Reproduction and Mycotoxin Management

Tue, 01 Sep 2020 00:00:00 GMT

Speakers: Dr N. L. Whitehouse, Michele De Marco and Dr M.Z. Toledo,

Selisseo® Organic Selenium

Bio-efficacy of hydroxy-selenomethionine in dairy cows -- N. L. Whitehouse, University of New Hampshire, Durham, NH, USA
Is dietary selenite transformed into elemental selenium by rumen micro-organisms? Mineral and organic selenium form comparisons in cows -- Michele De Marco,Adisseo France SAS, 03600 Commentry - France

Health and Reproduction

Effect of feeding rumen-protected methionine pre- and postpartum on health, herd exit dynamics and time to pregnancy in multiparous dairy cows -- M.Z. Toledo, University of Wisconsin-Madison, Madison, WI, USA

Unike® Plus Mycotoxin Management

Effects of supplemental mycotoxin deactivator on lactation performance of Holstein cows fed natural mixed mycotoxin contaminated feed -- N. L. Whitehouse, University of New Hampshire, Durham, NH, USA

Virtual Roundtables focused on Adisseo Ruminant Research #2/4
When the American Dairy Science Association (ADSA) annual meeting went virtual in 2020, Adisseo took its 18 sponsored research trials virtual too. During a series of four Virtual Roundtables, researchers summarized timely trial findings and answered important attendee questions.