Passer au contenu principal

Your internet browser is out of date and not supported by this website. For the best viewing experience on wool.com, please update your browser to one of the options below.

Mozilla Firefox Google Chrome Safari Microsoft Edge
AWEX EMI 1262 +13
Micron 17 1731 +26
Micron 18 1643 +16
Micron 19 1570 +18
Micron 20 1519 +10
Micron 21 1510 +19
Micron 22 1500 +12
Micron 23 1479n +25
Micron 25 778n +48
Micron 26 620n -2
Micron 28 460 +15
Micron 30 388 +8
Micron 32 338n +3
Micron 16.5 1810 +32
MCar 751 +6

Calcium and magnesium deficiencies in pregnant and lactating ewes

Clinical calcium deficiency (hypocalcaemia or milk fever) can result in ewe deaths either during the last six weeks of pregnancy or during the first month after lambing. Symptoms include muscle tremors, being unable to rise and subsequent death. Clinical magnesium deficiency (hypomagnesaemia or grass tetany) can result in ewe deaths, typically when ewes are grazing grass-dominant pastures or cereal crops in winter and early spring. Symptoms include staggering, incoordination and sudden death. Hypocalcaemia and hypomagnesaemia can cause ewe mortalities, and lambs from affected ewes will usually die. Lambing difficulty and complications from birth may also be increased, reducing survival.

Articles That Might Interest You

Recognising and preventing metabolic disease in lambing ewes
Optimising ewe nutrition during pregnancy and lactation is critical for the health, productivity and survival of ewes and their lambs. This article covers risk factors, what to look for, and how to prevent and treat two of the common metabolic disorders seen in pregnant and lactating ewes – pregnancy toxaemia and hypocalcemia. Read more
Preparing low worm-risk paddocks
Preparing low worm-risk paddocks to prevent sheep from heavy worm burdens is a key strategy in effective and profitable worm control. This article covers strategic preparation methods for lowering the worm-risk of paddocks. Read more
Management targets for increased productivity and profitability
Ewe nutrition during pregnancy and lactation plays a major role in the productivity and survival of the ewe and her lambs. Here we have summarised the management targets for optimum productivity and profitability along with what to do and what to avoid when managing ewes to optimise lamb survival. Read more
Contact Us Legal
Contact Us Legal

Sitemap

Resources

Sheep nutrition over summer and autumn Why Western Australian woolgrowers should stay with wool Reaping the benefits of pregnancy scanning Where to start with addressing salty land Recognising and preventing metabolic disease in lambing ewes Preparing low worm-risk paddocks Management targets for increased productivity and profitability Making more money out of wool sheep: Data to decisions, markets and management Driving productivity with EID Making sense of ASBVs and Selection Indexes Best-practice shearing and crutching Preparing for a successful joining Strategies to increase conception and reproductive rates Australian wool production is in the box seat to help livestock industries become part of the climate solution Wool bioharvesting technique aims to provide woolgrowers with choice Increasing your bottom line with agtech Strategies and tactics for the season Raising the bar with lamb survival Feed budgeting 101 What to look out for with stock water quality and some tips to help Passengers vs Performers Making cent$ of carbon and emissions on-farm Wean to manage Agtech wrap: recent agtech developments for woolgrowers

Publications & Other Resources

Tackling Tough Times Webinar – Session 1 Tackling Tough Times Webinar – Session 2 Feed Budget Tables – Green Feed Budget Tables - Break of Season Feed Budget Tables - Dry/Drought Making More From Sheep Condition Scoring of Sheep Shearing Shed Safety Lifetimewool ParaBoss Visual Sheep Scores Pain relief at lamb marking Best-practice lamb marking FeralScan AWI Workshops Information AWI Change Makers Episode 6: Lambing paddock planning AWI Change Makers Episode 2: Weaning to manage Winning With Weaners webinar AWI Change Makers Episode 1: Lambing mob size AWI Change Makers Episode 7: Scanning to manage AWI Change Makers Episode 4: Ewe condition scoring AWI Change Makers Episode 5: Joining time and length AWI Change Makers Episode 3: Ram Performance Management Standard Reference Weight calculator Winning With Weaners feed budget tables Sheep Genetics Understanding MERINOSELECT ASBVs Factsheet Sheep Genetics MERINOSELECT Indexes Factsheet AWI Prepare your sheep for shearing Factsheet AWI Dealing with shearing cuts Factsheet The value of pregnancy scanning Checklist for pregnancy scanning and ewe management from joining to lambing Pregnancy scanning: an ultra-sound investment Resource guide for sheep reproduction Stock water Pregnancy toxaemia fact sheet Hypocalcaemia fact sheet Calcium and magnesium deficiencies in pregnant and lactating ewes Wool harvesting engagement checklist

Newsletters

Summer Newsletter 2024 Autumn Newsletter 2024 Winter Newsletter 2024 Spring Newsletter 2024 Summer Newsletter 2025 Autumn Newsletter 2025

Events

AWI Wool Trip WA Ask the Chairman and Board of Directors Webinar Webinar: Introducing the Australian Wool Traceability Hub Tackling Tough Times Webinars Tackling Tough Times Webinars Tackling Tough Times Webinars Tackling Tough Times Webinars Tackling Tough Times Webinars AWI webinar: Why stay in wool sheep? Webinar: Woolmark+ Australian Wool Insetting Program Past Events

Contact Us