CONTENTS ▶▶▶


6


24 14


26 17


ESPHM: How feeding affects health


Making any pig decision data-driven


Column Francesc Molist: 7 ways to lower feed costs


Sulphur and sulphate in pig diets: Is it a concern?


3 key trace minerals for sow productivity


28 NUTRITION


The feed additive ractopamine hydrochloride (RAC) is well known across the globe, but not because it is applied everywhere. In many countries its use is banned. Here’s a close look at the history and current use for this substance, along with research into possible alternatives.


11


HOUSING & EQUIPMENT


Outside Europe, an increas- ing number of sow farms are switching to group housing for gestating sows. Retrofit- ting is an option, yet it is a long-term investment. Af- fordable options may not always be the best in the long run. What needs to be considered?


The system is reminiscent of pig production in the UK, yet this feature story is all about Spain. When Eduard Cau Barrufet decided to add an outdoor division to his conventional farm, he deviated from the British approach in one respect: he opted for rapid field rotation.


18 FARM VISIT


▶ PIG PROGRESS | Volume 37, No. 4, 2021


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