Abstract
Approximately 75% of ewes are housed in Ireland for some portion of the winter, normally the late gestation period. This coincides with a large increase in dietary requirements, with 80% of lamb birth weight laid down in the final two months of gestation (Robinson, 1990) and also udder development during this period. Traditionally, these nutritional requirements were met by feeding grass silage ad libitum and supplementing with concentrates on a stepped rate with advancing pregnancy. With the introduction of the decoupled single farm payment and an ever-decreasing labour supply, sheep producers are looking for financially attractive, low labour alternatives and a concentrate based diet may be one such alternative. The objectives of this experiment were to compare an all concentrate diet supplemented with different fibre sources with the standard silage based diet supplemented with concentrates on feed intake, ewe performance and lamb growth to weaning.
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