This paper reviews studies of the ovarian activity of lactating dairy cows on 11 farms in 2 areas of Iceland during 1983-86 and 1988-89. The cows on 10 farms were housed in tie-stalls and on 1 farm in a free stall. On 4 of the farms the cows were milked in a separate milking parlour. They were...

The pasture used in the study was on reclaimed peat soil commonly used for hayfields, the dominant grass species being Poa pratensis, Alopecurus geniculatus and Deschampsia cespitosa. Artificial fertilizers (NPK) were applied in May each spring, with an additional dressing of N in late summer of...

12 adult ♀ Icelandic sheep were housed in a bright, spacious building. No artificial light was used so the ewes experienced natural changes in the photoperiod from September to April. They were fed hay twice a day and had access to water and minerals ad lib. Blood was collected 3 times a week and...

Abstracts from papers presented at this conference, held at Uppsala, Sweden, on 17-20 June 1991, are arranged in 3 symposia on crop production in resource-saving agriculture (4 papers); economic livestock performance and demands on animal welfare and health (5 papers); and environmental...

The effect on the prolificacy of ewes of discontinuing nutritional flushing immediately after mating was studied at Hvanneyri Experimental Station in southwest Iceland between 1973 and 1976 with a total of 480 ewes. Age at mating ranged from 19 months to 9 years. Each year ewes were in 2 groups...

Data on 77 dam-daughter pairs were analysed to estimate the h2 of willingness to run, as measured by temperament score. Three classes of willingness to run were recorded: poor, moderate and outstanding. The h2 of the trait was 0.85 plus or minus 0.11. All the daughters were the progeny of 1...

Four experiments on the utilization of cultivated pastures in Iceland were carried out over a 4-yr. period; milk yields were not significantly affected by size of plot grazed, housing cows at night or feeding supplementary concentrates to cows grazing good quality pasture. Details are given of the...

January 1974, dermestid larvae were found in the bird-skin collection of the Natural History Museum at Reykjavik in Iceland. The larvae proved to belong to the North American species Reesa vespulae (Milliron), which has colonised northern Europe in the past 20 years and become an important pest in...