Evaluation of alfalfa leaf meal for dairy cows. Quarterly report, July 1, 1997--September 30, 1997

A series of laboratory tests and two feeding experiments were conducted to determine the quality and evaluate the feeding value of alfalfa leaf meal (ALM) for dairy cows. An experiment was also conducted to enhance the protein value of ALM for ruminants. The fiber content of 6 different samples obtained from the processing plant from November 1996 to August 1997 were variable, ranging from 28.8 to 44.5% of DM for NDF, and from 16.0 to 28.6% of DM for ADF. Ash content ranged from 10.1 to 13.8% of the DM. The protein content of ALM was fairly constant and ranged from 21.8 to 23.6% of DM. Amino acids comprise at least 70% of the total CP in ALM, but essential amino acids comprise only about 35% of the total CP. The amino acid profile of ALM is similar to that of alfalfa hay, but markedly different from that of soybean meal. Overall, ALM produced to date is similar in nutrient content to prime alfalfa hay. In one of the feeding trials, ALM pellets were used to replace part of the hay in diets for early lactation cows. The results indicate that ALM pellets can make up as much as 16% of the diet DM in replacement of an equivalent amount of high quality chopped alfalfa hay without adverse effects on production or rumen health. In an other study, ALM replaced soybean meal to supply up to 3 3 % of the total CP in the diet without any detrimental effect on production. However, in each study, dry matter intake was reduced when ALM was included in the diet at or above 15 to 16% of the DM. Although this reduction in feed intake did not influence milk production over the short duration of these studies, it is not known what would happen if ALM was fed over long periods of time. Also, these results should not be interpreted to suggest either that ALM may used to replace all the hay in the diets or that ALM in meal form may be used to replace hay in the diets. Moreover, feed consumption by cows used in these experiments was rather high and somewhat atypical of most cows

Security Applications for Converging Technologies

The impact of converging technologies on legal practice and criminology is being investigated in a forward looking study intended for practitioners and policy makers in the field of legislation, crime prevention, and law enforcement. This report consists of three parts. The first part describes the state of the art and future expectations on nano-, bio-, ICT and cognitive science and technology, as well as their convergence. The second part describes the (future) applicability of converging technologies to our application domain, in particular in three cases. This part ends with scenarios that are used as a means to ‘visualize’ the developments and an input for the impact analysis. In the third part the scenarios are analysed on their ethical, legal and social implications. This part describes the major social and normative trends that are observed. CONTENT: 1. Introduction 2. Nanotechnology 3. Biotechnology 4. Information technology 5. Cognitive sciences 6. NBIC convergence 7. Relevance of converging technologies for security applications 8. Scenarios for the application of converging technologies in the security sector 9. Major trends and social and normative impact assessment 10. Conclusions 11. Addendum: The trends and the normative framework of the Dutch criminal la