Extensive comparisons of the effects of tropical shrub legumes rich in condensed tannins (CT) require well-conserved material. It is, however, unclear if the application of even gentle methods like freeze drying (lyophilization) affects the results in comparison to fresh material. Therefore, an experiment with the gas-pressure transducer technique, simulating ruminal fermentation dynamics in vitro, was conducted to investigate the effect of freeze drying on the ruminal nutrient degradability of three tropical multipurpose shrub legumes. Leaves of the CT shrubs Calliandra calothyrsus and Flemingia macrophylla and of the CT-free shrub Cratylia argentea were tested either in fresh form or lyophilized. In order to simulate practical feeding conditions, the legume leaves were incubated together with Brachiaria humidicola (1:2) for 144 h. Additionally, incubations were carried out either with or without polyethylene glycol (PEG) to be able to separate effects either dependent or independent of the CT. Only few differences were found between fresh and lyophilized leaves. These included that the proportion of apparently undegraded nitrogenous compounds was higher in fresh than in lyophilized leaves of Flemingia macrophylla, and freeze drying had a limited influence on volatile fatty acid production in Calliandra calothyrsus. The variables related to degradation dynamics (i.e., total gas production, the time until the point of inflection, apparent dry matter degradability), however, were not influenced. There was also no difference between CT and non-CT plants in that respect, as is also obvious from the lack of interactions of state of the plant material and PEG addition. This indicates that effects of freeze drying of shrub leaves on overall ruminal nutrient degradation in mixed grass-legume diets were minor.

A pot experiment was conducted to assess the fertiliser value of faeces from sheep fed with a diet supplemented with legumes free of or containing condensed tannins. Ten animals received the same five diets in different experimental runs of a double Latin Square design, all consisting of a low quality tropical grass ration, supplemented with 450g/kg legumes. Legume treatments were either solely Vigna unguiculata (a tannin free herbaceous legume) or mixtures of V. unguiculata with either Calliandra calothyrsus or Flemingia macrophylla (both shrub legumes rich in condensed tannins) in ratios of 2:1 and 1:2. Faeces from animals receiving the same diets were pooled and applied at two levels (20 and 80 mg N/kg soil) to pots with seedlings from the cultivar Mulato II, a Brachiaria grass hybrid. An acidic infertile tropical soil was used. Aerial biomass yield and plant N content were evaluated. The results seem to indicate that the N fertiliser value of faeces from sheep receiving a diet supplemented with tanniniferous legumes is not substantially reduced compared to diets free of condensed tannins. However, the data also indicate that nitrogen was not the most limiting element in the soil used since mineral fertilisation without extra nitrogen was efficient, too.

peer reviewed

Data from the nucleus herd at the International Trypanotolerance Centre (ITC) in The Gambia were used to evaluate the current N'Dama cattle breeding scheme implemented in a low input production system. Opportunities were investigated to further improve the breeding scheme through a comparison of alternatives to the current selection strategy. A deterministic simulation model was used to demonstrate the genetic and economic benefits of the different schemes. The breeding goal consisted of daily weight gain (from 15 to 36 months of age under high tsetse challenge conditions, DWG, g/day) and milk yield (milk off-take in the first 100 days of lactation, MY, kg). Substantial genetic response per year of 3.40 kg in MY and 0.25 g/day in DWG could be achieved. Simulation results showed that early selection of nucleus sires resulted in relatively higher genetic and economic responses compared to all other schemes investigated. For a practical breeding scheme (low input system), the scheme based on early selection of nucleus sires should be recommended since this leads to the best improvements in the overall breeding goal

Data from the nucleus herd at the International Trypanotolerance Centre (ITC) in The Gambia were used to evaluate the current N'Dama cattle breeding scheme implemented in a low input production system. Opportunities were investigated to further improve the breeding scheme through a comparison of alternatives to the current selection strategy. A deterministic simulation model was used to demonstrate the genetic and economic benefits of the different schemes. The breeding goal consisted of daily weight gain (from 15 to 36 months of age under high tsetse challenge conditions, DWG, g/day) and milk yield (milk off-take in the first 100 days of lactation, MY, kg). Substantial genetic response per year of 3.40 kg in MY and 0.25 g/day in DWG could be achieved. Simulation results showed that early selection of nucleus sires resulted in relatively higher genetic and economic responses compared to all other schemes investigated. For a practical breeding scheme (low input system), the scheme based on early selection of nucleus sires should be recommended since this leads to the best improvements in the overall breeding goal

With this issue of 2009, we bring 52 proceedings of the 98, which started life as presentations at the Annual 15th International Scientific Conference Research for Rural Development 2009 held at the Latvia University of Agriculture, in Jelgava, on 20 to 22 May 2009. In the retrospect of four months later, we can count the Conference as a great success. The theme - Research for Rural Development - attracted participation of 321 researchers with very different backgrounds. There were 4 presentations from Ukraine, 3 from Sweden, 2 from Belarus, 3 from Estonia, 1 from Belgium, 1 from India, 1 from Turkey, 10 from Lithuania and 64 from Latvia. Four independent reviewers estimated each report. The proceedings of the Annual 15th International Scientific Conference Research for Rural Development 2009 is intended for academics, students and professionals researching in the area of crop production, animal breeding, agricultural engineering, agrarian and regional economics, food sciences, veterinary medicine, forestry, wood processing, water management. The proceedings will also be useful for researchers in educational sciences.

This study assessed the capacity for designing and implementing agricultural and rural development policies, strategies, and programs in Nigeria. Data for this study were derived from initial consultations at the Federal Ministry of Agriculture and Water Resources (FMAWR), Federal Ministry of Women affairs and Social Development (FMWASD), and the Federal Ministry of Environment (FMEnv) early in 2008. Two consultation workshops were also held, one for relevant staff in the ministries, parastatals, and NGOs; and the other for relevant university professors and researchers. This was followed by a review of relevant literature and a more detailed survey of institutions and individuals. A sample of relevant institutions and individuals were purposively selected from the Federal Capital, Abuja, Oyo, Kaduna, Enugu Ogun, Benue, and Abia States. At each location, trained data collectors compiled a list of state and federal agencies, nongovernmental organizations (NGOs), and universities where 32 institutional questionnaires were administered, of which 29 were valid for further analysis. Similarly, 320 individual questionnaires were administered, of which 183 were valid for further analysis. The null hypothesis that job satisfaction and institutional incentive was independent of selected background information (gender, position, years spent on job, nature of institution, and level of formal education) of the experts was tested using the Chi square analysis. The respondents were mostly male (23 of 24) and were either heads of departments (10 of 24) or directors, their deputies and their equivalents (12 of 24). Most of the respondents (22 of 24) exhibited an indifferent perception to the general environment and processes involved in policymaking. Reported capacity- strengthening efforts (for 13 of the 24 institutions surveyed) amounted to an average cost of US$76.98 per person per day for the 1-3 weeks training provided. While the practice of strategic planning was widespread, mission statements were widely used in only two-fifths of selected institutions; near-term strategies were widely used in about one third; and long-term visions were widely used in a little more than one third. Even the practice of participation in planning from a broad range of personnel within the institution was only widely used in one third of the selected intuitions. Similarly, written guidelines were widely available (22 of 24), but fully disseminated in less than half of the selected institutions. However, respondents claimed that the financial guidelines were being followed strictly, but half of the respondents (12 of 24) did not know the frequency of receiving reports from the accounting system. Most of the selected institutions had both a human resource management unit (70.8 percent) and dedicated staff training centers (54.2 percent), but about half of the respondents neither knew the regularity of review of staff training needs nor when last staff training needs were assessed. The implication of this is that the extent to which the training exercises match the skill gaps of staff and capacity requirements of the institutions were unknown. Between 75–80 percent of the selected institutions engaged in some collaborative programs and linkages with other government institutions, relevant NGOs, international development partners, training institutions, and research institutions. These collaborative ventures worked mainly through cost sharing, exchange, joint engagements, and sharing of reports. Over 70 percent of the individual respondents (experts) had at least a Master of Science (MSc) or its equivalent. The majority (79.7 percent) were male who had spent more than 10 years on the job. About half of the experts worked with universities, compared to 13.1 percent in the ministries and 37.7 percent in parastatals. Their expertise cut across a broad range of subjects relevant for designing and implementing agricultural and rural development policies— more than one quarter were experts in agricultural economics, extension, communication, rural development, and rural sociology. The most frequently mentioned (51.4 percent) person responsible for agricultural and rural development programs, policies, and strategies was the officer-in-charge, but the list of stakeholders was long and varied. Over 60 percent of the respondents stated that at least some consultation was done with stakeholders through face-to-face communication at stakeholder fora, meetings, conferences, summits, and talks. According to the respondents, the major concerns of stakeholders about agricultural and rural development policies, programs, or strategies were the extent to which they achieve stated goals. More than half of the respondents claimed that research evidence such as the achievements of previous and on going programs, results of fresh surveys, and extension and On farm Adaptive Research (OFAR) reports were used to support the development of agricultural and rural strategies, policies, and programs. This evidence was obtained mainly from agricultural institutions and universities as well as available reports, journals, and publications. The respondents stated that the major sources of funds for the process of agricultural and rural development policy were the Federal Government of Nigeria (FGN), The World Bank, state and local governments, and the Food and Agriculture Organization of the United Nations (FAO). They also stated that the various agricultural and rural development policies, strategies, and programs largely benefited the poor (52.5 percent). It was noteworthy that respondents preceived that the number of women at the ministerial and research levels of agricultural and rural development was less than 1 percent. Even at the level of rural farming communities, only 15.3 percent of the respondents felt that there were more women. Furthermore, only 27.4 percent of the experts incorporated environmental issues in their work and only 20.4 percent undertook environmental analysis in their work. Finally, 91.3 percent were indifferent to their job, meaning that it would be difficult for them to perform to the best of their abilities without allowing them greater freedom in the performance of their jobs and work out a reasonable and acceptable reward package for the job done. The results of the Chi square tests showed that the experts’ perception of job satisfaction and institutional incentives is independent of all the background variables considered. The main capacity gaps for designing and implementing agricultural and rural development policies in Nigeria included 1) the need to entrench democratic principles and transparent leadership and 2) to bridge the gap between universities, research institutions, and policymaking and implementing entities. There was also a limited understanding of the relationships between institutional, human, and material resources versus impact of policy on target end-users at every level in the policy design, planning, implementation, and monitoring and evaluation. Finally, there was a need for the institutionalization of effective measures for tracking changes in the role of evidence in strategic, gender-sensitive planning, through regular monitoring and evaluation, impact assessment, adequate documentation, and commitment to utilize the results of the exercise. Efforts should also be targeted towards improving the quality, gender sensitivity, timeliness, and circulation of policy-relevant evidence.