Environmental sustainability and development in Nigeria: beyond the rhetoric of governance

In Nigeria, like most present day societies, various measures have been embarked upon with regards to environmental sustainability as an aspect of socio-economic development. This is no doubt not unconnected with the recognition of the role of the environment in facilitating optimal social functioning and therefore, the need to protect it not just for the present but for the future as well. However, while these various efforts are reflected in a plethora of existing government agencies and documents, there has also been a corresponding increment in the challenges facing the environment. From desertification, deforestation, environmental pollution and many others, the environment in Nigeria has continued to suffer. With a combination of neo-Marxist political economy and decision-making theory as its tools of analysis, it is the contention of this paper that environmental policies and governance in Nigeria have continued to be a reflection of contradictions in deeds and intentions as policies counteract each other. Based mostly on secondary data and the review of existing literature, this paper summits that government pronouncement and actions on environmental sustainability must reflect linkages with other policies of development in order to ensure structural harmony and therefore, achieve full impact if success is to be ensuredKeywords: Environmental sustainability, Development, Governance. Nigeri

MANFAAT DAUN LAMTORO (Leucaena leucocephala DALAM PAKAN AYAM PEDAGING DIUKUR DARI PENAMPILAN PRODUKSI

PERFORMANCE OF BROILERS FED THE LAMTORO (LEUCAENA LEUCOCEPHALA) LEAF MEAL IN THE DIETS. The utilization of lamtoro (Leucaena leucocephala) leaf meal (LLM) in broiler diets was investigated employing 0, 5, 10, 15 and 20% levels substituted to the based diet (control). In this experiment, 100 birds were randomly allocated into five groups of treatments. Each treatment was repeated into four replications with five birds per each replication. The five dietary treatments were allotted to the birds in a completely randomized design. The birds were fed experimental finisher diets. Feed and water were provided ad libitum. Effect of LLM inclusion up 20% on feed intake (g),  live weight gain (g) and feed conversion did not differ significantly  (P ˃ 0.05).  It may be inferred from these experiments that LLM  up to 20% can safely be substituted to broiler based diet.Keywords: Lamtoro leaf, broiler, performanc

PENGARUH PENGGUNAAN MINYAK KELAPA DALAM RANSUM TERHADAP BOBOT BADAN AKHIR, BOBOT DAN PERSENTASE KARKAS, SERTA PERSENTASE LEMAK ABDOMINAL PADA AYAM BURAS SUPER

UTILIZATION EFFECT OF COCONUT OIL IN RATION ON BODY WEIGHT, PERCENTAGES OF CARCASS AND ABDOMINAL FAT IN SUPER NATIVE HENS. This study was conducted to evaluate utilization effect of coconut oil in ration on body weight, percentages of carcass and abdominal fat in super native hens. This study was involving hundred unsexed super native hens at ages of eight weeks with the average initial body weight of 862.24 g ± 44.13 g. The treatments were ration without coconut oil (CO) utilization (R0), ration of 99.5% basal added with 0.5% CO (R1), ration of 99% basal added with 1% CO (R2), ration of 98.5% basal added with 1.5% CO (R3), and ration of 98.0% basal added with 2.0% CO (R4). The completely randomized design was applied as design with five treatments consisted of five replications at each treatment. Each experimental unit was put four heads of super native hens. The significant treatments were tested by Duncan’s test. Variables measured were life body weight, slaughter body weight, carcass weight and carcass percentage as well as abdominal percentage. Results showed that utilization effect of coconut oil in ration had the same effects on percentages carcassand abdominal fat, but had significant effect on life body weight and carcass weight. Therefore, it was concluded that utilizatilization of coconut oil up to 2 percents in ratio increased life body weight and carcass weight. Keyword: carcass weight, coconut oil, super native chicken

Effect of Different Level of Energy and Crude Fiber From Sawdust in Diets on Carcass Quality of Broiler

This study was conducted to investigate the effect of different level of energy and crude fiber in diets containing sawdust on carcass quality of broilers. A total of 120 broilers were used for the research. The experiment utilized a completely randomized design in 2 x 3 factorial arrangement of treatments consisting of two dietary concentrations of energy and three dietary concentrations of crude fiber. Each treatment consisted of 4 replications (5 birds each) was reared during 35 days. The birds were housed in battery cages with ad libitum access to feed and water. During the experiment, feed intake, carcass yield, abdominal fat, blood LDL-cholesterol and HDL-cholesterol were measured. Data were subjected to the analysis of variance test followed by least significant difference test (LSD). Results showed that the diet with 3,100 Kcal/kg ME and 11% crude fiber significantly decreased feed intake, abdominal fat percentage, and blood LDL-cholesterol, but did not affect final body weight and the value of blood HDL-cholesterol and had the good value of carcass percentage. The diets containing sawdust with higher level of energy content decreased feed intake and the higher level of crude fiber decreased final body weight, carcass percentage and abdominal fat. Optimum broiler performance and carcass quality was obtained by diet formulated to contain 3100 Kcal/kg ME and 11% crude fiber

The production performance of native chicken by the utilization of Aleurites mollucana L. (pecan) seed flour in feeding

The study aimed to determine some effects of Aleurites Mollucana L (pecan) seed flour on the performance of native chicken production. Technically, this study used 100 native chickens. An experimental method was conducted using a completely randomized design (CRD). In addition, this research used 5 treatments with 5 replications. There were 25 experimental units, where each unit employed 4 native chickens. The treatments used were P0 (Control), P1 (Basal Feed + 1% of pecan seed flour), P2 (Basal Feed + 2% of pecan seed flour, P3 (Basal Feed + 3% of pecan seed flour), P4 (Basal Feed + 4% of pecan seed flour). Variables observed consist of weight of live native chicken, carcass’s weight and percentage, meat’s cholesterol and percentage, abdominal fatty’s percentage, spleen’s weight and percentage, heart’s weight, and percentage, and liver’s weight and percentage. Methodologically, data were analyzed using Analysis of Variance (ANOVA) from RAL. However, if there were differences between treatments and Duncan’s multiple distances, a further test was applied. As result, the study demonstrated that weight of live native chicken, carcass’s weight, abdominal fat percentage, spleen’s percentage, heart’s percentage, liver’s weight, and percentage had significant difference (P 0.05). It was concluded that the 4% addition of TBK (Aleurites Mollucana L), or pecan, seed flour, in feeding provided the best performance of native chicken’s production. Further, it was recommended to conduct a further study using pecan seed oil to reduce saponins in pecan seed

Production and production risk of broiler farms In the Regency of North Minahasa - Indonesia

The broiler is one of the potential husbandry commodities to be developed, but its development faces various risks, particularly production risk. This is indicated by fluctuating mortality of broiler in each period. This research aimed to analyze some production factors determining production and production risk of broiler production activity in the Regency of North Minahasa, Province of North Sulawesi.  In addition, the research's site was purposively determined, such as six villages representing three districts (District of Dimembe, Kauditan, and Kalawat) having the largest population of breeders under partnership program in the Regency of North Minahasa. From each village, then, breeders were selected by sampling method, comprising 27 breeders of Village of Dimembe, 18 breeders of Village of Matungkas, 19 breeders of Village of Kauditan Satu, 16 breeders of Village of Kauditan Dua, 13 breeders of Village of Kolongan and 10 breeders of Village of Suwaan. The sample of breeders was 100 respondents of the breeder. Further, data collected by survey and analyzed employing Just and Pope Analysis to know some production impacts against production and production risk of broiler. In conclusion, the research shows that the variable of a total of feed, heater, ammotrol, rice husk, and a total of labors could improve broiler production, and variable of Day Old Chick (DOC) could decrease broiler production. Variable of a total of feed, vitamin, rice husk, and a total of labors could decrease production risk of broiler, but a total of a day of chicks could increase production risk of broiler

Construction of a Mobile Frequency Modulation Transmitter

A Frequency Modulation (FM) transmitter is an electronic device that produces radio waves with the aid of an antenna. The transmitter generates radio frequency alternating current, that is applied to the antenna. When the antenna is excited by the alternating current, the antenna begins to radiate radio waves by varying the frequency of the radio signal. The transmitter is a Very High Frequency (VHF) Colpitts oscillator capable of transmitting sound to standard FM receiver fitted with a capacitor microphone which picks weak sound signals. This design was achieved using: transistors, resistors, inductors and capacitors. A transmission frequency of ± 5% 100 MHz was used and transmitted up to a distance of 5 metres. The testing of the transmitter was carried out by powering it using a 9 V DC battery and tuning a suitable FM receiver to the transmission frequency of the constructed transmitter. A transmission distance of 5 metres was achieved therefore making it possible to use the transmitter as a portable cordless microphone used for public address (P.A.) systems. The achieved fixed frequency of transmission 56.4 MHz, away from all other radio stations transmission frequencies. This gives the best range and with the least of interferences. With increased power, the range can easily be extended

Role of Anopheles (Cellia) rufipes (Gough, 1910) and other local anophelines in human malaria transmission in the northern savannah of Cameroon: a crosssectional survey

Background As part of a study to determine the impact of insecticide resistance on the effectiveness of longlasting insecticide treated nets (LLINs) in the north of Cameroon, the unexpectedly high density and anthropophilic behaviour of Anopheles rufipes lead us to investigate this species bionomics and role in human malaria parasite transmission. Methods For four consecutive years (2011–2014), annual cross-sectional sampling of adult mosquitoes was conducted during the peak malaria season (September-October) in three health districts in northern Cameroon. Mosquitoes sampled by human landing catch and pyrethrum spray catch methods were morphologically identified, their ovaries dissected for parity determination and Anopheles gambiae siblings were identified by molecular assay. Infection with P. falciparum and blood meal source in residual fauna of indoor resting anopheline mosquitoes were determined by enzyme-linked-immunosorbent assays. Results Anopheles gambiae (sensu lato) (s.l.) comprised 18.4% of mosquitoes collected with An. arabiensis representing 66.27% of the sibling species. The proportion of An. rufipes (2.7%) collected was high with a humanbiting rate ranging between 0.441 and 11.083 bites/person/night (b/p/n) and an anthropophagic rate of 15.36%. Although overall the members of An. gambiae complex were responsible for most of the transmission with entomological inoculation rates (EIR) reaching 1.221 infective bites/person/night (ib/p/n), An. arabiensis and An.coluzzii were the most implicated. The roles of An. funestus, An. pharoensis and An. paludis were minor. Plasmodium falciparum circumsporozoite protein rate in Anopheles rufipes varied from 0.6 to 5.7% with EIR values between 0.010 and 0.481 ib/p/n Conclusions The study highlights the epidemiological role of An. rufipes alongside the members of the An.gambiae complex, and several other sympatric species in human malaria transmission during the wet season in northern Cameroon. For the first time in Cameroon, An. rufipes has been shown to be an important local malaria vector, emphasising the need to review the malaria entomological profile across the country as pre-requisite to effective vector management strategies

Validation of risk scores for allograft failure after liver transplantation in Germany: a retrospective cohort analysis

A growing number of clinical risk scores have been proposed to predict allograft failure after liver transplantation. However, validation of currently available scores in the Eurotransplant region is still lacking. We aimed to analyze all clinically relevant donor and recipient risk scores on a large German liver transplantation data set and performed a retrospective cohort analysis of liver transplantations performed at the Charité-Universitätsmedizin Berlin from January 2007 until December 2021 with organs from donation after brain death. We analyzed 9 previously published scores in 906 liver transplantations [Eurotransplant donor risk index (ET-DRI/DRI), donor age and model for end-stage liver disease (D-MELD), balance of risk (BAR), early allograft dysfunction (EAD), model for early allograft function (MEAF), liver graft assessment following transplantation (L-GrAFT7), early allograft failure simplified estimation (EASE), and a score by Rhu and colleagues). The EASE score had the best predictive value for 3-month, 6-month, and 12-month graft survival with a c-statistic of 0.8, 0.77, and 0.78, respectively. In subgroup analyses, the EASE score was suited best for male recipients with a high-MELD (>25) and an EAD organ. Scores only based on pretransplant data performed worse compared to scores including postoperative data (eg, ET-DRI vs. EAD, p<0.001 at 3-month graft survival). Out of these, the BAR score performed best with a c-statistic of 0.6. This a comprehensive comparison of the clinical utility of risk scores after liver transplantation. The EASE score sufficiently predicted 12-month graft and patient survival. Despite a relatively complex calculation, the EASE score provides significant prognostic value for patients and health care professionals in the Eurotransplant region