Ghana journal of agricultural science最新文献_第6页

The Livestock Sector and its contributions to the Protein and Energy needs of the Nigerian Population 畜牧业及其对尼日利亚人口蛋白质和能源需求的贡献

Ghana journal of agricultural science Pub Date : 2019-12-20 DOI: 10.4314/GJAS.V54I2.9

M. M. Inyeinyang, I. Ukpong

{"title":"The Livestock Sector and its contributions to the Protein and Energy needs of the Nigerian Population","authors":"M. M. Inyeinyang, I. Ukpong","doi":"10.4314/GJAS.V54I2.9","DOIUrl":"https://doi.org/10.4314/GJAS.V54I2.9","url":null,"abstract":"The study was designed to assess the contributions of the livestock sector to the protein and energy needs of the Nigerian population by 2050 using an annual time series data from 1980 to 2010. Projected population figures from 2012 to 2050 were used to estimate the extra amount of protein and energy that will be required by the population in 2050. Energy and protein supply data from animal-derived foods, mainly; cattle meat and milk, sheep meat, goat meat, poultry eggs and meat, from 1980 to 2010 were calculated using animal production data and McCance and Widdowson’s composition of foods. The data were analysed using an Excel spreadsheet programme. The result showed that animal-derived foods contributed a total of 47,805,756 MJ/d of energy and 1,027,901 kg/d of protein in 2010. Meanwhile, to meet the additional energy and protein needs of the projected Nigerian population of 389.615 million people by 2050, animal-derived foods would have to supply 37.4% more energy and 9.0% more protein than in 2010. The results thus indicate a gap between current production and expected protein and energy requirement of the population by 2050; which must be closed if food security is to be achieved.","PeriodicalId":174273,"journal":{"name":"Ghana journal of agricultural science","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129587178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Primates crop raiding situation on farmlands adjacent to South-West of Mole National Park, Ghana 加纳莫尔国家公园西南附近的农田，灵长类动物袭击农作物的情况

Ghana journal of agricultural science Pub Date : 2019-12-20 DOI: 10.4314/GJAS.V54I2.6

E. Wiafe

引用次数: 6

Evaluation of efficacy of false yam (Icacina oliviformis) as surface protectant against rot pathogens of white yam (Dioscora rotundata Poir) 假山药(Icacina oliviformis)表面保护剂对白山药(Dioscora rotundata Poir)腐病病原菌的防护效果评价

Ghana journal of agricultural science Pub Date : 2019-07-31 DOI: 10.4314/gjas.v54i1.1

E. Sowley, F. Kankam, R. M. Nsarko

{"title":"Evaluation of efficacy of false yam (Icacina oliviformis) as surface protectant against rot pathogens of white yam (Dioscora rotundata Poir)","authors":"E. Sowley, F. Kankam, R. M. Nsarko","doi":"10.4314/gjas.v54i1.1","DOIUrl":"https://doi.org/10.4314/gjas.v54i1.1","url":null,"abstract":"Rots in yam tubers are the dominant cause of postharvest losses. Therefore, studies were conducted to identify the rot-causing organisms in yam and to evaluate the efficacy of false yam (Icacina oliviformis) plant extracts as surface protectants in the storage of yam. The experiment was laid out in a completely randomized design (CRD) design with five treatments (fruit, root and leaf extract of false yam, Mancozeb and tap water) replicated three times. Two concentrations (50% and 100%) of each extract were also tested. Species were identified based on the structural features, the characteristics and properties of the spore and mycelium. A spore suspension of yam rot fungi was sprayed on healthy yam tubers that had been pretreated with the extracts. Results showed that fungi isolated from rotted yams were Aspergillus niger, A. flavus and Penicillium sclerotigenum. Leaf extracts (both 50% and 100%) had the highest growth inhibitions on all the three fungi isolated in vitro. Tubers treated with root and leaf extracts of false yam had a decreased tuber rot lengths of 1.80 mm2 and 2.17 mm2, respectively. The leaves and roots of false yam can be used as a surface protectant of yam in place of Mancozeb. Keywords: Icacina oliviformis; Dioscora rotundata; Mancozeb; Pathogenicity; Aspergillus spp.","PeriodicalId":174273,"journal":{"name":"Ghana journal of agricultural science","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116051619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

A Study of the Publication pattern in CSIR- Plant Genetic Resources Research Institute CSIR-植物遗传资源研究所期刊发表模式研究

Ghana journal of agricultural science Pub Date : 2019-07-31 DOI: 10.4314/gjas.v54i1.6

P. S. Osei-Kofi, L. Aboagye, Stephen Bekoe, Lucy Dzandu, L. Acheampong

{"title":"A Study of the Publication pattern in CSIR- Plant Genetic Resources Research Institute","authors":"P. S. Osei-Kofi, L. Aboagye, Stephen Bekoe, Lucy Dzandu, L. Acheampong","doi":"10.4314/gjas.v54i1.6","DOIUrl":"https://doi.org/10.4314/gjas.v54i1.6","url":null,"abstract":"Plant genetic resources (PGR) are those resources that are of benefit to man. They are plant materials containing useful characters of actual or potential values. They are the basic raw materials for crop improvement today and for the future. This paper analysed changes in publication trend by scientists from 1981 to 2015 at the CSIR-Plant Genetic Resources Research Institute. It investigated major commodities covered by the articles produced by scientists of the Institute. The main area of study included publication formats covered by the articles in the Plant Genetic Resources Research Institute Reference (PGRRIREF Directory) (1981-2015). The study also highlighted recent research and development activities in each publication discipline in the PGRRIREF Directory. It is believed that information gathered from the analysis of this research, would increase the utilization of the crop plants in Ghana and beyond. Content analysis method and interviews were used for the study of the Publication pattern in CSIR-Plant Genetic Resources Research Institute. The findings indicated among others that, socio-economic (27.2%), horticulture (21.5%), root and tubers (18.5%) recorded increasing publication disciplines. Technologies developed in these publication disciplines could be put on-line for a wider audience to enhance efficient conservation and utilization of plant genetic resources materials. Keywords: CSIR-Plant Genetic Resources Research Institute; publication pattern; discipline; formats; research activities","PeriodicalId":174273,"journal":{"name":"Ghana journal of agricultural science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130276374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Manure characteristics of small ruminants fed agro by-products in the guinea savannah agro-ecological zone of Ghana 加纳几内亚草原农业生态区以农业副产品为食的小反刍动物粪便特征

Ghana journal of agricultural science Pub Date : 2019-07-31 DOI: 10.4314/gjas.v54i1.7

K. O. Ansah, C. Antwi, E. Osafo, S. Enning, H. Adu-Dapaah

{"title":"Manure characteristics of small ruminants fed agro by-products in the guinea savannah agro-ecological zone of Ghana","authors":"K. O. Ansah, C. Antwi, E. Osafo, S. Enning, H. Adu-Dapaah","doi":"10.4314/gjas.v54i1.7","DOIUrl":"https://doi.org/10.4314/gjas.v54i1.7","url":null,"abstract":"A 90 day study on evaluating quantity and quality of manure from small ruminants in the Guinea Savannah agro-ecological zone of Ghana was conducted. 36 goats and 36 sheep were randomly allotted to three dietary treatments - Basal diets of maize stover, cassava and yam peels as Treatment one (T1), T1 supplemented with cowpea residues as Treatment two (T2) and T1 supplemented with groundnut residues as Treatment three (T3) in a randomized complete block design. Feed composition and intake and manure characteristics were assessed and data analyzed statistically using Generalized Linear Model procedures of SAS at 5% significance level. The Chemical composition of feed resources ranged from 3.2-17.3% crude protein, 82-97.2% organic matter and 2.8-18% ash. Total feed intake ranged from 519.55-659.72 g/day and 331.84-420.17 g/day for sheep and goats respectively. Sheep manure weighed 319.17-423.33 g/day and contained 20.74-29.01% carbon, 1.87-2.32% nitrogen, 0.77-3.00 potassium, 9.52-26.50% ash, 0.44-0.77 pH and C:N ratio of 10.98-15.53. Goat manure weighed 178.67-216.17 g/day with 19.58-30.61%, 1.56-2.21% nitrogen, 0.82-2.33% potassium, 10.75-19.80% ash, 0.37-1.47 pH and C:N ratio of 9.49-19.92. Results indicated that manure from small ruminants could serve as alternative source of fertilizer in Ghana since its characteristics compare well with chemical fertilizers. Keywords: sheep; goats; feed resources; manure; fertilizers","PeriodicalId":174273,"journal":{"name":"Ghana journal of agricultural science","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122967086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Phytoremediation potential of two maize varieties cultivated on metal-particulate-contaminated soil 两个玉米品种在金属颗粒污染土壤上的植物修复潜力

Ghana journal of agricultural science Pub Date : 2019-07-31 DOI: 10.4314/gjas.v54i1.4

M. Adewole, B. Oyebanji, K. Igbekele

引用次数: 4

Effect of added dietary lysine and methionine above recommended levels, on growth performance, breast meat yield and financial returns in broilers 饲粮赖氨酸和蛋氨酸添加量高于推荐水平对肉鸡生长性能、胸肉产量和经济效益的影响

Ghana journal of agricultural science Pub Date : 2019-07-31 DOI: 10.4314/gjas.v54i1.3

T. Nortey, E. Quarshie, R. Owusu-Bremang, E. Agyei-Henneh, N. S. Frempong, C. Stark

{"title":"Effect of added dietary lysine and methionine above recommended levels, on growth performance, breast meat yield and financial returns in broilers","authors":"T. Nortey, E. Quarshie, R. Owusu-Bremang, E. Agyei-Henneh, N. S. Frempong, C. Stark","doi":"10.4314/gjas.v54i1.3","DOIUrl":"https://doi.org/10.4314/gjas.v54i1.3","url":null,"abstract":"This study investigated the effect of added lysine and methionine above recommended levels in broiler diets, on their growth, breast meat yield and financial returns. A total of 175 one-day-old Cobb 500 chicks were assigned to seven dietary treatments in a completely randomized design. Treatment one (T1) was a control diet formulated to breed specifications. Treatments two (T2) and three (T3) contained 1.2 times recommended levels of Lys and Met respectively. Treatment four (T4) contained Lys and Met at 1.2 times recommended levels. Treatments five (T5) to seven (T7) had similar combinations of Lys and Met as T2 to T4 but their inclusions were 1.4 times recommended levels. On day 43 five birds per treatment were slaughtered for breast meat yield measurements. Broilers on T6 had heavier (P<0.05) breast meat (691.6 g) and tenderloin weights (126.4 g) compared to birds on T1 (491.2 and 93.8 g respectively). The premium on the price of breast meat more than offset the added feed cost of the nutrient dense diets. However, if the finished dressed broilers are to be sold whole and uncut, this trial showed that it is better to feed the birds at the manufacturers recommended levels of Lys and Met. Keywords: Lysine; Methionine; Broilers; Breastmeat; Financial analysis","PeriodicalId":174273,"journal":{"name":"Ghana journal of agricultural science","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121346052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Diallel analysis of maize inbred lines for agronomic traits in nitrogen stress and optimal conditions 玉米自交系氮素胁迫及最佳条件下农艺性状双列分析

Ghana journal of agricultural science Pub Date : 2019-07-31 DOI: 10.4314/gjas.v54i1.2

D. Ogunniyan, D. Ojo, S. Olakojo, O. A. Talabi

{"title":"Diallel analysis of maize inbred lines for agronomic traits in nitrogen stress and optimal conditions","authors":"D. Ogunniyan, D. Ojo, S. Olakojo, O. A. Talabi","doi":"10.4314/gjas.v54i1.2","DOIUrl":"https://doi.org/10.4314/gjas.v54i1.2","url":null,"abstract":"Increasing demand, soil cultivation pressure and adverse climate change effects necessitated maize production in nitrogen stress soils. This study examined the general combining ability (GCA) of 12 maize inbreds and specific combining ability of their crosses for agronomic traits under varied nitrogen conditions. GCA accounted for 53% of the variation for grain yield (GY) under stress and 40% under optimal condition. GCA contributed over 59% for days to anthesis (DTA) and days to silking (DTS), anthesis-silking-interval (ASI) and ear aspect (EASP) under both conditions. BD74-165 and BD74-161 had positive significant GCA for GY under stress with TZEI12 under optimal and BD74-222 under both conditions. TZEI13 and TZEI16 had positive significant GCA for DTA and ASI under stress, and TZEI12, TZEI11 and BD74-161 under optimal. Additive genes control DTA, DTS and PH; non-additive genes were responsible for ASI, PASP and EASP while both additive and non-additive genes governed inheritance of GY, EH and leaf-senescence (SEN) under stress. Inheritance of GY, ASI, PH, PASP and EASP were due to non-additive genes; DTA and DTS to additive genes while additive and non-additive genes control EH and SEN under optimal condition. Inbreds with significant GCA can be parents for GY improvement under respective conditions. Keywords: Combining ability; diallel; low nitrogen; maize lines; stress tolerance","PeriodicalId":174273,"journal":{"name":"Ghana journal of agricultural science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131208864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Perceptions of grasscutter (Thryonomys swinderianus) farmers on production technologies in the Agona West Municipality, Central Region - Ghana 加纳中部地区阿戈纳西市的割草农民对生产技术的看法

Ghana journal of agricultural science Pub Date : 2019-07-31 DOI: 10.4314/gjas.v54i1.5

B. Folitse, S. Manteaw

{"title":"Perceptions of grasscutter (Thryonomys swinderianus) farmers on production technologies in the Agona West Municipality, Central Region - Ghana","authors":"B. Folitse, S. Manteaw","doi":"10.4314/gjas.v54i1.5","DOIUrl":"https://doi.org/10.4314/gjas.v54i1.5","url":null,"abstract":"The study sought to assess the dynamics of grasscutter (Thryonomys swinderianus) Production Technologies being used in the Agona West Municipality in the Central Region of Ghana. Farmers were selected from 20 communities with the help of staff from the Department of Agriculture and were interviewed using structured questionnaires. The results revealed that though the grasscutter farmers were varied in their views, the dissemination of grasscutter technologies through video in the study area was deemed to be effective. The results of the Logistic regression model (R-Square values of 0.119 and 0.158) showed that the impact of the dissemination programme on the livelihoods of farmers who had adopted the grasscutter production technologies was best predicted by age, household size and level of education of farmers. The overall mean, 3.99 showed that the livelihoods of the farmers had highly been improved. The paper makes a strong case for a more participatory approach anchored on inclusive problem identification and formulation of research solution that will further ensure that problems that are targeted by research emanate from farmers. This is expected to ensure a more effective extension of research technologies to farmers and other actors along the grasscutter value chain in the area. Keywords: Grasscutter; Production Technologies; Agona West Municipality; Central Region; Ghana","PeriodicalId":174273,"journal":{"name":"Ghana journal of agricultural science","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122119594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Aboveground Biomass and Carbon content of a cocoa –Gliricida sepium agroforestry system in Ghana 加纳可可-油棕农林业系统的地上生物量和碳含量

Ghana journal of agricultural science Pub Date : 2018-12-22 DOI: 10.4314/GJAS.V53I1.4

S. Owusu, L. Anglaaere, S. Abugre

{"title":"Aboveground Biomass and Carbon content of a cocoa –Gliricida sepium agroforestry system in Ghana","authors":"S. Owusu, L. Anglaaere, S. Abugre","doi":"10.4314/GJAS.V53I1.4","DOIUrl":"https://doi.org/10.4314/GJAS.V53I1.4","url":null,"abstract":"To help overcome the challenge faced in re-establishing cocoa in degraded lands, some agroforestry trials were established with exotic leguminous tree species to determine their suitability for cocoa cultivation. However, our understanding of biomass accumulation and carbon sequestration in such specific agroforestry practices is still limited. In this study, the above-ground biomass and carbon storage and partitioning in a gliricidia-cocoa agroforestry system was investigated. Above-ground biomass accumulation and carbon stock varied significantly between the components of the system, with the gliricidia shade trees having the highest values and the cocoa trees having the lowest. The inclusion of the gliricidia shade trees in the system increased above-ground biomass and carbon capture of the system by some 60%, a greater proportion of which was contained in the branches of the shade trees. This pattern of dry matter distribution makes the species appropriate for use as a biomass producing species in agroforestry systems and demonstrates the potential of cocoa agroforestry systems for capturing and storing more atmospheric carbon than sole cocoa systems.","PeriodicalId":174273,"journal":{"name":"Ghana journal of agricultural science","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134255767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2