Agricultura Tropica et Subtropica最新文献

{"title":"Impact of maternal feed rationing during pregnancy on meat quality attributes of rabbit offspring","authors":"A. A. Adeyemo, O. J. Odutayo, A. Adeyemo, O. A. Adeyemi, O. M. Sogunle, A. Bamgbose","doi":"10.2478/ats-2022-0011","DOIUrl":"https://doi.org/10.2478/ats-2022-0011","url":null,"abstract":"Abstract Young rabbits does fed ad libitum diets often show parturition problems such as dystocia and abnormal presentation, resulting in reduced numbers of kits. This can be linked to excessive fatness of the does. Several studies have documented the effect of feed restriction on rabbits, but only limited information exist on the carryover effect of maternal feed restriction exerts on meat quality attributes of the offspring produced from such restriction. This study evaluated the influence of maternal feed restriction and vitamin E inclusion during pregnancy on meat quality of rabbit kits. Seventy-five rabbits, consisting of sixty 20-week-old does and 15 mature bucks, were used in the experiment. Treatments consisted of two levels of feed restriction (0 and 15 %) applied at three different periods during pregnancy (15 – 19, 20 – 24, or 25 – 29 days) with or without vitamin E dietary inclusions (0 and 300 mg/kg). The pregnant does were divided into twelve treatment groups, each containing five replicates of one rabbit each. The experiment was in a 2 × 3 × 2 factorial layout in a completely randomised design. After kindling (between days 28 – 31 of pregnancy) the resulting kits (a total of 180 kits) were arranged on treatment basis of their mothers and managed for a period of 56 days; that is 15 kits per treatment, each replicated 5 times (each replicate contained 3 kits). After 56 days of experiment, the data were collected on meat pH, total cholesterol, crude fat, crude protein, thermal shortening and refrigeration loss. Feed restriction during pregnancy with or without dietary vitamin E (no addition and 300 mg/kg) resulted in a significant (p < 0.05) influence on meat quality attributes of growing rabbits as total cholesterol (555.00 ± 6.06) decreased in the meat of rabbits whose mothers were feed-restricted during pregnancy. On the other hand, maternal feed rationing with or without vitamin E did not significantly (p > 0.05) affect the crude protein and thermal shortening of their slaughtered offspring. In conclusion, maternal feed rationing during pregnancy can be adopted as a feeding strategy in manipulating meat quality indicators of growing rabbits as total cholesterol concentrations decreased which is a good indicator that the meat is safer and better for consumers in order to prevent health-related challenges.","PeriodicalId":7633,"journal":{"name":"Agricultura Tropica et Subtropica","volume":"407 1","pages":"92 - 98"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84871328","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}

{"title":"Phenotypic diversity and path analysis of seed yield in Bambara groundnut grown in rain forest agroecological zone","authors":"O. T. Adeniji, M. Adekoya, Busayo Olosunde, Ukobong Ekanem, I. Iseghohi, A. Badmus","doi":"10.2478/ats-2022-0015","DOIUrl":"https://doi.org/10.2478/ats-2022-0015","url":null,"abstract":"Abstract Bambara groundnut is a reliable source of carbohydrates and protein in rainforest agroecology, but limited research had been done and few varieties commercialised. The magnitude of phenotypic variability, character association, and contribution of characters to seed yield were investigated among 50 accessions received from IITA, Nigeria. Field evaluation took place during the 2017 – 18 cropping seasons. The accessions were allocated to experimental plots using a Randomised Complete Block Design with three replicates. Data were collected on phenological, agronomic, and seed yield characters. The main effect showed significant (p ≤ 0.05) differences for phenological, vegetative, and reproductive characters. The year effect influenced agronomic and seed yield characters while accessions by year interaction were insignificant for all characters. The stepwise discriminant analysis identified three redundant characters. The leaflet length and width, canopy spread, leaf/plant, seeds/plant, and seed weight showed high discriminatory ability and are efficient for morphological characterisation and conservation. Hybridisation between accessions dispersed in quadrants 1, 2, and 4 may evolve early and medium maturity types with improved seed yield and biomass. The number of seeds/plant and pods/plant are indices for seed yield. The contribution of pods/plant to seed yield was masked by canopy spread, peduncle length, and pod width indicating competition for photo-assimilates. TVSu 17, TVSu 277, TVSu 271, and TVSu 278 are donor parents for earliness. TVSu 261 performed best for seed yield and yield component characters. Hybridisation among TVSu 261, TVSu 587, TVSu 275, and TVSu 17 will evolve medium maturing and high seed-yielding varieties for further evaluation.","PeriodicalId":7633,"journal":{"name":"Agricultura Tropica et Subtropica","volume":"16 1","pages":"133 - 148"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83067448","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}

{"title":"Chemical composition of two maize varieties at different levels of green manure application","authors":"O. okukenu, A. Adekale, A. Olajide, O. Onifade, A. Jolaosho","doi":"10.2478/ats-2022-0004","DOIUrl":"https://doi.org/10.2478/ats-2022-0004","url":null,"abstract":"Abstract This study evaluated the chemical composition of two maize varieties at different levels of green manure application. The bucket experiment was laid in 2 × 3 factorial arrangement comprising two maize varieties (Oba super 2 and Suwan I) and three green manure application levels (0, 6.3 and 12.6 t/ha). The results showed that Oba super 2 had a lower (p < 0.05) Crude Protein (CP) (8.91 %) content, but had a higher (p < 0.05) ether extract (8.83 %) and ash (9.83 %) contents as compared to Suwan I. Maize fertilised with 6.3 t/ha of green manure had the highest CP (10.13 %) and ash (9.96 %) contents. Interaction effect of variety and level of green manure application showed that the least CP content (7.61 %) was recorded for unfertilised Oba Super 2 maize, whereas the highest CP content (10.21 %) was recorded for Suwan I maize fertilised with 12.6 t/ha of green manure. There were no significant (p > 0.05) differences in the Neutral Detergent Fibre (NDF), Acid Detergent Lignin (ADL), hemicellulose and cellulose contents of the two maize varieties evaluated. However, the Acid Detergent Fibre (ADF) content was significantly (p < 0.05) higher (32.33 %) in Oba Super 2 variety. The rising amounts of green manure applied significantly (p < 0.05) increased both the NDF and ADF. There was no consistent variation in the NDF content as influenced by interaction of both factors with the highest (60.67 %) NDF content recorded for unfertilised Oba Super 2 maize. Calcium, potassium and phosphorus contents declined with the increasing amount of green manure added. Our results show that the green manure application improved the nutritional qualities of the planted maize and should be used in practice.","PeriodicalId":7633,"journal":{"name":"Agricultura Tropica et Subtropica","volume":"22 1","pages":"30 - 39"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87594192","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}

{"title":"Impact of rural transportation networks on farmers’ income in Ilaje Local Government Area of Ondo State, Nigeria","authors":"O. Olagunju","doi":"10.2478/ats-2022-0002","DOIUrl":"https://doi.org/10.2478/ats-2022-0002","url":null,"abstract":"Abstract This study examined how the nature of rural transportation networks affects the income of local farmers. The study involved arable crop farmers in the Ilaje local government area of Ondo State, Nigeria. A structured interview was used to gather information from a total of 120 farmers in rural communities across the local government using a two-stage random sampling technique. Descriptive statistics and inferential statistics such as chi-square and Pearson Product Moment Correlation (PPMC) were used to analyse the data. The study revealed that farmers’ poor nature of transportation networks has a negative impact on their income. Gender (χ2 = 6.472) and marital status (χ2 = 9.745) positively influenced income generated by farmers at p < 0.05. Additionally, there was a moderate and significant correlation between transportation systems used (r = 0.705, p < 0.05), the perceived impact of rural transport (r = 0.267, p < 0.05), and the farmers’ income on agricultural activities. The results have shown that the serious constraints faced by the farmers are high cost of transportation which has a great influence on their generated income. The study allows to conclude that the nature of transportation networks available in the communities under study has a significant impact on the level of income to be realised by farmers. The construction, development, and provision of more rural transport networks would not only boost the standard of living and reduce transport costs of the rural poor but could also be a solution for the prolonged deplorable and worsening situation of rural roads in the country.","PeriodicalId":7633,"journal":{"name":"Agricultura Tropica et Subtropica","volume":"32 1","pages":"9 - 18"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86592624","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}

{"title":"Soil moisture levels affect growth, flower production and yield of cucumber","authors":"J. Odhiambo, J. Aguyoh","doi":"10.2478/ats-2022-0001","DOIUrl":"https://doi.org/10.2478/ats-2022-0001","url":null,"abstract":"Abstract Field trial to determine the optimum soil moisture level for enhanced performance of cucumber was conducted in polyethylene covered rain shelter for two seasons in 2017 and repeated in 2018. The research was conducted at Rongo University Research and Teaching field. Three seeds of cucumber ‘Ashley’ were sown directly in 3.5 litre plastic pots containing 8 kg of sterilised air-dried growth medium made up of sand and top soil in the ratio of 1:2. The treatments were four levels of water applied at 100 % (control), 80 %, 60 % and 40 % pot capacity. The experimental design was completely randomised block design replicated three times. Data on the plant growth, flower production and yield were subjected to Analysis of Variance (ANOVA) and mean separation tests at p ≤ 0.05 level of significance. There were significant differences on the vine growth, internodes length and diameter as a result of Water Stress (WS) levels. The treatments also significantly affected the Relative Leaf Water Content (RLWC) and Relative Leaf Expansion Rate (RLER) but did not affect the number of leaves per vine. Fruit firmness was also affected by water stress. To optimise the productivity of cucumber, the soil moisture level should be maintained to at least 80 % of the field capacity throughout its productive phase.","PeriodicalId":7633,"journal":{"name":"Agricultura Tropica et Subtropica","volume":"73 1","pages":"1 - 8"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90288837","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}

{"title":"Factors determining adoption of smallholding rubber agroforestry Systems (RAFS) in Nigeria","authors":"C. S. Mesike, C. Okwu-Abolo","doi":"10.2478/ats-2022-0006","DOIUrl":"https://doi.org/10.2478/ats-2022-0006","url":null,"abstract":"Abstract This study investigated the factors determining adoption of rubber agroforestry decisions in Nigeria. Primary data on farming practices were collected from 200 samples of rubber smallholder farmers through a structured questionnaire. The data collected were analysed using descriptive statistical procedures and the logistic econometric model. The results indicated that farmers’ participation in on-farm trial demonstrations, accessing agricultural knowledge through trainings, extension contact, education level, membership of farm organisation and attitude of farmers towards intercropping were positively associated with increased adoption of rubber agroforestry in Nigeria. Contacts with extension agents were significant at 1 % whereas other variables that were positively associated with rubber agroforestry systems were significant at 5 %. Adoption decision was based on the fact that rubber agroforestry would not only meet their food needs but also increase the household income. Variables such as off-farm income, average distance from rubber land to farmers’ residence, negatively influenced adoption of rubber agroforestry at 1 % and 10 % level, respectively. Social participation, household size, farming experience in growing rubber and other crops, did not significantly influence adoption. Based on these observations, policy inputs are provided.","PeriodicalId":7633,"journal":{"name":"Agricultura Tropica et Subtropica","volume":"44 1","pages":"49 - 56"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75841840","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}

{"title":"Economics of catfish hatchery farmers and its contribution to household poverty alleviation in Nigeria","authors":"S. S. Ashley-Dejo, Olusunmbo Adeolu Adelaja","doi":"10.2478/ats-2022-0003","DOIUrl":"https://doi.org/10.2478/ats-2022-0003","url":null,"abstract":"Abstract Fish and fisheries products are considered as one of the most substantial parts of Nigeria economy. Demand for these products is on the high side due to the rapid growth of human population, changes in lifestyle and eating habits. Fishery is thus serving as a source of employment, income generation and food security. This paper made use of the data gathered from the farm and household levels to analyse the economics of catfish hatchery farming and its contribution to household poverty alleviation in Oyo and Osun States, Southwest Nigeria, using profitability analyses, Foster-Greer-Thorbecke index and Tobit regression models. The findings indicate that fish hatchery farming is profitable, altough 43.1% of fish hatchery farmers interviewed were above the poverty line. Thus, the enterprise significantly (p < 0.05) reduced poverty in the study area. Furthermore, the effects of socioeconomic variables, gender, education level, and framing experience (p < 0.01); marital status and household size (p < 0.1); labour employed, hatchery units, quality of fish seed produced and membership of cooperative society (p < 0.05) indicating several interactions between poverty and the variables analysed. In conclusion, policy makers, government and non-governmental organisation should give the enterprise adequate attention and support as this could be adopted in lifting the country from poverty.","PeriodicalId":7633,"journal":{"name":"Agricultura Tropica et Subtropica","volume":"200 1","pages":"19 - 29"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76967223","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}

{"title":"Sand amended with carbonised rice husk and goat manure as a propagation medium","authors":"Ephrem Nkurunziza, S. Nyalala, K. N. J. Umuhoza","doi":"10.2478/ats-2022-0021","DOIUrl":"https://doi.org/10.2478/ats-2022-0021","url":null,"abstract":"Abstract Tomato is an important horticultural crop as it provides income and contributes to food security for Rwandan citizens. Besides its importance, its production is hampered by the use of a soil-based growing medium which results in the production of low-quality transplants. This is mainly attributed to the unaffordability of peat moss to small-scale farmers in Rwanda. Hence, a greenhouse nursery experiment was carried out at the Rwanda-Israel Horticulture Centre of Excellence to search for an alternative growing medium to peat moss. Nine different growing media were formulated from a mixture at different ratios of sand, goat manure, and carbonised rice husks. The seeds were sown in propagation trays. The experiment was laid out in a randomised complete block design (RCBD) with four replications. Data obtained were subjected to analysis of variance and means were separated using Tukey’s honestly significant difference test at p ≤ 0.05. The data analysis was carried out using SAS software version 9.2. The results revealed that sand + goat manure + carbonised rice husk 50 %: 10 %: 40 % (T8) was comparable to T1 (peat moss 100 %) in producing higher quality seedlings during both trials with a mean quality index of 0.28 and 0.31, respectively, whereas T2 (sand 100 %) had seedlings with the poorest quality. Consequently, T8 can be adopted by nursery producers as an alternative to peat moss in the production of quality tomato transplants. More research on other locally available organic substrates is encouraged to find out alternatives to expensive media like peat moss because it was observed that the use of sand + goat manure + carbonised rice husk 50 %: 10 %: 40 % revealed in production of quality seedlings with no significant difference from the ones grown in peat moss.","PeriodicalId":7633,"journal":{"name":"Agricultura Tropica et Subtropica","volume":"78 1","pages":"202 - 213"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75671301","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}

{"title":"Determinants of utilisation of tomato value addition technology among beneficiaries in Oyo State, Nigeria","authors":"S. Tijani","doi":"10.2478/ats-2022-0018","DOIUrl":"https://doi.org/10.2478/ats-2022-0018","url":null,"abstract":"Abstract Value addition is essential in the tomato value chain, especially in the wake of an increasing rate of tomato postharvest loss. Both governmental and non-governmental organisations have trained small-scale entrepreneurs on Tomato Value Addition Technology (TVAT). A dearth of information on the utilisation of TVAT necessitated this study. A two-stage sampling procedure was used to select 142 respondents. Data were elicited from respondents with the aid of a questionnaire and analysed using frequency counts, percentages, multiple linear regression, and multivariate probit model at α0.05. The results revealed that most (54.9 %) of the respondents had a high level of knowledge on TVAT and a favourable attitude (60.6 %) towards TVAT. However, the level of utilisation of TVAT was low (69.7 %). Lack of funds (68.3 %), NAFDAC registration requirements (66.9 %), and high cost of processing equipment (57.0 %) were prominent constraints militating against utilisation of TVAT. Constraints to the utilisation of TVAT (β = −0.395), age (β = −0.022), and income (β = 0.095) determined the utilisation of TVAT. Membership in a cooperative society (β = 0.221), income (β = 0.375) and constraints (β = −0.213) predicted the utilisation of tomato paste. Educational qualification (β = 0.132), cooperative society (β = 0.059), income (β = 0.336), and knowledge of TVAT (β = 0.229) predicted the utilisation of ketchup. Age (β = −0.112), income (β = 0.026), years of experience (β = 0.031), knowledge of TVAT (β = 0.311), and constraints (β = −0.093) predicted the utilisation of puree, whereas factors associated with the utilisation of dry slice tomato technology, were age (β = 0.107), marital status (β = 0.050), household size (β = 0.042) and years of experience (β = 0.219). Adequate funding is a sine qua non to the sustainability of agricultural technologies. The study recommended the need for more training on the utilisation of the technology, encouragement to form cooperative groups to facilitate easy access to funds, and establishment of cottage industry among stakeholders.","PeriodicalId":7633,"journal":{"name":"Agricultura Tropica et Subtropica","volume":"27 1","pages":"169 - 184"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81903980","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}

{"title":"Response of guinea fowls to dietary L-arginine supplementation","authors":"A. Lala, Abiodun Fowowe, Adebukola Orbugh, I. Osunsina, A. Oso","doi":"10.2478/ats-2022-0005","DOIUrl":"https://doi.org/10.2478/ats-2022-0005","url":null,"abstract":"Abstract This experiment aimed at evaluating the influence of supplementing L-arginine in the diets fed to guinea fowls on growth response, haematological profile, serum biochemical indices and internal organs. A total of 300 one-day-old guinea fowl keets were allotted in a completely randomised design to three dietary treatments of basal diets (starter and grower) supplemented with 0, 0.5 and 1.0 g arginine/kg. Each treatment group was replicated four times consisting of 25 keets per replicate. At the starter phase, final weight, weight gain and feed conversion ratio (p < 0.05) improved as arginine level increased in the diet. However, feed intake was higher (p < 0.05) in the group fed 1.0 g/kg arginine supplemented diet when compared to other treatment groups. Final weight at the grower phase increased linearly (p < 0.05) with arginine supplementation without corresponding effect on weight gain in birds fed different arginine levels. Red blood cell counts, white blood cell counts and lymphocytes (p < 0.05) increased in the blood of guinea fowls fed diets supplemented with arginine. Creatinine and uric acid (p < 0.05) were reduced in guinea fowls fed arginine supplemented diets at the starter and grower phases, respectively. Liver weight linearly increased (p < 0.05) with arginine in the diets of the guinea fowls. This study indicates that supplementing guinea fowl diet with arginine at 1.0 g/kg at the starter phase and 0.5 g/kg at the finisher phase improved their growth and feed conversion ratio. Birds fed arginine supplemented diets had higher lymphocyte and reduced heterophil counts which may suggest a better immune response.","PeriodicalId":7633,"journal":{"name":"Agricultura Tropica et Subtropica","volume":"33 1","pages":"40 - 48"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74607295","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}