ISSN / EISSN : 2690-5396 / 2690-4799
Published by: Ideas Spread (10.30560)
Total articles ≅ 65
Latest articles in this journal
Agricultural Science, Volume 3; https://doi.org/10.30560/as.v3n4p1
The aim of this study was to assess the association of hypocalcemia at calving with health and performance of Holstein cows and their calves. Data were collected January 1st 2017 to December 31st 2020. A total of 431 lactating Holstein Friesian cows (118 primiparous and 313 multiparous) from a research of hypocalcemia was 2 groups (hypo and non-hypo). The overall prevalence of hypocalcemia was 3.4% for first-lactation cows and 18% for multiparous cows. Lactating dairy cows with hypocalcemia had greater proportion of cows with Retained Fetal Membranes (RFM) metritis and culling within 60 days in milk (DIM), compared with non-hypocalcemia respectively. For the first 2 official milk tests milk yield and components (% fat, % protein on SCC) did not differ between hypo and non-hypo cows. The days in milk at first service, mastitis, dystocia and pregnancy at first service were not different between hypo and non-hypo groups. The proportion of stillbirth, survival at 60 days of age in calves did not differ between calves born from hypo or non-hypo cows. Calves born from Hypo cows had greater incidence of diarrhea (38.3%) than calves born (22.3%) from non-hypo cows. The results of this study show that hypocalcemia in calving has significant health implications for both dams and their calves.
Agricultural Science, Volume 3; https://doi.org/10.30560/as.v3n3p12
The process of semen freezing causes an increase in free radicals concentration which can damage spermatozoa. The addition of natural ingredients in semen diluent is expected to solve this challenges. One of the natural ingredients that can be used is jamblang (Syzygium cumini) leaves. The objective of the current study was to investigate the quality of spermatozoa in Aceh cattle which was added with jamblang leaves extract in skim milk- egg yolk extender during pre-freezing and post-thawing. This study applied Completely Randomized Design (CRD) with 5 treatments and 5 replications. The treatments consisted of J0 = skim milk-egg yolk; J1 = skim milk-egg yolk + jamblang leaves extract 0.2%; J2 = skim milk-egg yolk + jamblang leaves extract 0.4%; J3 = skim milk-egg yolk + jamblang leaves extract 0.6%; and J4 = skim milk-egg yolk + jamblang leaves extract 0.8%. The parameters observed in this study were the percentage of motility and viability of frozen semen of Aceh cattle. The data obtained were analyzed using Analysis of Variance (ANOVA) and if differences were found, then it would be continued with Duncan's Multiple Distance test. The results showed that the addition of jamblang leaves extract in egg yolk skim milk significantly affected the percentage of motility during pre-freezing and post-thawing, significantly affected spermatozoa viability during pre-freezing and significantly affected the spermatozoa viability during post-thawing. J3 treatment (jamblang leaves extract 0.6 gram/100 ml) it should be higher than the other treatment, where the percentage of motility at pre-freezing and post-thawing were 55.48% and 52.71%, respectively, and the percentage of viability during pre-freezing and post-thawing were 56.59% and 53.94%, respectively. It was concluded that the addition of jamblang leaves extract in the skim milk-egg yolk extender affected the percentage of spermatozoa motility and viability of Aceh cattle during pre-freezing and post-thawing.
Agricultural Science, Volume 3; https://doi.org/10.30560/as.v3n3p1
For controlling the entire drying process of a material, it is crucial to understand the moisture ratio of the material in the drying process. In order to ascertain the moisture change rules of kelp knots in the solar-heat pump combined drying process, an analysis was made on the impacts of different drying temperatures, wind speeds and loading capacities on the drying rate in this research; meanwhile, three common drying dynamic models were selected and compared to know their applicability to the solar-heat pump combined drying of kelp knots. Further, the model coefficient was determined and the optimal model was obtained. The results reveal as follows: drying temperature, wind speed and loading capacity have significant impact on and significant correlation (P<0.05) with the drying rate of kelp knots; under different drying conditions, the drying rate is always high in the early stage, lowered and gradually moderate in the later stage. After fitting the drying dynamic model, it is found that among the experimental data, regression coefficient (R2) is the largest in the Verma model, and the sum of squares for error (SSE) and root mean square error (RMSE) are low. This indicates that the Verma model can be used to accurately express and predict the change rules of moisture in kelp knots during the solar-heat pump combined drying. According to Fick's second diffusion law, the effective diffusion coefficient Deff increases with the increase in drying temperature and wind speed, and decreases with the increase in loading capacity.
Agricultural Science, Volume 3; https://doi.org/10.30560/as.v3n2p1
This study was carried out in the year November 2020. The general objective of this study was to assess the profitability and Technical efficiency of soybean producers in the municipality of Tanguiéta. A survey of a sample of 184 producers was selected at random in Center of Tanguiéta, Taïacou, Cotiakou, N’Dahonta and Tanongou of the municipality. In order to analyze the financial profitability of soybean production, the interviews focused on data in order to estimate the technical efficiency scores of each producer and to establish the operating account of the sampled producers. Thus, the most efficient and the average or weakly efficient producers whose technical efficiency scores are less than or equal to 50%. Gross margin, yield, value added per hectare and profit to production cost ratio were estimated. The results showed that the technical efficiency indices of the producers surveyed varied between 11% and 91.1% with an average of 45.62%. Soybean production is financially profitable depending on the level of technical efficiency although the yields obtained are very low for each of the groups. The profit to cost of production ratio revealed that the group of the most efficient producers has the best ratio (1.18> 0.93), showing that soybean producers are technically inefficient overall. With regard to the indicators, they are far from the production potential expected in Benin.
Agricultural Science, Volume 3; https://doi.org/10.30560/as.v3n1p15
The study examined the factors influencing yearly consumption of turkey meat in Mymensingh city area. Data were collected from 60 consumers of turkey meat through Purposive sampling technique and face to face interview. Dummy coding was applied to code independent variables which were categorical in nature and multiple linear regression was carried out to find out the factors influencing consumption of turkey meat. Result indicated that the majority of the consumers (more than 50%) favored taste, color and aroma of turkey meat. The findings also revealed that age (P
Agricultural Science, Volume 3; https://doi.org/10.30560/as.v3n1p1
In order to shed light on the effect of the seaweed Ascophyllum nodosum (L.) bio stimulant on the banana fruit, foliar application (Fo), fertigation(F1) and a mix of both interventions (M) were done during 2018-2019 season on banana plants grown in South Lebanon compared with control (Ctrl). The period between flowering and harvest, the bunch weight, the weight and dimensions of fruit, were measured during the study. The results showed that the shortest period between flowering and harvest was observed on samples treated through foliar application (Fo), less with fertigation and then the mix of both (M). Those treatments were very effective in stimulating the weight of bunch and length of fruit, while a significant increase in the weight of fruit was noticed when both applications were done together (M). All treated modalities showed better performance compared with control. There was no difference in the diameter of fruit between all treatments. Therefore, the application of eco-friendly seaweed-based bio stimulant would be beneficial for the time of harvesting, and the size of banana fruits.
Agricultural Science, Volume 3; https://doi.org/10.30560/as.v3n1p7
Cassava (Manihot esculenta Crantz) is one of the staple food crops grown in Kenya. Diseases remain one of the major constraints for cassava production. Apart from other major viral diseaes Cassava mosaic and Cassava brown streak, Cassava bacterial blight (CBB) caused by Xanthomonas axonopodis pv manihotis and Xanthomonas axonopodis pv cassavae are a major constraint in cassava production in Kenya. This study was done to identify the prevalence, distribution, and farmers' knowledge of cassava bacterial blight in the coastal region of Kenya. A survey was conducted involving 250 farmers who were randomly selected from two regions of Kilifi and Taita Taveta counties. Among the 250 farmers interviewed, 61.6 % identified cassava bacterial blight symptoms in their farms. The main varieties found growing in the region were Tajirika, Karembo, Kibandameno, and Shibe which were all confirmed by farmers as susceptible to cassava bacterial blight. During the survey, plant samples were randomly collected in the field. Out of the 70 samples collected, 40 of them were confirmed positive with X.pv manihotis and X.pv cassavae which cause cassava bacterial blight. The study concluded that there is a widespread of cassava bacterial blight in Kilifi and Taita taveta counties. Kilifi County had the highest incidence of 22% with Taita Taveta having the lowest incidence of 13%. Kilifi County had a higher severity of 8% as compared to Taita Taveta which had 5% Severity. Therefore there is a need for a proper management program to be deployed in managing the disease to enhance cassava production in the region.
Agricultural Science, Volume 2; https://doi.org/10.30560/as.v2n2p99
Soybean is a drought tolerant crop which can grow from low to medium altitudes. In the lowland areas of North-Western Tigray the growing of leguminous crop is very low. To introduce soybean commodity in North-western Tigray, demonstration of improved soybean varieties were conducted in 2018/19. The trail was conducted at Tahtay Adyabo and Tselemti Districts that have a potential for growing the soybean. It was conducted by selecting three Kebelles from the districts. A total of 35 farmers were involved in the intervention. The necessary training was given to the participant farmers and experts. Following this improved seed of Awassa-95 and Gizo varieties at Tahtay Adyabo Districts, and Wegayen and Gizo seed at Tselemti District were offered to participant farmers. Each farmer have been planted a plot size of 0.02 ha for each of the two varieties. The descriptive result shows, Awassa-95 soybean variety has given significantly higher yield at Tahtay Adyabo as compared to Gizo variety. The variety was gave an average yield of 1067 kg/ha and 570 kg/ha respectively Awassa-95 and Gizo varieties. On the other hand an average yield of 1231 kg/ha and 1052 kg/ha, respectively was obtained for Gizo and Wegayen varieties at Tselemti District. This shows that Tselemti District is more better for the cropping of Gizo variety. Moreover, the improved soybean verities (Gizo at Tselemti district and Awassa-95 at Tahtay Adyabo district) were found to be early maturing and best option to moisture stressed areas for the society protein source. Based on the result it is recommended to be popularize Awassa-95 soybean variety at Tahtay Adyabo District and Gizao soybean varieties at Tselemti District to large farmers. Therefore, the research center and the office of agriculture and rural development of the Districts to be popularized the varieties to large number farmers of the areas.
Agricultural Science, Volume 2; https://doi.org/10.30560/as.v2n2p49
An experiment was conducted at Regional Agricultural Research Station, Jashore, Bangladesh during rabi season of (2019-2020) to evaluate the effect of foliar application of urea on growth and yield of short durative lentil variety (BARI Masur-9). The experiment was conducted in split plot design with three replications where time of urea spraying, P1= at branching stage, P2= at pod initiation stage were distributed in main plots and doses of urea spraying T1= application of 100% recommended fertilizers as basal except urea, T2= application of 100% recommended fertilizers as basal, T3= application of 75% of urea with 100% of other fertilizers as basal and rest of the 25% of urea by spraying, T4= application of 25% of urea with 100% of other fertilizers as basal and rest of the 75% of urea by spraying, T5= application of 50% of urea with 100% of other fertilizers as basal and rest of the 50% of urea by spraying were distributed in sub plots. The highest plant height, number of pods per plant were obtained from application of 75% of urea with 100% of other fertilizers as basal and rest of the 25% of urea spraying at pod initiation stage. The highest seed yield was also found from application of 75% of urea with 100% of other fertilizers as basal and rest of the 25% of urea spraying at pod initiation stage followed by application of 100% recommended fertilizers as basal and application of 50% of urea with 100% of other fertilizers as basal and rest of the 50% of urea by spraying at branching stage. Plant height, pods per plant and days to maturity showed positive correlation with seed yield. On the other hand days to flower and plants per m2 has no linear relationship with seed yield. The highest marginal benefit cost ratio (3.29) was recorded from application of 75% of urea with 100% of other fertilizers as basal and rest of the 25% of urea by spraying at pod initiation stage. So based on findings to increase the yield potential of BARI Masur-9 foliar application of urea may be a tool and hence application of 75% of urea with 100% of other fertilizers as basal and rest of the 25% of urea by spraying at pod initiation stage may be consider as the best treatment.
Agricultural Science, Volume 2; https://doi.org/10.30560/as.v2n2p148
The purpose of the present study was to evaluate the effect of vernalization and GA3 on seed yield and reproductive quality of summer onion. There were three vernalization treatments viz., no vernalization (control), vernalization at 5°C for 14 days and vernalization at 10°C for 14 days and four GA3 treatment viz., 0, 50, 100 and 150 ppm. The two-factor experiment was conducted in the Randomized Complete Block Design (RCBD) with three replications. Combination between vernalization and GA3 was significant on the parameters such as plant height, number of leaves plant-1, the highest number of flowering stalk, number of umbels plant-1, number of bud umbel-1, percent flowering at 45 and 60 DAP, number of seeds umbel-1, weight of seeds umbel-1, weight of seeds plant-1, weight of seeds plot-1, 1000 seed weight, seed yield, number of fruits umbel-1, percent of fruit set umbel-1and percent germination. Combined effect of vernalization & GA3 was considered the highest seed yield (280.42 kgha-1) was obtained from vernalization at 5°C for 14 days with 100 ppm GA3. The lowest values of all the parameters were recorded in the control treatment. No limitation is found in the present experiment. Combined use of proper vernalization of mother bulb and suitable concentration of gibberellic acid can be one possible way to expand onion production during the summer.