scholarly journals Nutritional quality of ensiled gamba grass (Andropogon gayanus) fortified with graded levels of Centro (Centrosema pascourum)

2020 ◽  
Vol 47 (1) ◽  
pp. 234-245
Author(s):  
A. J. Amuda ◽  
B. O. Alabi ◽  
S. A. Jonah
Keyword(s):  
Fatty Acids ◽  
Nutritional Quality ◽  
Crude Protein ◽  
Volatile Fatty Acids ◽  
Standard Procedure ◽  
Nitrogen Concentration ◽  
Crude Fibre ◽  
Yellow Colour ◽  
Andropogon Gayanus

The study was conducted with the field grown gamba grass (Andropogon gayanus) and Centro (Centrosema pascourum) to examine the nutritional quality of gamba grass ensiled with graded levels of Centrosema pascourum. The forages were harvested separately chopped into 2-3cm length manually and mixed thoroughly as follows: (100:0, 90:10, 80:20,70:30, 60:40, 50:50 and 40:60% of Andropogon gayanus: Centrosema pascourum, respectively) and designated as T1 , T2 , T3 , T4 , T5 , T6 and T7 respectively. The treatments were ensiled in a laboratory using bottle silos in triplicates per treatments and kept for 30 days fermentation period. The silages were evaluated for quality characteristics, proximate composition, fibre fractions, volatile fatty acids composition and ammonia nitrogen concentration (NH3 -N) using standard procedure. The results obtained showed that the silages were adequately fermented with pleasant and fruity odour, greenish-yellow colour, firm and dry texture. The pH, ether extract (EE), nitrogen free extract (NFE), organic matter (OM) and Ash contents of the silages were similar across the treatments (P<0.05). However, the crude protein (CP) contents of silages (9.44-14.88%), varied significantly (P<0.05) across the treatments. The crude fibre (CF), cellulose, hemicellulose and fibre fractions (neutral detergent fibre (NDF) and acid detergent fibre (ADF) of the silages differed significantly (P<0.05) except for acid detergent lignin (ADL) which was similar across the treatments. Other parameters such as volatile fatty acids (VFAs), NH3 concentration, temperature (°C) and dry matter (DM) moisture content (MC) differed significantly across the board. The results of this study indicated that ensiled Andropogon gayanus with Centrosema pascourum at varied levels of inclusion improved physico chemical properties of the silages. The inclusion of Centrosema pascourum legume forage also improved the crude protein (CP) contents of ensiled gamba grass significantly. Thus, the study recommends the use of 60% Andropogon gayanus and 40% Centrosema pascourum, which is practicable and obtainable.

The effect of level of water intake on some aspects of digestion and nitrogen metabolism of the ‘desert sheep’ of the Sudan

1974 ◽  
Vol 82 (1) ◽  
pp. 61-69 ◽  
Author(s):  
H. Elsayed Osman ◽  
B. Fadlalla
Keyword(s):  
Fatty Acids ◽  
Nitrogen Metabolism ◽  
Water Intake ◽  
Volatile Fatty Acids ◽  
Nitrogen Concentration ◽  
Water Restriction ◽  
Crude Fibre ◽  
Nitrogen Free Extract ◽  
Dactyloctenium Aegyptium

SUMMARYFive successive trials were conducted using eight adult rams (Sudan desert sheep) to study the effect of restriction of water intake on some aspects of digestion and nitrogen metabolism. The feeds used in this study were berseem hay (Medicago sativa), lubia hay (Dolichos lablab), maize hay (Zea mais), a concentrate mixture, and dry desert grasses (hummra) (a mixture ofDactyloctenium aegyptium, Schoenefeldia gracilis, Eragrostis pilosa, Aristida funiculataandAristidaspp.).Restriction of water did not affect the digestibility coefficients of organic matter, crude protein and crude fibre significantly. The digestibility coefficient of ether extract was significantly reduced whereas that of nitrogen-free extract was slightly higher when water was restricted.The concentrations of ammonia and volatile fatty acids in the rumen and of urea in the blood were recorded before and 3 h after feeding. Increases in rumen ammonia and blood urea nitrogen concentration were reduced by water restriction except when hummra was fed.Restriction of water intake also slightly increased thein vitrorate of fermentation of rumen contents which is taken as a measure of microbial activity in the rumen, and the retention of nitrogen. These results are interpreted as indications of more efficient nitrogen utilization under conditions of water restriction.There were no significant effects of the treatments on changes in the concentration of volatile fatty acids.The significance of these findings in relation to the management of desert sheep in the arid parts of the Sudan is discussed with special reference to the effect of the level of dry-matter intake on nitrogen balance.

scholarly journals Microbiological and Nutritional Quality of Market and Home Smoke Dried Shrimp

2020 ◽  
pp. 35-42
Author(s):  
Nwosu, Onyinyechi Rosemary ◽  
Obire, Omokaro ◽  
S. A. Wemedo ◽  
D. N. Ogbonna
Keyword(s):  
Developing Countries ◽  
Aspergillus Niger ◽  
Power Supply ◽  
Nutritional Quality ◽  
Crude Protein ◽  
Carbohydrate Content ◽  
Aerobic Bacteria ◽  
Clean Water ◽  
Crude Fibre

Bacteriological and nutritional quality of market and home smoke dried shrimp was carried out. Fresh and dried shrimps were bought from market. One set of the fresh shrimp was not rinsed before they were home smoke dried and used for analysis, another set was rinsed with clean water before they were home smoke dried and used for analysis and the market dried sample was used for analysis without any treatment. After the home smoke drying, the microbial load and types of microorganisms were determined using standard microbiological technique. The proximate compositions of the fresh shrimp, home smoke dried and market smoke dried shrimp were also determined. The population of the aerobic bacteria, Vibrio, Pseudomonas, fungi, Salmonella-Shigella, staphylococcal and coliform of the market smoke dried were 4.23±3.30, 1.98±3.15, 0.97±2.58, 2.95±2.96, 1.22±2.67, 3.89±3.22 and 1.88±2.86 CFU/10 g, respectively. The population of the aerobic bacteria, Vibrio, Pseudomonas, fungi, Salmonella-Shigella, staphylococcal and coliform of the home smoke dried not rinsed were 4.18±2.75, 2.69±3.43, 0.4±1.44, 1.96±2.8, 1.47±2.72, 2.33±3.08 and 2.85±3.06 CFU/10 g, respectively. The population of the aerobic bacteria, Vibrio, Pseudomonas, fungi, Salmonella-Shigella, staphylococcal and coliform of the home smoke dried rinsed shrimps were 4.11±2.48, 1.09±2.50, 0.00±0.00, 0.00±0.0, 1.56±2.62, 3.35±3.03 and 1.25±2.17 CFU/10 g, respectively. Eight bacteria genera which include Bacillus, Klebsiella, Proteus spp, Providencia, Pseudomonas, Shigella, Staphylococcus and Vibrio were identified. Aspergillus niger, Penicillium sp, Rhizopus oligosporus and Saccharomyces cerevisae were the fungi isolates identified. Although the bacterial types could contain pathogenic strains, proper cooking could inhibit their presence in food. Smoke drying of the seafood could preserve the shellfish longer since the water activity of the seafood is reduced. The Moisture, Ash, fat, crude fibre, crude protein and Carbohydrate content of the fresh shrimps was 69.42±1.33, 2.58±0.23, 1.66±0.00, 3.86±0.18, 17.81±0.78 and 4.18±0.08%, respectively. Also, the Moisture, Ash, fat, crude fibre, crude protein and Carbohydrate content of the Market smoked dried was 15.92±0.23, 10.34±0.72, 0.96±0.05, 11.13±1.22, 51.07±0.00 and 10.59±0.6%, while the Moisture, Ash, fat, crude fibre, crude protein and Carbohydrate content of the Home smoked dried was 9.50±0.00, 8.95±0.07, 0.73±0.11, 9.48±0.60, 67.34±0.00 and 4.02±0.79%, respectively. The home smoked dried shrimps had less moisture content compared to the market dried shrimps. Smoke drying would be recommended for preservation since it does not reduce the nutritional quality of the shrimp and preservation of food has been a great challenge especially in developing countries where there is poor power supply. More so fresh seafood easily perishes especially when they are not well preserved.

scholarly journals Commercial cuts of Pantanal caiman meat according to sex

2017 ◽  
Vol 47 (2) ◽  
Author(s):  
Vitória Regina Takeuchi Fernandes ◽  
Maria Luiza Rodrigues de Souza ◽  
Eliane Gasparino ◽  
Marcos Eduardo Coutinho ◽  
Jesuí Vergílio Visentainer ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Chemical Composition ◽  
Lipid Content ◽  
Nutritional Quality ◽  
Monounsaturated Fatty Acids ◽  
Female Tail ◽  
Lower Protein ◽  
Yield Quality ◽  
Lower Protein Content

ABSTRACT: This study evaluated the yield, color, and chemical composition of commercial cuts (tail, sirloin cut, back fillet, and thigh) of Pantanal caiman meat in both sexes. The yield of tail was higher than other cuts, and the yield of females (17.0%) was higher than males (15.9%). The thigh of males had lower protein content (20.8%) compared with other cuts. Females showed a higher lipid content in the tail (2.4%) and thigh (0.8%) compared with males (1.7% and 0.4%, respectively). The tail presented the greatest content of monounsaturated fatty acids (45.2%) and higher n6/n3 ratio (4.6). Although lightness was not different among cuts or between sexes, there were differences in color. Males have more yellowish meat compared with females. Thigh and back fillet were more reddish when compared to sirloin cut and tail, regardless of sex. In conclusion, female tail meat provided greater yield and lipid content than males, and this result was statistically significant. These findings can help producers and consumers alike, better understand yield, quality, and nutritional quality of Pantanal caiman meat.

scholarly journals Quality of Cattle Meat and Its Compositional Constituents

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Umer Seid Geletu ◽  
Munera Ahmednur Usmael ◽  
Yesihak Yusuf Mummed ◽  
Abdulmuen Mohammed Ibrahim
Keyword(s):  
Fatty Acids ◽  
Meat Quality ◽  
Volatile Fatty Acids ◽  
Near Infrared ◽  
Water Solubility ◽  
Quality Attributes ◽  
Eating Quality ◽  
Human Consumption ◽  
Cattle Meat

Meat is the most valuable livestock product since it is one of the main sources of protein for human consumption. Meat quality can be evaluated according to the following parameters: pH, amount of lactic acid, volatile fatty acids, bounded water, solubility of proteins, color, and tenderness. The meat composition and physical properties of muscles have been characterized for ensuring improved eating quality. Thus, the purpose of this paper was to review the major chemical compositional and physicochemical properties of meat and, at the same time, its quality attributes and factors that affect quality of meat. A number of structural features of meat as connective tissue, muscle fibers, and tendon that attaches the muscle to the bone are visible in joint meat examined through naked eyes. Water is quantitatively the most important component of meat comprising up to 75% of weight. Meat is also composed of amino acids, fatty acids, vitamins, minerals, and other important ingredients. Quality factors perceived by consumers are related to sensory attributes (e.g., color, tenderness, and flavor), nutritional properties (e.g., calories, vitamins’ content, and fatty acids’ profile), and appearance (e.g., exudation, marbling, and visible amount of fat). However, fresh meat quality can be defined instrumentally including composition, nutrients, color, water-holding capacity, tenderness, functionality, flavors, spoilage, and contamination. Visual inspection based on sensory quality attributes and different chemical methods are used to analyze meat quality. Other methods such as computer vision and imaging spectroscopy, gas chromatographic analysis, near-infrared technology, dual-energy X-ray absorptiometry, and computerized tomography scanning are also used in the meat industry. So, the aim of the present review is to review quality characteristics of cattle meat and its composition constituents.

scholarly journals Proximate and Nutritional Composition of Stored Bulb Onions as Affected by Harvest and Postharvest Treatments

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Irene N. Kiura ◽  
Bernard M. Gichimu ◽  
Felix Rotich
Keyword(s):  
Nutritional Quality ◽  
Crude Protein ◽  
Sodium Content ◽  
Nutritional Composition ◽  
Postharvest Quality ◽  
Curing Period ◽  
Allium Cepa L ◽  
Before And After ◽  
Harvesting Stage

Productivity of bulb onions (Allium cepa L.) is largely constrained by postharvest losses. There are several postharvest strategies applicable to onions, but they are mostly applied singularly and therefore their combined effects have not been well studied. This study was set out to evaluate the effects of harvesting stage, curing period, and time of topping on postharvest quality of stored red bulb onions. The study was carried out in Yatta Subcounty, Machakos County, Kenya. The experimental design was split-split plot laid out in a 3 × 3 × 2 factorial arrangement. The treatments consisted of harvesting stage (25%, 50%, and 75% top fall), curing period (none, 1 week, and 2 weeks after harvesting), and time of topping (before and after curing). All the treatments were replicated three times. After 3 months of storage, the bulbs were analyzed for proximate and nutritional composition. Bulbs that were harvested at 75% top fall and cured for one or two weeks before topping retained higher moisture content, bulb weight, crude protein, vitamin C, zinc, potassium, calcium, and iron but lower sodium content after three-month storage. These practices are therefore recommended for maintaining the nutritional quality of bulb onions after harvesting.

scholarly journals The nutritional quality of feedstuffs used in dairy goat nutrition in Vojvodina

2019 ◽  
Vol 35 (2) ◽  
pp. 163-178
Author(s):  
Snezana Paskas ◽  
Jelena Miocinovic ◽  
Branislav Vejnovic ◽  
Zsolt Becskei
Keyword(s):  
Chemical Composition ◽  
Medicago Sativa ◽  
Protein Content ◽  
Nutritional Quality ◽  
Lignin Content ◽  
Dairy Goat ◽  
Crude Fibre ◽  
Significant Difference ◽  
Medicago Sativa L

The study was to conduct to evaluate the chemical composition and nutritive values of feedstuffs (forages and concentrate mixtures) used for dairy goats nutrition in Vojvodina. Samples were collected from six farms, including one organic farm. The results showed that the relative feed values of analyzed forages were in the range of good, medium to lower quality. Average protein content from lowest to highest for investigated forages was: corn silage (Zea Mays) (65.37-82.57g kg??DM), alfalfa haylage (Medicago sativa L.) (159.99-184.17g kg??DM), pasture (185.30g kg?? DM), and alfalfa hay (Medicago sativa L.) (167.48-203.60g kg??DM). The non-fibre carbohydrates and protein content most varied in organic hay samples (cv: 29.25% and 19.09%, respectively). Generally, feedstuffs used in organic nutrition, including organic concentrate, were of lower nutritional quality and moreover contained higher amounts of crude fibre and lignin. Especially, a high source of variation was observed in investigated concentrate mixtures for the crude protein content (p<0.0001), ranged from 135.32 to 209.87g kg??DM. Corn silages also varied substantially in their chemical composition and significant difference (p<0.05) was observed in regard to acid detergent fibre (ADF) and lignin content (ranged: ADF: 242.20-319.24g kg??DM; ADL: 27.98-52.54g kg??DM, respectively). Furthermore, pasture contained the most soluble materials during May and June and their content was related inversely to crude fibre amount. This survey highlights that investigated farms still pay insufficient attention to the quality of the feedstuff. For the development of intensive goat farming, greater emphasis should be placed on using higher quality feedstuffs, as well, standards for feed quality must be considered and established.

scholarly journals THE YIELD STABILITY AND QUALITY OF LEGUMES DURING TWO CONSECUTIVE, EXTREMELY DRY YEARS

2013 ◽  
Vol 59 (4) ◽  
pp. 167-177
Author(s):  
Miriam Kizeková ◽  
Ján Tomaškin ◽  
Jozef Čunderlík ◽  
Ľubica Jančová ◽  
Janka Martincová
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
Dry Matter ◽  
Seasonal Pattern ◽  
Red Clover ◽  
Dry Matter Yield ◽  
Crude Protein Content ◽  
Crude Fibre ◽  
Herbage Quality

Abstract This study highlights the effect of drought and ambient temperature on performance and herbage quality of legume monocultures and grass-legume mixtures. In a field experiment, the total dry matter yield, seasonal pattern of dry matter yield distribution, content of crude protein and crude fibre of monocultures of red clover and alfalfa and grass-legume mixtures were investigated during two consecutive dry years (2011-2012). Alfalfa cultivars Kamila and Tereza grown as monocultures or as mixtures with Festulolium braunii (cultivar Achilles) outperformed the red clover cultivars Fresko and Veles and provided a well-balanced total and seasonal dry matter yield during both years. Across all experimental years, crude protein content was significantly higher at alfalfa monocultures and mixture when compared with clover monocultures (P < 0.05). However, considerable lower content of crude fibre at clover monocultures in comparison with alfalfa ones was found. Responses of nutritive parameters of both legume species to weather variables were different. Crude protein content in red clover was independent of rainfall and temperature. In contrast, the crude fibre content correlated with temperature whereby the alfalfa monocultures showed stronger correlations (P < 0.05) than red clover monocultures.

scholarly journals Organoleptic and nutritional characteristics of fillets of pirapitinga fed different protein sources in a biofloc system

2020 ◽  
Vol 55 ◽  
Author(s):  
Hernán Antonio Alzate Díaz ◽  
Adriana Patricia Muñoz Ramírez ◽  
Maurício Gustavo Coelho Emerenciano ◽  
Sandra Clemencia Pardo Carrasco
Keyword(s):  
Fatty Acids ◽  
Soybean Meal ◽  
Nutritional Quality ◽  
Saturated Fatty Acids ◽  
Monounsaturated Fatty Acids ◽  
Protein Sources ◽  
Nutritional Characteristics ◽  
Biofloc Technology ◽  
Sensory Analyses

Abstract: The objective of this work was to assess the organoleptic and nutritional quality of fillets of cultured pirapitinga (Piaractus brachypomus), fed diets with either partial or total substitution of fishmeal, and to determine the nutritional quality of the biofloc meal. Fish were cultured in 500-L tanks with 84 fish m-3, treated with biofloc technology (BFT), and fed three isoproteic diets (24% crude protein, CP) formulated with the following protein sources: soybean meal (SM); soybean meal + fishmeal (SM+FM); and soybean meal + spirulina (SM+SP). After 84 days of culture, microbiological, nutritional, and sensory analyses were carried out on fillets with skin and without scales. There were not significant differences for dry matter, CP, moisture, and fat content between treatments. The fatty acid profile showed 21.3±1.03% polyunsaturated fatty acids (PUFAs = ω-3 + ω-6), 37.11±1.29% monounsaturated fatty acids (MUFAs), and 41.58±1.34% saturated fatty acids (SFAs). The protein sources soybean meal and spirulina do not affect the fillet quality of pirapitinga nor the nutritional quality of biofloc meal.

scholarly journals Nutritional quality of Chinese cabbage from integrated culture

2008 ◽  
Vol 35 (No. 4) ◽  
pp. 145-150 ◽  
Author(s):  
R. Pokluda
Keyword(s):  
Chinese Cabbage ◽  
Nutritional Quality ◽  
Dry Matter ◽  
Plant Density ◽  
Growing Season ◽  
Crude Fibre ◽  
Higher Plant ◽  
Cultivation System ◽  
Nitrates Content

The evaluation of nutritional quality of Chinese cabbage and the effects of cultivar, weed incidence, plant density and growing season were observed in integrated cultivation system. Mean contents of analysed compounds were as follows: 6% of dry matter, 10% of crude fibre, (in mg/kg of f.m.): 2,199 mg K, 289 mg Ca, 146 mg Mg, 111 mg Na, and 316 mg of vitamin C. Mean content of nitrates reached the value of 647 mg/kg. A significant effect of cultivar on the content of all observed substances in cabbage heads excluding magnesium was thus confirmed; however, a decrease of nitrates was found in the treatment with higher plant density. Weed cultivation caused slightly (insignificantly) higher nitrates content in cabbage heads by 100 mg/kg. Growing season showed a significant effect on content of some evaluated compounds. Integrated cultivation of Chinese cabbage could be an adequate approach to ensure nutritionally valuable products with low nitrates content.

scholarly journals Lake restoration influences nutritional quality of algae and consequently Daphnia biomass

Hydrobiologia ◽  
2020 ◽  
Vol 847 (21) ◽  
pp. 4539-4557 ◽  
Author(s):  
S. J. Taipale ◽  
K. Kuoppamäki ◽  
U. Strandberg ◽  
E. Peltomaa ◽  
K. Vuorio
Keyword(s):  
Fatty Acids ◽  
Nutritional Quality ◽  
Positive Impact ◽  
Essential Fatty Acids ◽  
Keystone Species ◽  
Zooplankton Biomass ◽  
Epa And Dha ◽  
Phytoplankton Communities ◽  
Restoration Measures

AbstractFood quality is one of the key factors influencing zooplankton population dynamics. Eutrophication drives phytoplankton communities toward the dominance of cyanobacteria, which means a decrease in the availability of sterols and long-chain polyunsaturated fatty acids (EPA and DHA). The effects of different restoration measures on the nutritional quality of the phytoplankton community and subsequent impacts on zooplankton biomass have rarely been considered. We analyzed the nutritional quality of phytoplankton in the eutrophic Lake Vesijärvi in southern Finland over a 37-year period, and studied the impacts of two restoration measures, biomanipulation and hypolimnetic aeration, on the abundance of high-quality phytoplankton. We found that biomanipulation had a positive impact on the abundance of taxa synthesizing sterols, EPA, and DHA and, concurrently, on the biomass of the keystone species Daphnia. In contrast, hypolimnetic aeration did not result in such a beneficial outcome, manifested as a decrease in the abundance of Daphnia and frequent phytoplankton blooms dominated by cyanobacteria suggesting reduction in the nutritional quality of food for Daphnia. Our analysis shows that the determination of the nutritional value of algae and the contribution of essential fatty acids and sterols is an effective method to evaluate the success of various restoration measures.

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