scholarly journals Lemna minor Cultivation for Treating Swine Manure and Providing Micronutrients for Animal Feed

Plants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1124
Author(s):  
Reindert Devlamynck ◽  
Marcella Fernandes de Souza ◽  
Jan Leenknegt ◽  
Liesbeth Jacxsens ◽  
Mia Eeckhout ◽  
...  

The potential of Lemna minor to valorise agricultural wastewater into a protein-rich feed component to meet the growing demand for animal feed protein and reduce the excess of nutrients in certain European regions was investigated. Three pilot-scale systems were monitored for nine weeks under outdoor conditions in Flanders. The systems were fed with a mixture of the liquid fraction and the biological effluent of a swine manure treatment system diluted with rainwater in order that the weekly N and P addition was equal to the N and P removal by the system. The design tested the accumulation of elements in a continuous recirculation system. Potassium, Cl, S, Ca, and Mg were abundantly available in the swine manure wastewaters and tended to accumulate, being a possible cause of concern for long-operating recirculation systems. The harvested duckweed was characterised for its mineral composition and protein content. In animal husbandry, trace elements are specifically added to animal feed as micronutrients and, thus, feedstuffs biofortified with essential trace elements can provide added value. Duckweed grown on the tested mixture of swine manure waste streams could be considered as a source of Mn, Zn, and Fe for swine feed, while it is not a source of Cu for swine feed. Moreover, it was observed that As, Cd, and Pb content were below the limits of the feed Directive 2002/32/EC in the duckweed grown on the tested medium. Overall, these results demonstrate that duckweed can effectively remove nutrients from agriculture wastewaters in a recirculated system while producing a feed source with a protein content of 35% DM.

Author(s):  
Mohamad Satori ◽  
Ivan Chofyan ◽  
Yuliadi Yuliadi ◽  
Otong Rukmana ◽  
Ira Ayu Wulandari ◽  
...  

Organic waste is the largest composition of waste generated by the people of Indonesia, which is around 50-60%. This type of waste, especially food waste, is easy to smell if it is stored for too long so that it has the potential to pollute the environment. On the other hand, organic waste has good nutrients that can be generated, including through BSF (Black Soldier Fly) maggot bioconversion treatment. The BSF maggot bioconversion method is a method of processing organic waste which is carried out by converting organic matter into other products that are useful and have added value by utilizing biological processes from microorganisms and enzymes. Organic waste treatment with this method is generally carried out on a community-based basis and is integrated with the development of agriculture, fisheries and animal husbandry, because maggot cultivation produces commodities of economic value such as compost and maggot larvae. Compost contains very good nutrients so that it can be used for organic farming and maggot contains high protein that can be used for animal feed and fisheries. The implementation of this program was piloted in the boarding school community, namely the Az-Zakaria Islamic Boarding School which is managed by the Az-Zakaria Islamic Education Foundation (YPI) in Sindangbarang Village, Jalaksana District, Kuningan Regency. The result of this implementation is the formation of a new group of entrepreneurs engaged in the cultivation and utilization of BSF maggots.


Author(s):  
R. Rizki El Akbar

Abstrak Kualitas susu kambing diperkirakan dipengaruhi oleh beberapa faktor, diantaranya adalah perbedaan periode laktasi. Tujuan penelitian ini adalah untuk mengetahui dan mempelajari kadar protein dan susu kambing Saanen pada Laktasi ke 1 dan 2. Penelitian dilakukan di Balai Besar Pembibitan Ternak Unggul–Hijauan Pakan Ternak (BBPTU-HPT) Baturraden-Purwokerto Jawa Tengah selama dua minggu dari 4-18 Januari tahun 2018. Metode penelitian adalah studi kasus dengan objek penelitian kambing Saanen. Data yang digunakan adalah data kadar lemak dan protein susu kambing Saanen yang berasal dari 11 ekor kambing Saanen pada laktasi ke 1 dan 2. Uji t digunakan untuk mengetahui perbedaan rataan nilai kadar lemak dan protein susu kambing Saanen pada laktasi ke 1 dan 2. Hasil penelitian menunjukan kadar lemak kambing Saanen pada laktasi ke 1 lebih baik dari laktasi ke 2 (3,20% vs 2,75%). Kadar protein kambing Saanen pada laktasi ke 1 lebih baik dari laktasi ke 2 (3,01% vs 2,73%). Kata Kunci : Kambing, Saanen, Lemak, Susu, Protein Abstract The quality of goat milk is estimated to be influenced by several factors, including the difference in the lactation period. The purpose of this study was to determine and study the protein and milk content of Saanen goats at Lactations 1 and 2. The study was conducted at the Center for Animal Husbandry for Superior-Forage Animal Feed (BBPTU-HPT) Baturraden-Purwokerto Central Java for two weeks from 4-18 January 2018. The research method is a case study with Saanen goat research object. The data used are data on fat and protein content of Saanen goat milk derived from 11 Saanen goats at lactations 1 and 2. T test was used to determine differences in the average value of fat and protein content of Saanen goat milk in lactations 1 and 2. The results of the study showed that Saanen goat fat content at lactation 1 was better than lactation 2 (3.20% vs 2.75%). Saanen goat protein content at lactation 1 was better than lactation 2 (3.01% vs 2.73%). Keywords: Goat, Saanen, Fat, Milk, Protein


Antibiotics ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1397
Author(s):  
Mohamed S. Gaballah ◽  
Xin Li ◽  
Zijia Zhang ◽  
Abdulaziz Al-Anazi ◽  
Hui Sun ◽  
...  

The use of various veterinary antibiotics (VAs) in animal husbandry raises serious concerns about the development of antibiotic resistance. Antibiotics such as tetracycline, oxytetracycline, sulfadiazine, norfloxacin, and enrofloxacin are the most frequently used antimicrobial compounds in animal husbandry and generate large eco-toxicological effects; however, they are still difficult to determine in a complex matrix such as swine manure. This study has developed an effective method for detecting five VAs in swine manure using Ultra-High-Performance Liquid Chromatography–Diode Array Detector (UHPLC–DAD) coupled with on-line solid-phase extraction (SPE). The results show that the mobile phase of ACN/0.01 M oxalic acid was the optimum at pH 3.0. VAs in a swine manure matrix were extracted using solid extraction buffer solution (T3) with 97.36% recovery. Sensitivity, accuracy, and precision were also evaluated. The validity study showed good linearity (R2 > 0.99). Limit of detection (LOD) was found to be from 0.1 to 0.42 µg mL−1 in the liquid fraction and from 0.032 to 0.58 µg g−1 dw in the solid fraction. The corresponding values of the limit of quantification (LOQ) ranged from 0.32 to 1.27 µg mL−1 for the liquid fraction and from 0.096 to 1.77 µg g−1 dw for the solid fraction. Therefore, the proposed method showed the potential applicability for detecting different antibiotic compounds from swine manure samples.


2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Carolina Ghilardi ◽  
Paola Sanmartin Negrete ◽  
Amalia Antonia Carelli ◽  
Virginia Borroni

Abstract The “alperujo” is a waste from the olive oil industry with great potential for valorization. It has a high organic load, with the presence of valuable compounds such as biophenols and sugars. The use of this waste can be thought of as a biorefinery from which different compounds of high added value can be obtained, whether they are present in the “alperujo” such as biophenols or can be generated from the “alperujo”. Therefore, the production of carotenoids by Rhodotorula mucilaginosa was evaluated using the liquid fraction of ‘alperujo’ (Alperujo Water, AW) or an aqueous extract (AE) of “alperujo” at different concentrations (5, 10, 20 and 30% w/V) as substrates. The AEs had an acidic pH, a total sugar concentration ranging from 1.6 to 7.6 g/L, a polyphenols content from 0.4 to 2.9 g/L and a significant amount of proteins (0.5–3 g/L). AW is similar in composition as 30% AE, but with a higher amount of total sugars. Rh. mucilaginosa was able to grow at the different mediums with consumption of glucose and fructose, a reduction in protein content and alkalinization of the medium. Maximum total carotenoid production (7.3 ± 0.6 mg/L) was achieved at AW, while the specific production was higher when the yeast grew at AW or at 30% AE (0.78 ± 0.06 and 0.73 ± 0.10 mg/g of biomass, respectively). Torulene and torularhodin were the main carotenoids produced. Polyphenol content did not change; thus, it is still possible to recover these compounds after producing carotenoids. These results demonstrate the feasibility of using alperujo-based mediums as cheap substrates to produce torularhodin and torulene and to include this bioprocess as a step in an integral approach for alperujo valorization.


Author(s):  
D.S. Tazhbaeva ◽  
◽  
M.V. Kovalenko ◽  

Linear-weight indicators of pilengas growth were analyzed when using feed with different protein content. When fed with granulated high – protein feed (52%), the absolute increase was 8.7 g, and the average daily increase was 0.29 g/day. Feed with a protein content of 45% showed less growth results (absolute-4.4 g, average daily-0.15 g/day). This result is due to the high content of protein, fat, vitamins, minerals and trace elements.


2014 ◽  
Author(s):  
Νικόλαος Ξυνός

The experimental work of this PhD thesis has been scheduled on a three-axis base. Theaims that were set, they concerned the optimal exploitation of four different by-products of the table olive, olive oil and olive kernel oil industries, for the recovery of specific highadded-value compounds with well-known biological properties. Those natural productswere desired either in the form of enriched fractions or pure compounds. The prerequisitewas to utilize as eco-friendly technologies as possible for extraction and purification and tooptimize the processes in laboratory as well as in pilot scale. Thus, trustworthy estimationof industrial feasibility is provided. The main technologies that were implicated for therecovery of the target compounds are: Supercritical fluid extraction Pressurized liquid (and subcritical water) extraction Liquid/liquid extraction Adsorption resin technology Centrifugal Partition ChromatographyThe by-products that were the subject of the tracing/ extraction/ enrichment/identification/ quantification on studies for this PhD thesis were the following: Olive leaves (by-products of the pruning of the trees and of the olive fruit harvest) Olive mill pomace waste (biphasic process) Table olive process wastewater (by-product of the debittering process for theproduction of table olives) Olive kernel oil deodorization distillates (by-product of the refining process for theproduction of olive kernel oil from olive pomace)The natural compounds that were targeted for their recovery, enrichment and isolation dueto their well-established (and still under research) biological properties and theirapplication in pharmaceutical, phytotherapeutical, nutraceutical, cosmetic andcosmeceutical industries were respectively: Oleuropein Hydroxytyrosol SqualeneIn all cases, not only biomarkers’ content but also the overall chemical profile of theextracts was studied. The applied scientific interest of this work was that novel green extraction technologies and combinatorial processes as well as experimental design wereimplemented in lab and pilot scale for the exploitation of certain by-products that occur invery large quantities every year as a result of the agricultural/ industrial processing of theolive tree, with the aim of recovering high added value natural products.


PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11934
Author(s):  
Jiashun Chen ◽  
Fang Wang ◽  
Yexin Yin ◽  
Xiaokang Ma

Garlic (Allium sativum) is an essential vegetable that has been widely utilized as seasoning, flavoring, culinary and in herbal remedies. Garlic contains several characteristic organosulfur compounds, such as diallyl sulfide, allicin (diallyl thiosulphate), γ-glutamylcysteine, and S-allyl cysteine (alliin) and ajoene, which garlic has beneficial effects on inflammation, oxidative stress markers, hypertension, hyperlipidaemia and endothelial function in vitro or in animal model. These bioactive molecules are also playing pivotal role in livestock and fisheries production apart from its application in humans. Supplementation of animal feed with garlic and its related products is consistent with the modern agricultural concept of organic animal husbandry. This review compiles the information describing the effects of feeding garlic and its extracts on selected performance parameters in animals (chicken, rabbits, ruminants, pigs and fish). This review may provide reference for scientists and entrepreneurs to investigate the applications of feeds added with garlic and allicin by-products for the improvement of animal husbandry and aquatic production.


2020 ◽  
Vol 36 (1) ◽  
pp. 71-80
Author(s):  
S. A Dattijo

Due to many ways by which they are exploited, insects and their products could be a very big business. They are sold for agricultural protection, crop pollination, as well as human, livestock and pet nutrition. In addition, their products are sold for pharmaceuticals, health, and the implements for research, art works and a host of other uses. This review focused on commercialization of insects and their products with a view of sharing existing knowledge on global commerce of various insects and their products. Available literature revealed that there was an increase in demand for edible insects in the United States of America and prices were as high as $150 kg-1. Similarly, between 2010 and 2015, animal feed market in the United Kingdom grew at 3.5% annually and is currently worth £5 billion. Because of its scarcity, high demand, and recognition of its healing properties, royal jelly, one of the most sought after from bee products commands astronomical price internationally. In addition, no any other industry could generate high level of employment as sericulture, especially in rural areas where it takes 11 workdays to produce a Kg of raw silk. The contribution insects and their products can give to improve the economy of a developing country such as Nigeria is considerable, but underestimated or neglected. Insects are unlikely to make a major contribution in the near future, but the idea that they are potential source of overcoming the economic problems is not as farfetched as it seemed. Therefore, there is the need to adopt an added value approach to insects and their products and sensitize as well as encourage small-scale farmers, who are disadvantaged in international market participation due to lack of access to information, services, technology or the capacity, to produce larger volumes of quality insect products.


2019 ◽  
Vol 5 (1) ◽  
pp. 74-78
Author(s):  
Mohammed Saedi Jami ◽  
Mani Malam Ahmad ◽  
Olalere Olusegun Abayomi ◽  
Mohammed Ngabura

Moringa oleifera is a well-known tropical plant with myriads medicinal and nutritional benefits. Its nutraceutical functions are due to the presence of mineral element and phytochemical components which necessitate their profiling. In this study, the elemental and chemical profiles of husk wastes from Moringa oleifera plants were elucidated using Liquid Chromatography equipped with an electrospray time-of-flight mass spectrometer (LCMS-QToF) and X-ray Fluorescence analyser. The confirmation of 493 bioactive compounds and two higher concentrations of micronutrients (calcium and potassium) indicated the potential of the Moringa oleifera extracts for medicinal and nutritional purposes. Also, the minimal presence of trace elements such as Cu, Si, Mo and Sr showed that they are non-toxic and can therefore be used as food supplement for both human and in animal feed. The result of this researchcould therefore provide lead for future investigation.


Author(s):  
E. A. Sizova ◽  
A. M. Makaeva

Preparations of highly dispersed particles of trace elements are increasingly used in animal husbandry. This is determined by their extraordinary biological properties such as the ability to penetrate into tissues and organs, a high surface area, and so on. One of the promising directions for using highly dispersed particles both in the post-embryonic and embryonic periods of animal development is the use of trace elements as sources. This is determined by the relatively lower toxicity, higher bioavailability of elements from preparations of highly dispersed particles, which reduces the load on the environment and allows you to produce products enriched with minerals. The purpose of the research was to study the effect of highly dispersed drugs on rumen digestion, the composition of the rumen microbiome, metabolism and productivity of young cattle. A comprehensive assessment of the use of highly dispersed SiO2 and FeCo preparations in cattle nutrition has been provided in the paper. The digestibility of feed, metabolism, and productivity of young cattle when feeding highly dispersed particles have been studied. An unusual fact of increasing bacterial biomass when using highly dispersed particles of silicon dioxide in animal feeding has been described. A method for increasing the digestibility of feed components by ruminants through the use of highly dispersed FeCo alloy particles has been proposed. As follows from the data obtained the use of highly dispersed particles allowed to increase the live weight of experimental young animals to 413 kg in the 1st experimental group and 416 kg in the 2nd experimental group, which was by 11 (P ≤ 0,01) and 14 kg (P ≤ 0,01) higher than the control indicator. As follows from the analysis of the data obtained, the profitability of rearing young animals in the 1st and 2nd experimental groups was by 2,4 and 2,2 % higher than the same indicator calculated for the control group.


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