Preparation of salbutamol imprinted magnetic nanoparticles via boronate affinity oriented surface imprinting for the selective analysis of trace salbutamol residues

The Analyst ◽  
2019 ◽  
Vol 144 (9) ◽  
pp. 3128-3135 ◽  
Author(s):  
Zijun Bie ◽  
Weiman Zhao ◽  
Zhongyuan Lv ◽  
Songlin Liu ◽  
Yang Chen
Keyword(s):  
Magnetic Nanoparticles ◽  
Animal Husbandry ◽  
Feed Additives ◽  
Surface Imprinting ◽  
Oriented Surface ◽  
Selective Analysis

Salbutamol (SAL) is one of the most widely abused feed additives in animal husbandry.

PEGylation of boronate-affinity-oriented surface imprinting magnetic nanoparticles with improved performance

Talanta ◽  
2021 ◽  
pp. 122992
Author(s):  
Yi Luo ◽  
Chen-Chen Bai ◽  
Ming-Xia Liu ◽  
Di Wang ◽  
Meng-Ying Chen ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Surface Imprinting ◽  
Oriented Surface ◽  
Improved Performance

scholarly journals Selected Alternative Feed Additives Used to Manipulate the Rumen Microbiome

Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1542
Author(s):  
Marta Michalak ◽  
Konrad Wojnarowski ◽  
Paulina Cholewińska ◽  
Natalia Szeligowska ◽  
Marcel Bawej ◽  
...  
Keyword(s):  
Digestive System ◽  
Animal Husbandry ◽  
Review Article ◽  
Feed Additives ◽  
Microbial Fermentation ◽  
Plant Origin ◽  
Gelidium Amansii ◽  
Alternative Feed ◽  
Rumen Microbiome ◽  
General Recognition

In recent years, a boost in the ruminant population has been observed, and consequently, an increase in the animals’ demand for nutrients and methane emissions. Methane emission is generated during the microbial fermentation of feed in the rumen, and a percentage even up to 12% of the energy obtained by this process can be wasted. In addition, the use of antibiotics in animal husbandry is being increasingly restricted. restricted. As a result, there is a continuous search for innovative feed additives that can serve as alternatives to antibiotics, and will also be safe for both people and the environment. In the present review article, additives were selected on basis that, according to studies conducted so far, may positively affect the microbiome of the digestive system by improving indicators and/or reducing methane production. Among them, probiotics, prebiotics or their combination—synbiotics are at the forefront of research. However, additives in the form of algae or plant origin are also gaining ground in popularity, such as essential oils, fermented wheat straw or Gelidium amansii, due to their general recognition as safe (GRAS) for both humans and environment.

Preparation of the copper-containing metallogels based on chitosan for biomedical and agricultural applications

2020 ◽  
Vol 1 (8) ◽  
pp. 60-70
Author(s):  
A. A. Vikhrov ◽  
◽  
V. P. Zubov ◽  
S. Yu. Zaytsev ◽  
◽  
...  
Keyword(s):  
Electrostatic Interactions ◽  
Animal Husbandry ◽  
Chitosan Solution ◽  
Additional Treatment ◽  
Feed Additives ◽  
Farm Animals ◽  
Cross Linking ◽  
Improved Method ◽  
Polymer Complexes ◽  
Promising Alternative

It is well-known, due to the geological features in a number of regions of the Russian Federation, there may be a shortage of certain microelements and other important “nutrients” in animal diets. The main approach to solve this problem is to use special feed additives. At present, preparations based on organic sources, for example, metal-polymer complexes, are considered a promising alternative. The purpose of this study is to develop an improved method for preparation of the copper-containing polysaccharide complexes and to study their most important parameters. Using CuCl2 as an example, it was shown that the formation of chitosan hydrogels is possible without the usage of potentially hazardous cross-linking agents (for example, glutaraldehyde) or polyvalent anions (for example, SO4 2–), which provide non-covalent cross-linking of chitosan due to electrostatic interactions with NH3 + in its composition. It was found that, upon frontal «gelation» of a 2% chitosan solution (MM 400±100 kDa) in acetic acid (1 vol%), the formation of stable metal gels is observed provided that the content of CuCl2 and ethanol in the precipitant solution is more than 40 mg/ml or more than 24 vol.%, respectively (Vchitosan = Vprecipitant). The obtained complexes are stable in aqueous-alcoholic solutions and swell in water up to destruction (pH 5,5). After additional treatment with an aqueous 1,5% ammonia solution, complexes practically do not swell in solutions with ≥ pH 5,5 (at least τ = 6 days) and dissolve at pH ≤ 4,2. Thus, the use of these complexes is able to provide the release of Cu2 + not in the rumen (pH 6,3–7,2), but in the abomasum (pH ~ 3), which can increase the bioavailability of copper. The development of an improved method for obtaining metal-polysaccharide complexes in a gel form that does not contain «ballast» (in terms of nutritional value and physiology of farm animals) anions (for example, SO4 2–) opens up new opportunities for the development of highly effective feed additives for animal husbandry.

scholarly journals The nutritional applications of garlic (Allium sativum) as natural feed additives in animals

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11934
Author(s):  
Jiashun Chen ◽  
Fang Wang ◽  
Yexin Yin ◽  
Xiaokang Ma
Keyword(s):  
Allium Sativum ◽  
Animal Feed ◽  
Animal Husbandry ◽  
Feed Additives ◽  
Bioactive Molecules ◽  
Herbal Remedies ◽  
Organosulfur Compounds ◽  
Beneficial Effects ◽  
Stress Markers

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.

scholarly journals Rural women empowerment through small scale poultry farming: A case study of Vattamkulam model, Malappuram

2020 ◽  
Vol 1 (2) ◽  
pp. 126-130
Author(s):  
S. L. Gayathri ◽  
M. Muhammed Asif
Keyword(s):  
Mortality Rate ◽  
Rural Women ◽  
Animal Husbandry ◽  
Feed Additives ◽  
Small Scale ◽  
Meat Production ◽  
Average Weight ◽  
Women Empowerment ◽  
Broiler Meat ◽  
Short Period

Abstract: The Animal husbandry department of Kerala and local self-government department and Kudumbashree mission has started a plan during 2018-19 entitled “Backyard broiler farming” at Vattamkulam Gramapanchayath, Edappal, Malappuram district. The said plan was advertised as ‘Earn money at your doorstep through broiler farming’ and was welcomed by more than 40 household women. The farmers who owned a land area, not less than 10 cents were selected for this model. The local self- Government provided the shelter arrangements including cages for free of cost. The Animal husbandry department has supplied chicks (Day old Cobb varieties) and feed and aided Kudumbashree unit to market these broilers. The speciality of broiler farming is that within a short period (35 – 40 days) a chick gains an average weight of 2 – 2.3 kg, which can be sold at market to earn a reasonable margin of profit for farmers. The usual mortality rate was 5% for broiler farming, but it was less than 2 % in this model. Modified vaccination protocol against the viral disease Gumboro (I.B.D), has been adopted for this model to reduce the mortality rate. Also, antibiotics as feed additives were not supplemented in this model. Within 40 days, these women entrepreneurs are getting a good profit from meat production alone. This broiler meat is marketed under the brand name of Vattamkulam Safe Chicken. The Vattamkulam backyard broiler farming helps the household women support themselves and provide safe and quality meat to society in which they belong. Keywords: Women empowerment, Vattamkulam Model, Broiler farming

BACKGROUND CONTENT OF TECHNOGENIC AND NATURAL RADIONUCLIDES IN DETOXIFYING AND BIOLOGICALLY ACTIVE SUBSTANCES

2021 ◽  
Vol 1 (2) ◽  
pp. 223-229
Author(s):  
G.А. Zhorov ◽  
◽  
L.L. Zakharova ◽  
V.N. Obryvin ◽  
◽  
...  
Keyword(s):  
Specific Activity ◽  
Raw Materials ◽  
Natural Radionuclides ◽  
Animal Husbandry ◽  
Maximum Level ◽  
Feed Additives ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Radioactive Isotopes ◽  
Active Substances

For correctly assess the effectiveness and safety of the use of sorption-detoxifying agents and feed additives intended for animals receiving feed with an excess content of toxicants, it is necessary to take into account the background levels of radionuclides, toxic elements, pesticides and other technogenic and natural pollutants in the studied substances. The need for such studies is due both to the existence of areas with a naturally elevated level of natural toxicants in the sources of raw materials for the production of additives and drugs, and to the increasing anthropogenic influence, accompanied by the entry of xenobiotics into environmental objects. In series of radiometric studies, the specific activity of technogenic and natural radioactive isotopes (90Sr, 137Cs, 40К, 226Ra, 232Th) in a number of sorption-detoxifying and biologically active substances and preparations used in animal husbandry and veterinary medicine as part of feed additives and pharmacological agents was determined. It was found that in 43% of the studied samples, the level of specific activity of 1,1Sr in 3-90 times higher than allowed by the current standards. The maximum level of 90Sr, equal to (137±9) Bq/kg, was detected in perlite. The specific activity of 137Cs did not exceed the permissible level: in mineral sorbents its amount reached (40±7) Bq/kg, in organic and complex sorbents – (24±4), and in feed additives – (29±8) Bq/kg. The maximum levels of 40K were (1429±83) Bq/ kg in minerals (radionite) and (2613±100) Bq/kg in organic substances (lignohumate). The levels of 226Ra and 232Th did not exceed (153±13) and (79±13) Bq/kg, respectively, and were higher in the mineral samples.

Digestibility of nutrients and energy metabolism in lactating cows when sapropel is included in the ration

2021 ◽  
pp. 22-27
Author(s):  
L. P. Yarmots ◽  
G. A. Yarmots ◽  
A. E. Belenkaya ◽  
M. O. Smyshlyaeva
Keyword(s):  
Energy Metabolism ◽  
Milk Fat ◽  
Animal Husbandry ◽  
Feed Additives ◽  
The Body ◽  
Biologically Active ◽  
Main Trend ◽  
Control Group ◽  
Lactating Cows ◽  
Positive Effect

Unbalanced mineral and vitamin nutrition of lactating cows can be a critical factor in the realization of their productive potential. The development and introduction into production of inexpensive, but effective feed additives is the main trend of improving the feeding of modern animal husbandry. Under the conditions of the Tyumen region such natural raw materials can be sapropels, which successfully combine a variety of biologically active substances. The purpose of the research was to study the digestibility of nutrients and energy metabolism in lactating cows when sapropel is included in the ration. Scientifi c and economic experiment in the study of the effectiveness of feeding sapropel lake Nepryak has been carried out in the training and experimental farm of the State Northern Trans-Urals Agrarian University. The animals of the control group have been fed the main diet. Cows of the 1st and 2nd experimental groups have been fed 300 and 500 g of sapropel per head/day, respectively, in addition to the main ration. It has been found as a result of research that the introduction of sapropel into the ration of cows has a positive effect on the digestibility of nutrients. The digestibility coefficients were higher in the animals of the 1st and 2nd experimental groups compared with the cows of the control group. Cows from the experimental groups digested all the organic substances of the ration better. During the experiment period cows of the 1st and 2nd experimental groups in contrast to the control group had higher milk yield by 11,31 and 10,38 %, respectively, milk protein yield by 10,56 and 5,95 %, milk fat yield by 17,18 and 12,99 %. It has been established that the introduction of sapropel into the ration of cows has the positive effect on the digestibility of nutrients, contributes to the increase of milk productivity, normalizes the metabolism in the body.

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