Exploring the diversity mechanism of fatty acids and the loss mechanisms of polyunsaturated fatty acids and fat-soluble vitamins in alfalfa silage using different additives

Author(s):  
Cheng Zong ◽  
Qifeng Wu ◽  
Aili Wu ◽  
Sifan Chen ◽  
Dong Dong ◽  
...  
2014 ◽  
Vol 83 (4) ◽  
pp. 371-378 ◽  
Author(s):  
Stanisław Milewski ◽  
Cezary Purwin ◽  
Barbara Pysera ◽  
Krzysztof Lipiński ◽  
Zofia Antoszkiewicz ◽  
...  

Recently, the quality of lamb meat has been regarded with attention to the content of intramuscular fat, and its fatty acid profile. These indicators are determined by the feed administered to the animals. Apparently, the type of silage used in animal nutrition may be important. The objective of this study was to determine the effect of feeding lambs with silages produced from different plant species on selected meat quality traits. The experiment was conducted on 24 ram lambs, divided into 3 equal groups fed with red clover silage, alfalfa silage, and grass silage, respectively. After 60 days of fattening, the lambs were slaughtered. Samples collected from musculus longissimus lumborum were assayed for: contents of intramuscular fat, cholesterol, the vitamins retinol and α-tocopherol, and the fatty acid profile of intramuscular fat. The meat of lambs fed red clover silage was characterized by a higher content of fat compared to lambs receiving grass silage (P ≤ 0.05). The concentration of vitamin E in the group fed grass silage was the highest and differed significantly (P ≤ 0.01) compared to the group fed alfalfa silage. Intramuscular fat of lambs fed red clover silage contained more polyunsaturated fatty acids n-3 and was characterized by a lower ratio of polyunsaturated fatty acids n-6:n-3 compared to the lambs fed grass silage. The concentration of conjugated linoleic acid was higher in lambs fed grass silage compared to fat of lambs from the other groups (P ≤ 0.05). Feeding lambs with silages produced from various plant species had a positive effect on traits characterizing the health quality of meat. Until now, only a few studies have been conducted in this species; this is the first such comprehensive study in sheep.


2021 ◽  
pp. 48-54
Author(s):  
L. S. Starostina

Under current conditions of life with its intense rhythm, launch of new technologies, lack of time, both physical and mental workloads on a person increase. In these days, doctors more often report patients’ complaints of undue tiredness: they don’t feel rested even after a holiday and/or sleep. Today we tend to detect such manifestations not only in adults. Children also become less stress-resistant, more irritable due to an overabundance of information, and are prone to frequent infections. How can we help the growing generation cope with the increasing workloads? There’s no question, everyone knows about the need to use vitamins, but the right choice is not always possible. There are currently many single-component vitamin supplements and vitamin-mineral complexes. Some people prefer not to use industrially produced vitamins, but those contained in the natural products - fruits, vegetables, berries. But unfortunately, such a diet does not include the group of fat-soluble vitamins - A, D, E, K. In addition, far from everyone understands the importance of eating fatty acids. This article is devoted to the feasibility of additional intake of fat-soluble vitamins, polyunsaturated fatty acids (omega-3), their role in the body and deficiency symptoms. It has been established that the polyunsaturated fatty acid deficiency in the early period of life may trigger the development of cardiovascular disorders, problems associated with high cholesterol content, visual impairment, a drop of immunity, learning difficulties, and nervous system disorders in children in later years. Particular attention is paid to the omega-3 polyunsaturated fatty acid supplement combined with vitamins (A, E, D3), which enhance the positive effects. In addition, it does not cause negative emotions since it has a fruity taste.


2020 ◽  
Vol 36 (2) ◽  
pp. 95-106
Author(s):  
Agnieszka M. Piróg-Balcerzak ◽  
Anna K. Bażyńska ◽  
Katarzyna Biernacka ◽  
Joanna Brągoszewska ◽  
Lidia Popek ◽  
...  

Objective. Omega–3 polyunsaturated fatty acids (PUFAs) were tested in adolescent depression and in several neurodevelopmental disorders with partial success. Anorexia nervosa (AN) is characterised by deficiencies in fatty food intake and frequent comorbidity, including depressive and cognitive symptoms. Thus supplementation with PUFAs may be beneficial in this group of patients. The aim of the study was to assess whether PUFAs as an add-on treatment is associated with better improvement of body mass index (BMI) and psychopathological symptoms than placebo in patients with AN. Method. 61 female adolescent inpatients with AN were randomly allocated to omega–3 PUFAs supplementation or placebo for 10 weeks. Patients also participated in the behavioural programme and eclectic psychotherapy (treatment as usual, TAU). At baseline and follow-up visits, patients’ BMI and psychopathology were assessed with Clinical Global Impression Scale (CGI), Patient Global Impression Scale (PGI), and Eating Attitude Test (EAT-26). Results. After 10 weeks, both groups showed improvement in all parameters. Improvement in CGI scores was observed greater in placebo vs. PUFA-s group (p = 0.015) while other differences were not statistically significant. Omega–3 PUFAs supplementation appears not to be effective as an add-on treatment in inpatient adolescent girls with anorexia nervosa. Conclusions. The results should be analysed with caution due to small sample size and heterogeneity in TAU. As the TAU turned out to be highly effective, additional therapeutic effect of PUFA might not be visible. Nevertheless, that does not explain the tendency for better improvement in the placebo group.


2013 ◽  
Author(s):  
Natalie Shepherd ◽  
Jager Cassandre De ◽  
Abe Kasonga ◽  
Sumari Marais ◽  
Yuko Tousen ◽  
...  

2017 ◽  
Vol 81 (1) ◽  
pp. 64-73
Author(s):  
L.S. Ovcharenko ◽  
◽  
T.V. Slutskaya ◽  
A.A. Vertegel ◽  
T.G. Andrienko ◽  
...  

2017 ◽  
Vol 0 (0) ◽  
pp. 0
Author(s):  
A. Ruiz-González ◽  
S. Debruyne ◽  
J. Jeyanathan ◽  
L. Vandaele ◽  
S. De Campeneere ◽  
...  

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