scholarly journals Evaluation of the Effect of Synbiotic in Piglets’ Diet on the Nutritional Quality of Pork

2021 ◽  
Vol 24 (2) ◽  
pp. 67-75
Author(s):  
Mihaela Saracila ◽  
Arabela Elena Untea ◽  
Tatiana Dumitra Panaite

Abstract The purpose of the study was to increase the nutritional quality of pork, and to investigate the effect of the synbiotic on the oxidative stability of lipid. A 4 weeks experiment was performed on 8 weaned piglets (age 47 days, TOPIGS), divided into 2 groups (C, E). The control group (C) received a conventional diet, while the experimental group (E) included a diet supplemented with organic Zn and 10 g/kg synbiotic mixture. The productive parameters were evaluated. After slaughtered, muscle (tenderloin, shoulder, loin, ham and belly) and organs samples (liver, spleen and kidney) were collected. The muscle and organs samples were analysed regarding the proximate chemical analysis (dry matter, crude protein, crude fat, and ash). The antioxidant capacity and thiobarbituric acid reactive substances (TBARS) were performed on shoulder and ham samples at first day of the trial, 4 and 7 days after refrigeration. The crude fat determined in the loin samples, recorded a significant increase in the E group compared to the C group. The ash was higher in the shoulder samples from C group than in E group. At 7 days of refrigeration, the MDA concentration was significantly lower in the shoulder and ham samples from E group than those from C group. The conclusion was that the diet supplemented with organic Zn and 10 g/kg synbiotic mixture contributed to the delay of the lipid oxidation process of the shoulder and ham samples during the refrigeration period.

1991 ◽  
Vol 116 (2) ◽  
pp. 303-307 ◽  
Author(s):  
N. Girdhar ◽  
D. Lall ◽  
N. N. Pathak

SUMMARYIn an experiment conducted in the sheds of the Animal Nutrition Division of the Indian Veterinary Research Institute in 1988/89, eight adult Black Bengal goats were divided into two groups of four animals each. Animals in the control group were offered a conventional diet (concentrate and available roughage as per National Research Council standards) and those in the experimental group were fed exclusively on fresh leucaena foliage (young and newly developed leaves and shoots) for 300 days. Dry matter intake (DMI) and body weight of animals in the experimental group decreased in the first 6 weeks; daily DMI/lOOkg body weight was 306 ± 0·34kg in the control group and 2·40 ± 0·18 kg in the experimental group.There were significant differences in the apparent digestibilities of crude protein and nitrogen-free extractives; contents of digestible crude protein (DCP) and total digestible nutrients were 5·2 and 20·3%, respectively, in the controls and 65·6 and 59·1 %, respectively, in the experimental group. DCP intake was significantly higher in the experimental group as a result of high protein content in foliage but it was not well utilized.In the control and experimental groups, respectively, daily mean retention of nitrogen was 2·01±0·14 and 1·54±0·12 g/day, of calcium 1·60±0·08 and 2·92±1·69 g/day, and of phosphorus 1·12±0·25 and 0·24±0·07 g/day, the phosphorus balance being significantly lower in the experimental group. Blood calcium and serum glutamate oxaloacetate transaminase/serum glutamate pyruvate transaminase concentrations were statistically similar in both groups but the concentration of inorganic P was significantly lower in the blood of animals fed leucaena.


2021 ◽  
Vol 37 ◽  
pp. 00105
Author(s):  
Tatiana Maslova ◽  
Tatiana Kulakova

The production of ecologically clean fish products is in demand in the food market. As a result of the research, the nutritional quality and chemical composition of the muscle tissue of the Nile tilapia (Oreochromis niloticus L.) were evaluated using the pro-biotic additive Enzimsporin. A valuable quality of Nile tilapia meat is its high protein content. In the muscle tissue, the maximum amount of protein was 80.4%, in the yearlings of the 1st experimental group, which is 7.51% (P ≥ 0.99) higher than in the control group. Yearlings of the 2nd experimental group outperformed their peers from the control group by 4.8% (P ≥ 0.95). Its amount in fry of Nile tilapia varied from 72.27–72.73% in the experimental groups to 74.71% in the control group. The fat content in fry varied from 9.55% in the control to 12.19% in the fish of the 2nd experimental group. The amount of lipids was the highest in the control variant of Nile tilapia yearlings (11.48%), which is 6.48% more than in the 1st experimental group and by 4.48% more than that in the 2nd experimental group. The lipid-protein coefficient (0.06-0.09) of the experimental groups characterizes the meat as less tender, but high in protein, possessing lipotropic properties that protect the liver from fatty infiltration. The study of nutritional value and functional and technological properties shows that tilapia meat can be attributed to highly saturated food raw materials and used to obtain dietary products.


2021 ◽  
Vol 102 (4) ◽  
pp. 494-500
Author(s):  
A Yu Zharikov ◽  
O N Mazko ◽  
O G Makarova ◽  
I P Bobrov ◽  
A S Kalnitsky ◽  
...  

Aim. To study the effect of the Leu-Ile-Lys (leucine-isoleucine-lysine) tripeptide on the course of experimental urate nephrolithiasis. Methods. The experiment was carried out on 23 male Wistar rats weighing 200220 grams that were divided into a control (n=8, modeling of urate nephrolithiasis) and an experimental (n=15, modeling of urate nephrolithiasis + administration of Leu-Ile-Lys tripeptide) groups. The tripeptide was administered intragastrically through a tube at a dose of 11.5 mg/kg. Daily urine was collected on a weekly basis, and the activity of lactate dehydrogenase and gamma-glutamyl transpeptidase was determined. After three weeks of the experiment, the animals were euthanized, and kidneys were removed to determine the parameters of free radical oxidation [concentration of thiobarbituric acid reactive substances (TARS), total pro-oxidant and total antioxidant activity, the activities of catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GPX)] and conduct a morphological study in which the number and area of calculi and the condition of the renal tissues were determined. Statistical data processing was performed using the Statistica 12.0 software. We used the MannWhitney U test, the Wilcoxon signed rank test. The results are presented as median with the 25th and 75th percentiles. The differences were considered significant at p 0.05. Results. In the kidneys of the rats of the experimental group, the number of deposits decreased twofold, as compared with the control group (1.60.2 and 3.20.4, respectively, p=0.001). Lactate dehydrogenase activity in the urine of rats increased from 0.10 (0.06; 0.21) units/mg of creatinine per day initially to 0.75 (0.44; 1.07) units/mg creatinine per day on day 21 (p=0.012) in the control group, and from 0.10 (0.06; 0.12) units/mg creatinine per day to 0.45 (0.34; 0.71) units/mg creatinine per day on 21st day (p=0.003) in the experimental group. The concentration of thiobarbituric acid reactive substances in the experimental group was 1.2 times lower than that of the control group: 4.2 (3.9; 4.6) mol and 5.1 (4.7; 5.5) mol, respectively (p 0.001). In addition, in the kidneys of the rats of the experimental group, the total antioxidant activity was 1.3 times higher than in control: 70.4 (65.4; 74.1)% and 53.8 (33.3; 62.2)% respectively (p 0.001). Superoxide dismutase activity in the experimental group was 1.5 times higher than in the control group: 12.4 (11.0; 13.2)% against 8.1 (6.4; 13.1)% (p=0.016). Catalase activity in the experimental group was 1.2 times higher than in the control group: 31.1 (26.4; 36.1)% against 25.1 (20.3; 27.1)% (p=0.005). Conclusion. The Leu-Ile-Lys tripeptide has a litholytic effect, manifested in a statistically significant decrease in the activity of oxidative stress markers (p 0,001) and a twofold decrease in the average amount of uric acid kidney stones (p 0,001).


2015 ◽  
Vol 84 (2) ◽  
pp. 119-124 ◽  
Author(s):  
Peter Supuka ◽  
Slavomír Marcinčák ◽  
Peter Popelka ◽  
Vladimír Petrovič ◽  
Ladislav Molnár ◽  
...  

The aim of our study was to determine the effects of supplementation of agrimony extract (Agrimonia eupatoria L.) and a combination of agrimony with sage extract (Salvia officinalis L.) to water during the fattening period of broiler chickens on selected biochemical and antioxidant indicators in blood, and on the nutritional composition and oxidative stability of meat. A total of 117 Cobb 500 chicks were randomly divided on the day of hatching into three groups (n = 39 in each) and fattened for 42 days. All groups were fed the same diets. In experimental group A water was supplemented with agrimony extract (0.2%). In experimental group AS water was supplemented with a combination of agrimony (0.1%) and sage (0.1%) extracts. Group C was control without supplementation. The total cholesterol, low density lipoproteins and malondialdehyde in serum were decreased (P < 0.05), dry matter and fat content in meat were increased (P < 0.05) in group A. The activity of superoxide dismutase in blood and the amount of thiobarbituric acid reactive substances in thigh meat on days 1 and 8 of storage under chilling conditions were lower (P < 0.05) in both experimental groups compared to control. Our results indicate that supplementation of agrimony and sage extract to water can beneficially influence the antioxidant status as well as oxidative stability of thigh meat and thus improve meat quality. This is a first similar study comparing addition of plant extracts to water in broiler nutrition.


2010 ◽  
Vol 80 (1) ◽  
pp. 65-73 ◽  
Author(s):  
Pei-Min Chao ◽  
Wan-Hsuan Chen ◽  
Chun-Huei Liao ◽  
Huey-Mei Shaw

Conjugated linoleic acid (CLA) is a collective term for the positional and geometric isomers of a conjugated diene of linoleic acid (C18:2, n-6). The aims of the present study were to evaluate whether levels of hepatic α-tocopherol, α-tocopherol transfer protein (α-TTP), and antioxidant enzymes in mice were affected by a CLA-supplemented diet. C57BL/6 J mice were divided into the CLA and control groups, which were fed, respectively, a 5 % fat diet with or without 1 g/100 g of CLA (1:1 mixture of cis-9, trans-11 and trans-10, cis-12) for four weeks. α-Tocopherol levels in plasma and liver were significantly higher in the CLA group than in the control group. Liver α-TTP levels were also significantly increased in the CLA group, the α-TTP/β-actin ratio being 2.5-fold higher than that in control mice (p<0.01). Thiobarbituric acid-reactive substances were significantly decreased in the CLA group (p<0.01). There were no significant differences between the two groups in levels of three antioxidant enzymes (superoxide dismutase, glutathione peroxidase, and catalase). The accumulation of liver α-tocopherol seen with the CLA diet can be attributed to the antioxidant potential of CLA and the ability of α-TTP induction. The lack of changes in antioxidant enzyme protein levels and the reduced lipid peroxidation in the liver of CLA mice are due to α-tocopherol accumulation.


2019 ◽  
Author(s):  
Nur Tsalits Fahman Mughni

Teaching materials by integrating local culture makes easier for students to understand the subject matter in the learning process. The aims of the study is to measure the effectiveness of teaching materials based on local wisdom of agriculture in Binjai in improving the students problem solving abilities. The research method was a quasi experimental which use non equivalent control group in the pretest posttest design. The sample of study were students of Senior High School grade X in Binjai that consisted of experiment group which used teaching materials based on local wisdom of agriculture in Binjai and control group that used student handbooks. Teaching materials are tested by material experts and technology experts to ensure the quality of teaching materials. Data collection was conducted through test. The results showed that the teaching materials based on local wisdom of agriculture in Binjai effective in improving students problem solving abilities in the experimental group students based on the results of N gain value was 0.67 which has medium criteria. It means teaching materials based on agricultural local wisdom of agriculture in Binjai can be used as one of the teaching materials in learning activities.


Author(s):  
S. Nikolaev ◽  
L. Andreenko

In modern poultry farming the most urgent tasks are to search for and test new environmentally safe feed and economically justifi ed additives that stimulate productivity, positively aff ect the health of poultry, and consequently increase the livability of livestock and other important zootechnical traits. In order to maintain physiologically normal processes of life, metabolism and increase the level of productivity of poultry it needs mineral components and their chelated compounds. The purpose of this work was to increase the egg productivity of poultry by using the silicon-containing poly additive Nabicat in feeding young hens and laying hens. The researches have been carried out on the poultry cross Highsex Brown under the environments in CJSC “Poultry Farm “Volzhskaya” in the Sredneakhtubinsky area in the Volgograd region. In this paper, The optimal dose of the introduction of the silicon-containing poly additive Nabicat in the diets of young and laying hens of the cross Highsex Brown has been scientifi cally justifi ed and the biological value of using an organic form of silicon has been determined. The positive infl uence of the optimal dose of poly additive on growth, consumption, and digestibility, nutrient metabolism in the poultry body, as well as egg productivity and quality of the resulting egg has been revealed. Thus, the average egg productivity per 1 hen in the control group during the experiment period was 321,3 pcs., and in the 1st, 2nd and 3rd experimental groups it was 322,6 pcs., 325,8 and 325,7 pcs., which was higher than in the control group by 0,40 %, 1,40 and 1,37 %, respectively. The average egg weight in the 1st experimental group exceeded the control by 0,43 g or 0,68 %, in the 2nd experimental group by 1,16 g or 1,84 %, in the 3rd experimental group by 0,81 g or 1,28 %. The economic eff ectiveness of using the organic silicon additive in the composition of Nabicat poly additive in the feeding of laying hens has been proved. The economic eff ect due to the use of diff erent doses of the introduction of silicon-containing poly additive Nabicat in compound feed for laying hens of the 1st experimental group was 141,66 rubles, the 2nd experimental group 962,76 rubles, and the 3rd experimental group 821,89 rubles.


2020 ◽  
Vol 16 (5) ◽  
pp. 743-748
Author(s):  
Ana R.S. de Oliveira ◽  
Kyria J.C. Cruz ◽  
Jennifer B.S. Morais ◽  
Juliana S. Severo ◽  
Jéssica B. Beserra ◽  
...  

Background: The role of minerals in preventing the generation of oxidative stress in obese individuals has been evaluated. Magnesium is an antioxidant nutrient and a cofactor of enzymes involved in the cell membrane stabilization, attenuating the effects of oxidative stress. Objective: To evaluate the association between magnesium and concentrations of thiobarbituric acid reactive substances (TBARS) in patients with obesity and eutrophic women. Methods: A cross-sectional study was conducted with 73 women, divided into two groups: case group (patients with obesity, n=27) and control group (eutrophic women, n=46). Measurements of body mass index and waist circumference were performed. Dietary magnesium intake was assessed by the three-day food record using the NutWin software. Urinary magnesium concentration was measured by atomic absorption spectrophotometry method. Plasma concentrations of thiobarbituric acid reactive substances (TBARS) were also determined. Results: Mean values of dietary magnesium intake were 161.59 ± 60.04 and 158.73 ± 31.96 for patients with obesity and control group, respectively, with no significant difference between the groups studied (p >0.05). The value of urinary excretion of magnesium was lower than the reference values in both groups, with no significant difference between the groups studied (p >0.05). The plasma concentration of thiobarbituric acid reactive substances was significantly higher in patients with obesity compared to the control group (p <0.001). There was no correlation between levels of magnesium biomarkers and the concentration of TBARS (p >0.05). Conclusion: Patients with obesity showed a reduced dietary magnesium intake which seems to induce hypomagnesuria as a compensatory mechanism. The marker of oxidative stress evaluated in this study was not influenced by magnesium.


2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Somayeh Makaremnia ◽  
Marieh Dehghan Manshadi ◽  
Zahra Khademian

Abstract Background Thalassemia have a negative impact on the patients' psychological health and sleep quality. This study aimed to determine the effects of a positive thinking training program on hope and sleep quality of patients with thalassemia major. Methods This randomized clinical trial was conducted on 78 patients with thalassemia major including 36 males (46.2%) and 42 females (53.8%) with a mean age of 25.56 ± 29.6 in Iran. Subjects were randomly assigned into experimental and control groups. Experimental group received 16 h training based on positive thinking materials published by Martin Seligman. Control group received only usual programs. Data were collected at baseline, as well as immediately and one month after the intervention, using Snyder’s Hope Scale and the Pittsburgh Sleep Quality Index. Data analysis was performed using SPSS Software 18.0; statistical tests included the independent T-test, the Chi-square, Mann Whitney, and Friedman test. Significance level was set at 0.05 in this study. Results The experimental group had a significantly higher mean hope score compared to the control group immediately (45.38 ± 7.82 vs. 35.32 ± 5.54, P < 0.001) and one month following intervention (44.67 ± 3.47 vs. 35 ± .54, P < 0.001). Moreover, the mean sleep quality scores of the experimental group was significantly greater than that for control group immediately (5.35 ± 2.02 vs. 7 ± 2.4, P = 0.004) and one month after the intervention (4.23 ± 2.2 vs.7.02 ± 3.03, P < 0.001). Conclusion Since our training program on positive thinking improved hope and quality of sleep in patients with thalassemia major, we recommend the use of such courses as an important step toward promotion of hope and sleep quality among these patients. Trial registration The name of the registry: Iranian Registry of Clinical Trials. Trial Registration Number: IRCT2017010431774N1. URL of the trial registry record: https://en.irct.ir/trial/24923. Registration Date: 07/03/2017.


Foods ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1374
Author(s):  
Guotian Wang ◽  
Yunpeng Liu ◽  
Huimin Yong ◽  
Shuai Zong ◽  
Changhai Jin ◽  
...  

Pork is perishable due to oxidation and microbial spoilage. Edible coating based on biopolymers and phenolic compounds is an effective way to preserve the quality of pork. In this study, ferulic acid-grafted-CS (ferulic acid-g-CS) with strong antioxidant and antimicrobial activities was synthesized through a carbodiimide-mediated coupling reaction. The obtained ferulic acid-g-CS was used as an edible coating material for fresh pork. The effect of ferulic acid-g-CS coating on the quality of pork during storage was investigated at 4 °C for 8 days. As compared to the uncoated pork, pork coated with CS and ferulic acid-g-CS showed lower total viable counts, total volatile basic nitrogen values, pH values, thiobarbituric acid reactive substances, and drip losses. Besides, pork coated with CS and ferulic acid-g-CS presented more compact microstructures than the uncoated pork at the eighth day. Sensory evaluation assay showed pork coated with CS and ferulic acid-g-CS had better color, odor, and over acceptance in comparison with the uncoated pork. Ferulic acid-g-CS coating, due to its relatively higher antioxidant and antimicrobial activities compared to CS coating, had a better performance in refrigerated pork preservation. Ferulic acid-g-CS coating effectively extended the shelf life of refrigerated pork to 7 days. This study revealed ferulic acid-g-CS coating was a promising technology for refrigerated pork preservation.


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