scholarly journals Effects of Dried Olive Pulp Dietary Supplementation on Quality Characteristics and Antioxidant Capacity of Pig Meat

Foods ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 81 ◽  
Author(s):  
Anna Tsala ◽  
Vasilios Mpekelis ◽  
Giannis Karvelis ◽  
Panagiotis Tsikakis ◽  
Michael Goliomytis ◽  
...  
Keyword(s):  
Control Diet ◽  
Dietary Supplementation ◽  
Quality Parameters ◽  
Pork Meat ◽  
Positive Effects ◽  
Diet Formulation ◽  
Olive Pulp ◽  
Pig Meat ◽  
Meat Samples ◽  
By Products

Olive pulp belongs to agro-industrial by-products, and its addition into livestock diets generally result in neutral or positive effects on performance. However, the data concerning the effects of olive by-products on pork meat characteristics are scarce. The aim of this preliminary study was therefore to examine the effects of dried olive pulp (DOP) dietary supplementation on quality parameters and oxidative stability of pig meat. Twenty finishing pigs were allocated to two groups: C that was provided with a control diet, and DOP that was fed with an isonitrogenous and isoenergetic diet supplemented with dried olive pulp at the level of 50 g/kg or 5%. As indicated, cold carcass weight, pH, lightness, redness, cooking loss, and tenderness were not influenced by DOP inclusion. Only meat yellowness (a*) was significantly decreased in DOP meat samples. Moreover, meat oxidation values tended to decrease in the DOP group after one day, but no further differences were observed after four, six, and eight days of refrigerated storage. It can be concluded that DOP dietary supplementation could be recommended as a feasible approach, especially in the Mediterranean region to reduce diet formulation costs, while no significant side effects on pork meat quality are observed.

scholarly journals Use of Mediterranean By-Products to Produce Entire Male Large White Pig: Meat and Fat Quality

Animals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3128
Author(s):  
Macarena Egea ◽  
Irene Peñaranda ◽  
María Dolores Garrido ◽  
María Belén Linares ◽  
Cristian Jesus Sánchez ◽  
...  
Keyword(s):  
Body Weight ◽  
Control Diet ◽  
Large White ◽  
Pork Production ◽  
Fat Quality ◽  
Live Body Weight ◽  
Sensory Analyses ◽  
Olive Pulp ◽  
Meat Samples ◽  
By Products

A total of 70 male growing non-castrated pigs (Large White), with a 23.07 ± 2.87 kg average body weight (BW), were randomly allocated to three treatments in a 103 day trial: a CONTROL diet and two experimental diets, ALLIUM (5 g/kg of Allium spp. extract) and OLIVE (100 g/kg of olive pulp). Animals were slaughtered at 115 kg live body weight. Meat and fat quality were analyzed. Animals fed ALLIUM and OLIVE had higher water holding capacity (WHC) than those fed the control diet. No significant differences were observed between groups for cooking loss, drip losses and color CIELab. No antioxidant effect was observed on an oxygen radical absorbance capacity (ORAC) test. Animals fed OLIVE presented a more unsaturated fatty acid profile than CONTROL and ALLIUM. Meat from ALLIUM group and OLIVE showed her values of brightness and meat odor than CONTROL. Mean scores of sensory analyses (color, odor, flavor and juiciness) of cooked samples were similar for the three treatments, with the meat samples from the ALLIUM and OLIVE treatments being less hard. Consumers did not reflect a preference for any of the treatments. Both by-products could be used for pork production.

scholarly journals Effect of Dietary Supplementation with Diatomaceous Earth on Egg Quality Traits in Hens Raised on Deep Litter

2020 ◽  
Vol 2 (6) ◽  
Author(s):  
Robert Alex Isabirye ◽  
Savino Biryomumaisho ◽  
James Acai-Okwee ◽  
Samuel Okello ◽  
George William Nasinyama
Keyword(s):  
Specific Gravity ◽  
Diatomaceous Earth ◽  
Egg Quality ◽  
Control Diet ◽  
Dietary Supplementation ◽  
Quality Parameters ◽  
Quality Traits ◽  
Weight Percentage ◽  
Calcium Phosphorus ◽  
Haugh Unit

The study was conducted to investigate the effect of dietary diatomaceous earth (DE) on egg quality traits in deep litter hens. A total of 280 Lohmann Brown pullets were at 20 weeks of age divided into 4 groups. Three groups were fed on one of the three experimental diets supplemented with 2%, 3% or 4% DE, while the fourth group was fed on a control diet without DE supplementation. Each group had seven replicates of 10 birds. One egg was collected randomly per replicate (for a total of 7 eggs per group), weighed and determined for: yolk weight, albumen weight, eggshell weight, eggshell thickness, specific gravity, albumen height, yolk height, yolk colour and Haugh unit. Findings showed that DE supplementation resulted into significant (p<0.05) increase in eggshell weight and yolk height. Dietary supplementation with DE in the current study was, however, not effective on other egg quality parameters such as on eggshell weight percentage, egg specific gravity, yolk colour and Haugh unit. However, results of the study also showed that DE supplementation improved significantly (p<0.05) egg quality especially by improving viscosity as flocks grew older as compared to younger flocks. Further research should focus on the effect of dietary DE on eggshell and bone strength of layer birds. Research should also explore the interactions among the minerals found in DE (e.g. calcium, phosphorus and magnesium) and how these interactions affect egg quality in laying hens.

scholarly journals Effects of probiotic dietary supplementation on diarrhoea patterns, faecal microbiota and performance of early weaned calves

2010 ◽  
Vol 55 (No. 10) ◽  
pp. 494-503 ◽  
Author(s):  
J. Jatkauskas ◽  
V. Vrotniakiene
Keyword(s):  
Weight Gain ◽  
Enterococcus Faecium ◽  
Control Diet ◽  
Dietary Supplementation ◽  
Daily Weight Gain ◽  
Control Group ◽  
Average Weight ◽  
Probiotic Supplementation ◽  
Positive Effects ◽  
Probiotic Product

Twenty Lithuanian Black-and-White calves (10 bulls, 10 heifers) were used to evaluate the effects of the supplemental probiotic product, Enterococcus faecium M74 (2.4 g/day/calve), added to fresh milk and skimmed milk in a 56 day-study. The probiotic was administered by dietary supplementation to first group of calves and their respective pens (probiotic group), whereas the second group (control group) received no probiotic supplementation. The results of this trial indicate positive effects of the probiotic product Enterococcus faecium M74. The actual percentage of calves with diarrhoea was reduced from 50 % to 20% among the calves fed the pre-and probiotic diet. Probiotic supplementation reduced the faecal count of clostridia and enterococci. The calves fed Enterococcus faecium M74 weighed more at 20, 40 and 62 days of age by 4.9%, by 9.7% (P &lt; 0.05) and by 9.4% (P &lt; 0.01), respectively, than the control calves. The calves fed Enterococcus faecium M74 had increased daily weight gains compared with the calves not fed a probiotic product. The average weight gain and the daily weight gain of the probiotic-supplemented calves were by 7.8 kg (P &lt; 0.01) and by 0.14 kg higher (P &lt; 0.01) compared with the control calves. The calves given the Enterococcus faecium M74 also had forage and total DM intakes that were numerically higher than those fed the control diet, without any additive. During the 56 days experimental period, the average feed conversion rate was improved by 12.9% in the probiotic-treated group.

Effects of sexual condition and ractopamine supplementation on the proteomic profile of pork meat

2021 ◽  
pp. 1-9
Author(s):  
S. R. de Oliveira ◽  
C. T. Moncau ◽  
B. Silva-Vignato ◽  
M. D. Poleti ◽  
K. M. R. Duarte ◽  
...  
Keyword(s):  
Meat Quality ◽  
Dietary Supplementation ◽  
Meat Tenderness ◽  
Pork Meat ◽  
Proteomic Profile ◽  
One Dimensional ◽  
Sds Page ◽  
Two Factors ◽  
Meat Samples ◽  
Water Holding

Abstract Pork is one of the most consumed meats worldwide, yet, pork quality remains an issue for the industry, mainly because of flavour, colour and water holding capacity instabilities. Castration techniques combined with dietary supplementation with ractopamine hydrochloride (RAC) seem to be a tangible solution to deal with these issues. There is a lack of knowledge of how these techniques will impact the proteomic profile and, consequently, the meat quality. The main goal of this work was to study the proteomic profile of non-aged pork meat under different sexual conditions and RAC dietary supplementation, and how the combination of these two factors impacts meat quality attributes. Forty-eight animals were distributed in six treatments, three sexual conditions (females; surgically castrated males; immune castrated males) and two diets (with RAC inclusion or without). For proteomic analysis, a sample of the Longissimus dorsi muscle was collected 24 h after slaughter and analysed using one-dimensional SDS/PAGE. The ultimate pH and colour (L*, a*, b*) were measured in the carcasses after 24 h, then meat samples were collected to measure drip, cooking and thawing losses, as well as the shear force. The interaction between gender and diet affected the ultimate pH and the L* parameter. Meat tenderness was only influenced by diet. Twenty-seven protein bands were revealed by SDS/PAGE, six of them with the protein abundance affected by diet. In conclusion, the inclusion of dietary RAC caused differences in the pork meat proteome, and more studies are necessary to fully explore the proteins involved in these changes.

scholarly journals Dietary Supplementation of Increasing Levels of DLMethionine and L-Lysine in Hypoproteic Diets for Laying Hens Improves Productivity and Egg Quality

2015 ◽  
Vol 12 (1) ◽  
pp. 7 ◽  
Author(s):  
Yordan Martínez-Aguilar ◽  
Román Rodríguez-Bertot ◽  
Cesar Betancur-Hurtado ◽  
Dairon Más-Toro ◽  
Carlos Olmo-González ◽  
...  
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Control Diet ◽  
Dietary Supplementation ◽  
Essential Amino Acids ◽  
Quality Parameters ◽  
Amino Acid Supplementation ◽  
Peak Period ◽  
Randomized Design ◽  
Mass Conversion

<p>To evaluate the effect of dietary supplementation of DL-methionine and L-lysine in hypoprotein diets on productivity and egg quality, a total of 240 White Leghorn laying hens (Hybrid L-33) of 26 weeks during laying peak period were placed for 49 days, according to completely randomized design with four treatments and 10 repetitions. Dietary treatments consisted of a control diet (no amino acid supplementation) (T0) and supplementation of 0.03% DL-Met and 0.04% L-Lys (T1); 0.06% DL-Met and 0.08% L-Lys (T2) and 0.09% DL-Met and 0.12% L-Lys (T3). At 26 and 33 weeks of age, 30 eggs per treatment were collected to determine internal and external egg quality parameters.</p><p>The experiment diets did not affect the viability and feed intake. Supplementation of essential amino acids, especially the T3 improved egg weight (54.30 to 58.30 g), laying rate (76.89 to 85.45%) and mass conversion (2.52 to 2.11 kg/kg) (P&lt;0.05). At 33 week, the albumin height (7.21 to 8.23 mm), Haugh units (86.70 to 91.15) (P&lt;0.05) and shell surface (67.10 to 69.20 cm2) increased by the effect of supplementation of DL-Met and L-Lys. The results allow recommending the dietary supplementation of 0.09% DL-Met and 0.12% L-Lys in hypoprotein diets to improve productivity and egg quality in laying hens.</p>

Effect of dietary supplementation with unprocessed and ethanol-extracted apple pomaces on caecal fermentation, antioxidant and blood biomarkers in rats

2011 ◽  
Vol 107 (8) ◽  
pp. 1138-1146 ◽  
Author(s):  
Jerzy Juśkiewicz ◽  
Ewa Żary-Sikorska ◽  
Zenon Zduńczyk ◽  
Bogusław Król ◽  
Julia Jarosławska ◽  
...  
Keyword(s):  
Control Diet ◽  
Dietary Supplementation ◽  
Thiobarbituric Acid ◽  
Ammonia Concentration ◽  
Serum Glucose ◽  
Apple Pomace ◽  
Antioxidative Status ◽  
Dietary Polyphenols ◽  
Positive Effects ◽  
Caecal Fermentation

The present 4-week study on growing Wistar rats was aimed at assessing the potential advantages of dietary supplementation with apple pomace containing both fibre and polyphenols, which enables nutritional exploitation of the physiological traits of both compounds. A total of twenty-four rats, assigned to the control (C), group fed with a diet supplemented with 14 % of processed apple pomace (A) and group fed with a diet supplemented with 15 % unprocessed apple pomace (AP) groups, were fed the following iso-fibrous diets: control, ethanol-extracted and unprocessed apple pomaces (low and high level of dietary polyphenols, i.e. 0·002 and 0·018 %, respectively). To measure the animal response, parameters describing the caecal fermentation, antioxidative status and lipoprotein profile of rats were assessed. Both dietary apple pomaces were found to significantly (P ≤ 0·05) decrease caecal pH and ammonia concentration, microbial β-glucuronidase activity as well as to increase caecal SCFA concentration in comparison to the control diet. The unprocessed pomace did not suppress caecal fermentation. Unlike the extracted one, the dietary apple pomace rich in polyphenols significantly (P ≤ 0·05v. C group) increased erythrocyte superoxide dismutase activity and serum antioxidant capacity of lipid-soluble substances and significantly (P ≤ 0·05v. C group) decreased amounts of thiobarbituric acid-reactive substances in liver tissue. Moreover, the 4-week administration of the AP diet to rats evoked a significant decrease in serum glucose concentration (P ≤ 0·05v. C and A groups). In conclusion, the results demonstrated that the polyphenol-rich fibre complexes from apple pomace exerted positive effects on gastrointestinal physiology and antioxidant status of rats.

scholarly journals Whole Blood Transcriptome Profiling Reveals Positive Effects of Olive Leaves-Supplemented Diet on Cholesterol in Goats

Animals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1150
Author(s):  
Andrea Ianni ◽  
Francesca Bennato ◽  
Camillo Martino ◽  
Martina Colapietro ◽  
Giuseppe Martino
Keyword(s):  
Whole Blood ◽  
Strong Association ◽  
Dietary Supplementation ◽  
Olive Leaves ◽  
Potential Health ◽  
Positive Effects ◽  
Lactating Goats ◽  
Animal Metabolism ◽  
By Products ◽  
Blood Transcriptome

Agro-industrial by-products represent an important source of compounds credited with high biotechnological potential. In the last decade, considerable interest has developed toward the use of these matrices as dietary supplements in the zootechnical field, paying particular attention to the qualitative aspects associated with animal products. However, less is known about the effect of these matrices on gene expression and thus on animal metabolism. Therefore, the aim of this study was to analyze the whole blood transcriptome of lactating goats fed a dietary supplementation with 10% olive leaves (OL), one of the main by-products deriving from the olive oil chain supply. By applying a false discovery rate (FDR) < 0.05 and a Log2 Fold change (Log2Fc) lower than −0.5 or higher than +0.5, it was possible to identify the differential regulation of gene coding for the apolipoprotein B (apoB) mRNA editing enzyme catalytic subunit 2 (APOBEC2), which showed downregulation in goats that received the dietary supplementation. An evaluation of both blood and milk cholesterol was performed, taking into account the strong association between plasma apoB and low-density lipoprotein (LDL). Results showed significantly lower concentrations of circulating cholesterol and cholesterol released into the milk through the mammary gland, demonstrating positive effects of OL feeding on animal welfare and potential health benefits for consumers.

scholarly journals PSVI-24 Immunological Effects of a Purified 1,3/1,6 β-glucan Supplementation in Retorted Canine Diets

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 313-313
Author(s):  
Zac Traughber ◽  
Fei He ◽  
Maria R C de Godoy
Keyword(s):  
Mononuclear Cells ◽  
Control Diet ◽  
Fecal Microbiota ◽  
Significant Treatment ◽  
Peripheral Blood Mononuclear ◽  
Immune Parameters ◽  
Randomized Design ◽  
Diet Formulation ◽  
Respective Treatment ◽  
Branched Chain

Abstract Yeast cell wall products are common functional ingredients capable of “priming” the immune system, specifically in reference to vaccine efficacy. Twenty-four adult, female Beagles were used in a completely randomized design. Three retorted diets were used: control diet (CON), CON plus β-glucan top-dressed daily upon time of feeding (C+B), and CON plus retorted β-glucan included in diet formulation (BG). Following a 7 d adaptation to CON, dogs were fed their respective treatment diets for 42 d and were challenged with an oral Bordetella bronchiseptica vaccine on d 14 with blood collections on d 0, 21, 28, and 42. The objectives of the present study were 1) to evaluate the effects of dietary inclusion of a yeast β-1,3/1,6 glucan (150 ppm) on apparent total tract digestibility (ATTD) of macronutrients, fecal microbiota, and peripheral blood mononuclear cells (PBMC; T-cells, B-cells, and monocytes) of adult dogs and, 2) to test the effects of retorting on the efficacy of these β-glucans. All diets were well-accepted by all dogs. ATTD of both dry matter and crude protein were greater (P &lt; 0.05) for BG than CON and with greater (P &lt; 0.05) energy digestibility for BG than both B+G and CON. Additionally, fecal short-chain and branched-chain fatty acids, ammonia, indole and phenol concentrations did not differ among treatments. No significant treatment by time interactions among treatment groups were observed for any analyzed PBMC. These data suggest that a 150 ppm inclusion of this yeast-derived β-glucan had no detrimental effects on ATTD, fecal characteristics and metabolites, nor any analyzed PBMC; however, due to the absence of differences in immune parameters among treatments, the effect of retorting on the efficacy of this product cannot confidently be assessed with these findings. Higher doses of yeast-derived β-glucan might be needed to elicit an immunological modulation in healthy adult dogs.

scholarly journals Effect of dietary supplementation of seaweed (Ulva lactuca) and Azolla on growth performance, haematological and serum biochemical parameters of Aseel chicken

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Vijayalingam Thavasi Alagan ◽  
Rajesh Nakulan Vatsala ◽  
Ilavarasan Sagadevan ◽  
Vairamuthu Subbiah ◽  
Venkataramanan Ragothaman
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Growth Performance ◽  
Body Weight Gain ◽  
Control Diet ◽  
Dietary Supplementation ◽  
Well Being ◽  
Ulva Lactuca ◽  
Feed Conversion ◽  
Serum Biochemical

Abstract Background An effort was made to assess the effectiveness of dietary supplementation of Ulva lactuca (U. lactuca), a seaweed and Azolla individually and in combination on different physiological parameters of Aseel chicken. A total of 40 Aseel chicks of 8 weeks old were allocated into four groups, C1 (control), T1 (Azolla alone), T2 (seaweed alone) and T3 (seaweed plus Azolla). Aseel chicks in C1 were fed with formulated grower feed alone, birds in T1 had control diet with 5% Azolla, birds in T2 had control diet with 3% U. lactuca and birds in T3 had control diet admixtured with 5% of Azolla and 3% of U. lactuca. Parameters were recorded for a continuous period of 2 months in 15 days interval. Results The growth performance was found to be significant (P ≤ 0.05) during 30 days of feed trials and highly significant (P ≤ 0.01) during 45 and 60 days of treatment. Birds in T3 had a higher body weight gain, shank length and feed conversion efficiency followed with T1 and T2 compared to C1. PCV, RBC, WBC and heterophil counts were not influenced (P ≥ 0.05) by dietary treatments. Uric acid, creatinine, AST, glucose, triglycerides and magnesium levels revealed a high significant (P ≤ 0.01) variation, and cholesterol level showed significant (P ≤ 0.05) changes during 30th and 60th day of feed trials between the control and treatment groups. Total protein, globulin, phosphorus and electrolytes like Na, K and Cl levels were not significant (P ≥ 0.05) during 30th day and were highly significant (P ≤ 0.01) during the 60th day of the trial. Conclusions It could be noted that inclusion of U. lactuca and Azolla as feed supplement in grower chicken had a better body weight gain when given in combination (U. lactuca and Azolla) rather than supplemented with the sole entity. Based on the haematological and serum biochemical analysis, the supplementation of U. lactuca and Azolla at the levels included in this trial did not pose any threat to the physiological well-being of Aseel chicken.

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