Mahmood Dashtizadeh; Mohsen Sari; Hassan Fazaeli
Volume 22, Issue 3 , September 2020, , Pages 365-377
Abstract
In order to study the effects of sunflower oil and Konar leaves addition on performance, meat quality and fatty acids profile, an experiment wasconducted using 32 Adani male goat kids, with 17.8 ± 2.2 kg initial BW in a completely randomized design with a 2×2 factorial arrangement for 75days. ...
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In order to study the effects of sunflower oil and Konar leaves addition on performance, meat quality and fatty acids profile, an experiment wasconducted using 32 Adani male goat kids, with 17.8 ± 2.2 kg initial BW in a completely randomized design with a 2×2 factorial arrangement for 75days. Goat kids were randomly assigned to one of four treatments: 1- control, 2- 20% Konar leaves, 3- 2.5 % sunflower oil and, 4- 2.5 % sunflower oil+ 20% Konar leaves. The results showed that treatments had no effect on feed intake and final body weight of goat kids. Oil inclusion in the diettended to increase daily weight gain (P=0.06) and tended to decrease feed conversion ratio (P=0.07). Dry matter, ash, and crude proteinconcentrations, color indices, malondialdehyde concentration and pH of longissimus dorsi (LD) muscle were not affected by treatments. Totalsaturated fatty acids (p < 0.05) and total N6 fatty acids (p < 0.01) of LD are affected by interaction of oil and Konar leaves supplementation. Inclusion ofkonar leaves in the diet increased the polyunsaturated fatty acids to saturated fatty acids ratio in LD muscle of goat kids (p < 0.05). The fat content ofLD muscle increased with the inclusion of oil to the diets (p < 0.01). The results of this study showed that using Konar leaves and sunflower oil in thediet of Adani goat kids can improve the nutritive value of their meat by reducing saturated fatty acids and increasing polyunsaturated fatty acids.
Morteza Chaji
Volume 18, Issue 4 , December 2016, , Pages 719-728
Abstract
This experiment was conducted to determine chemical composition, and fermentation and digestion characteristics of black mulberry leaves, or diets content 0, 25, 50, 75 and 100% of it, by whole rumen microorganisms or rumen fungi. Dry matter, crude protein, NDF, ADF, Ash and tannin of the black mulberry ...
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This experiment was conducted to determine chemical composition, and fermentation and digestion characteristics of black mulberry leaves, or diets content 0, 25, 50, 75 and 100% of it, by whole rumen microorganisms or rumen fungi. Dry matter, crude protein, NDF, ADF, Ash and tannin of the black mulberry leaves was 96.5, 19.30, 36.82, 15.90, 9.31 and 0.30%, respectively. Partitioning factor, truly organic matter degradability, microbial biomass and microbial biomass efficiency in the black mulberry leaves were more than alfalfa hay (P<0.05). The gas production was increased by increasing amount of the black mulberry leaves, so that diet contains 30% of the black mulberry leaves had the hiegest gas production (P<0.05). The organic matter digestibility, cell wall degradability, metabolizable energy and short chain fatty acids of experimental diets increased by increasing the amount of the black mulberry leaves in diet (P<0.05). Therefore, the replacement of the alfalfa hay with black mulberry leaves in diet, has no negative effect on rumen microorganisms, especially isolated rumen fungi which are the digester of fiber and harsh parts of plants, and due to the higher protein and lower fiber contents of the black mulberry leaves, may be replaced it instead of alfalfa hay in fattening lamb diets.
Sahere Gharibi; Mohammad Houshmand; Reza Naghiha
Volume 17, Issue 2 , October 2015, , Pages 403-413
Abstract
This study was conducted to investigate the influences of raw or acetic acid-treated oak acornon the performance and cecal flora of broiler chickens. A total of 340 one-day-old male and female Cobb 500 broiler chicks were used in a completely randomized design consisting of five treatments with four ...
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This study was conducted to investigate the influences of raw or acetic acid-treated oak acornon the performance and cecal flora of broiler chickens. A total of 340 one-day-old male and female Cobb 500 broiler chicks were used in a completely randomized design consisting of five treatments with four replicates and 17 chicks each. First group was fed with a corn-based diet (without oak acorn) as control, while the chicks of groups 2, 3, 4 and 5 were fed with diets containing 20 or 25 percent raw or treated oak acorn, respectively. The results indicated that treatment with acetic acid significantly reduced content of the all phenol components (total phenol, total tannin and condensed tannins). Dietary inclusion of raw oak acorn at the levels of 20 and 25 percent, significantly reduced broilers body weight gain (P<0.05). However, this reduction was not observed for treated groups. Feeding with raw or treated oak acorn resulted in higher feed conversion ratio compared with the control group (P<0.05). E. coli and lactic acid bacteria counts were not affected by dietary treatments at 21 or 42 day of the study. In conclusion, dietary inclusion of 20 and 25 percent raw or treated oak acorn resulted in a significant reduction in broilers performance and hence, it is not recommended.
F. Khosravi; M. H. Fathi Nasri
Volume 14, Issue 2 , January 2012, , Pages 51-61
Abstract
The fresh Pomegranate seed pulp (PSP, containing 47.5 percent dry matter) was ensiled within plastic buckets (three kg weight) for 70 days and then chemical composition, phenolic compounds concentration and DM ruminal degradability parameters and ruminal, post-ruminal and total tract digestibility of ...
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The fresh Pomegranate seed pulp (PSP, containing 47.5 percent dry matter) was ensiled within plastic buckets (three kg weight) for 70 days and then chemical composition, phenolic compounds concentration and DM ruminal degradability parameters and ruminal, post-ruminal and total tract digestibility of DM were measured. The results showed that ensiling significantly decreased total phenolic compounds, total tannins, gallic acid, tannic acid, penicillin and punicalagin A content of PSP but condensed tannins, ellagic acid and punicalagin B content were not affected by preservation method. DM ruminal degradability parameters, rapidly and slowly potentially degradable fractions and effective degradability on passage rate of 0.02, 0.05 and 0.08 per h were not significantly affected by treatments but ensiling increased the ruminal and total tract digestibility of DM and decreased the DM degradability rate constant and DM post-ruminal digestibility. Based on the results of this study ensiling could improve the nutritional value of PSP.