Alireza Chegeni; Behrouz yarahmadi; Mohammad Shahvardi; Mohsen Mohamadisaei; Mirhasan Biranvand; alireza aghashahi; Hassan Fazaeli; amin kazemizadeh
Volume 25, Issue 1 , April 2023, , Pages 59-69
Abstract
The aim of the present study was to evaluate the effect of fodder beet on performance, carcass traits and blood parameters of fattening male lambs. 32 fattening male lambs with an initial weight of 28.05 ± 0.25 kg by using a completely randomized block design with four treatments and four blocks ...
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The aim of the present study was to evaluate the effect of fodder beet on performance, carcass traits and blood parameters of fattening male lambs. 32 fattening male lambs with an initial weight of 28.05 ± 0.25 kg by using a completely randomized block design with four treatments and four blocks for 84 days were fed with experimental diets including control (zero), 10, 20 and 30% fodder beet with the ratio 60% of the concentrate and 40% of the fodder as total mixed ration twice a day. During the experiment period, there was no significant difference in the weight of the lambs among the control group and the groups in which different levels of fodder beet were used in their diets. There was no significant difference in average daily gain among all groups except for the lambs fed with 20% fodder beet diet. In the group that received 30% fodder beet, the feed intake (DM/d) was the lowest compared to other groups (P<0.05). No significant difference in the feed conversion ratio among the experimental groups was observed. There was no difference in slaughter weight, empty-body weight, hot and cold carcass weight, carcass traits and carcass dressing percentage of lambs among different groups (P>0.05). The experimental treatments had no effect on the biochemical characteristics of lambs blood, but fodder beet intake increased blood hemoglobin (P<0.05). Based on the results, fodder beet up to 30% could be used in fattening lamb diets without negative effect on performance, carcass characteristics and blood parameters.
Navid Ghavipanje; Seyyed Ahmad Hosseini; alireza aghashahi; Mojtaba Afshin
Volume 24, Issue 3 , October 2022, , Pages 329-339
Abstract
The aim of the present study was to determine the nutritive value of Alhaji camelorum plant using nylon bag and gas production techniques which compared with alfalfa hay. Fodder samples were hand harvested and its chemical and phenolic composition was determined according to standard laboratory methods. ...
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The aim of the present study was to determine the nutritive value of Alhaji camelorum plant using nylon bag and gas production techniques which compared with alfalfa hay. Fodder samples were hand harvested and its chemical and phenolic composition was determined according to standard laboratory methods. The methods of gas production, nylon bags and three-step enzymatic digestion were used to determine the nutritive value of the samples. The amount of organic matter, crude protein and Ca of Alhaji camelorum was lower than alfalfa hay (P<0.05). Wheras, the neutral detergent fiber, acid detergent fiber, lignin, ash and phosphorus content of Alhaji camelorum were significantly higher than alfalfa hay (P<0.05). The amount of total phenolic compounds, total tannin, condensed and hydrolyzable tannin of Alhaji camelorum was also higher than alfalfa hay (P<0.05). There was no significant difference between the fast degradable, slow degradable and degradablity rates of Alhaji camelorum and alfalfa hay. However, the effective degradability of Alhaji camelorum was lower than alfalfa hay (P<0.05). Gas production rate (c) of Alhaji camelorum and alfalfa was similar, however, its gas production potential (b) was lower than alfalfa hay (P<0.05). Organic matter digestibility, metabolizable energy, and net energy for lactation were also estimated to be lower in Alhaji camelorum than alfalfa hay (P<0.05). According to the results of the present research, Alhaji camelorum plant with appropriate nutritional caractristics and digestibility parameters along with its lower production cost compare to alfalfa hay, can be replaced with a part of the forage of camel diet.
Danial mohsenisoltani; alireza aghashahi; habib aghdam shahryar; yahya ebrahimnejad; sayed abdoullah hosseini
Volume 23, Issue 3 , September 2021, , Pages 409-420
Abstract
This study was conducted to investigate the effects of toxin binders and prebiotics on growth performance, intestinal microbial population, stress and antioxidant indexes of broiler chicks fed diets contaminated with aflatoxin B1. In this study, 600 1-d-old mixed broiler chicks (Ross 308) were investigated ...
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This study was conducted to investigate the effects of toxin binders and prebiotics on growth performance, intestinal microbial population, stress and antioxidant indexes of broiler chicks fed diets contaminated with aflatoxin B1. In this study, 600 1-d-old mixed broiler chicks (Ross 308) were investigated in 10 treatments with 6 replications and 10 chicks per replication. Experimental treatments included: Negative controls un-supplemented and supplemented with ASRI1 and ASRI2 toxin binders and prebiotic and positive groups un-supplemented and supplemented with ASRI1 and ASRI2 toxin binders and prebiotic, ASRI1 +prebiotic and ASRI2 +prebiotic. Growth performance, stress indexes of heterophile, lymphocyte, bacterial population and stress indexes of super oxide dismutase (SOD), glutathione peroxidase (GPx) and malondialdehyde (MDA) were investigated. Dietary inclusion of aflatoxin into diet increased heterophile, heterophile:lymphocyte ratio and decreased lymphocyte (P<0.05), but toxin binders and prebiotic alleviated effects of aflatoxin on heterophile and lymphpocyte. Thepopulation of E. coli and lactobacilli were significantly higher and lower in positive control compared to negative control (P < 0.05). The results also showed that the serum concentrations of antioxidant enzymes were significantly lower in negative control compared to positive control (P < 0.05). In sum, aflatoxin showed negative effects on growth performance, intestinal microbial populations, stress and antioxidant indexes but toxin binders and prebiotic decreased its negative effects and inclusion of ASRI1(3kg/ton) was better than other toxin binders.
alireza aghashahi; hadi hosseini; sayed abdoullah hosseini; AMIRREZA SAFAEI; Ali Reza Yousefi; Jafar Ramazankhany
Volume 21, Issue 3 , September 2019, , Pages 329-337
Abstract
This study was aimed to investigate the effect of adding dried dairy wastes to the starter diet on growth performance in Holstein dairy calves. A total of 28 female newborn Holstein dairy calves were randomly allocated to four groups (n=7/group) and after two weeks of habituation to experimental conditions ...
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This study was aimed to investigate the effect of adding dried dairy wastes to the starter diet on growth performance in Holstein dairy calves. A total of 28 female newborn Holstein dairy calves were randomly allocated to four groups (n=7/group) and after two weeks of habituation to experimental conditions and diet, in a completely randomized design, individually fed starter diets containing 0 (control), 10, 20, or 30% dried dairy waste up to eight weeks of age. Feed intake, weight gain, and feed efficiency (gained weight/consumed feed) were measured weekly, during the experimental period. Results showed that body weight, weight gain, feed intake, and feed efficiency were not affected by the treatments. Interactive effect of treatments by week showed that the highest weight gain was for calves fed by the diet containing 10% dairy waste or control group at first week. However, the highest gain was recorded for those that received 30% dairy waste at week five of the experiment (P<0.05). In conclusion, the results of the present study revealed that the inclusion of dried dairy products up to 30% of calves’ starter diet had no adverse effect on performance, and therefore can be used as an affordable and valuable nutritional by-product of the dairy industry in the nutrition of calves.
Meisam Tamizi Jooneghani; Shokoufe Ghazanfari; Alireza Aghashahi; Seyed Davood Sharifi; Seyyed Abdollah Hosseini
Volume 18, Issue 3 , October 2016, , Pages 501-512
Abstract
This study was carried out to investigate the effects of Humulus lupulus essential oils as an alternative to antibiotic and antioxidant on productive performance, lipids stability of meat and ileum microbial population in broiler chickens during days 1 to 42 of age. A total of 625 day-old Arian broiler ...
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This study was carried out to investigate the effects of Humulus lupulus essential oils as an alternative to antibiotic and antioxidant on productive performance, lipids stability of meat and ileum microbial population in broiler chickens during days 1 to 42 of age. A total of 625 day-old Arian broiler chicks were used in a completely randomized design with five treatments (200 and 400 mg/kg Humulus lupulusessential oils, 100 mg/kg antibiotic avilamycin, 150 mg/kg protexin probiotic and control) and five replicates of 25 birds each. Broilers that were fed dietary Humulus lupulus oil at level of 400 mg/kg and antibiotic revealed higher feed intake than broilers fed dietary Humulus lupulusoil at level of 200 mg/kg (P<0.05). Dietary Humulus lupulus oil at level of 200 mg/kg and probiotic had best production index compared with Humulus lupulus oil at level of 400 mg/kg treatment (P<0.05). The Humulus lupulus oils (200 and 400 mg/kg) treatments showed lower thigh muscles malondialdehyde concentration compared with antibiotic and probiotic treatments as well as control group (P<0.01). Broilers were fed dietary 400 mg/kg Humulus lupulus oil had highest lactobacillus count of the ileum compared with other treatments (P<0.05). Dietary Humulus lupulus oil at level of 200 mg/kg improved broiler productive performance, however improvement of ileum microbial population and meat quality were observed when 400 mg/kg dietary Humulus lupulus oil was applied.