Isfahan Agricultural Research Center

Eşfahān, Iran

Isfahan Agricultural Research Center

Eşfahān, Iran
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Toghyani M.,Islamic Azad University at Khorasgan | Gheisari A.,Isfahan Agricultural Research Center | Ghalamkari G.,Islamic Azad University at Khorasgan | Mohammadrezaei M.,Islamic Azad University at Khorasgan
Livestock Science | Year: 2010

This study was conducted to investigate the effect of dietary supplementation with black seed and peppermint on the performance, carcass traits, immune responses, serum biochemistry, hematological parameters and meat acceptability in broilers. A total number of 240 day-old male broilers (Ross 308) were randomly allocated to five treatments with four replicates. The dietary treatments consisted of the basal diet as control, 2 and 4 g/kg black seed, 4 and 8 g/kg peppermint added to the basal diet. Body weights of broilers were measured at 1, 14, 28 and 42 days, feed intake was measured for different periods and FCR was calculated accordingly. At 42 days two birds per replicate were slaughtered for determination of carcass and organ weights and also meat sensory evaluation. At 18 and 28 days blood samples (8 samples per treatment) were taken for measuring antibody titers and at 42 days for biochemical and hematological analysis. Supplementing 4 g/kg peppermint increased body weight of broilers at 28 days of age (P < 0.05), but final body weight at 42 days was not affected. Broilers fed 4 g/kg black seed significantly showed the most efficient FCR (0-42 days). Internal organ weights and carcass characteristics were not significantly influenced by treatments. Black seed supplementation also caused a marked (P < 0.05) increase in the weight of lymphoid organs at 42 days but other immune related parameters were not statistically different among treatments. Biochemical parameters including serum protein, albumin, triglyceride, LDL, HDL and total cholesterol, SGOT and SGPT enzymes concentrations were not statistically (P > 0.05) influenced. Black seed significantly increased RBC count, hemoglobin concentration and hematocrit percentage compared to control birds (P < 0.05). Sensory evaluation of thigh meat displayed no abnormal odor or flavor in meat induced by feed additives. © 2010 Elsevier B.V. All rights reserved.


Toghyani M.,Islamic Azad University at Khorasgan | Gheisari A.A.,Isfahan Agricultural Research Center | Khodami A.,Islamic Azad University at Khorasgan | Mohammadrezaei M.,Islamic Azad University at Khorasgan | Bahadoran R.,Islamic Azad University at Khorasgan
World Academy of Science, Engineering and Technology | Year: 2010

This experiment was conducted to investigate the effect of different levels of dietary chromium yeast (Cr-yeast) on thigh meat quality of broiler chicks reared under heat stress condition. Two hundred and forty Ross male chickens in heat stress condition (33±3°C) were allocated to five treatments in a completely randomized design. Treatments were supplemented with 0 (control), 200, 400, 800 and 1200 μg kg-1 Cr in the form of Cr yeast. Twelve chicks from each treatment were slaughtered at 42 d, to evaluate moisture, protein, lipid, pH and lipid oxidation of thigh meat. Protein, moisture, lipid and pH of thigh meat were not affected by supplemental Cr. Thigh meat lipid tended to decrease in broilers received 1200 μg kg-1. Storage time increased lipid oxidation of meat (P<0.01). Lipid oxidation of thigh muscle for two days of storage were affected by supplemental Cr and decreased (P<0.05). Results of this study showed that dietary Cr-yeast supplementation improved the thigh meat quality of broiler chicks in heat stress condition.


Toghyani M.,Islamic Azad University at Khorasgan | Zia M.A.,Islamic Azad University at Khorasgan | Tabeidian S.A.,Islamic Azad University at Khorasgan | Ghalamkari G.,Islamic Azad University at Khorasgan | Gheisari A.,Isfahan Agricultural Research Center
International Journal of Poultry Science | Year: 2015

The objective of this study was to assess fear responses of broiler chicks to vitamin C, different shackling and crating times in preslaughter. In this study, tonic immobility (TI) was used as an index of fear reactions. At 42 d of age, 80 male broiler chicks were randomly selected for 8 treatments in the experiment. The treatment included treated and untreated vitamin C for two shackling times (60 and 120 s) and subsequently two crating times (2 and 4 h). The equal numbers of birds were provided drinking water containing either 0 or 1000 ppm of L-ascorbic acid for 36 h. The TI was determined following the crating. Vitamin C and handling time resulted in a significant reduction in duration of TI in broilers drank treated water with vitamin C and for 60 s shackling times (p<0.05). Time of the crate had no significant effect on the duration of TI (p>0.05). Number of attempts to induce TI were not affected by vitamin C, shackling and crating time (p>0.05). It was concluded that the use of vitamin C in drinking water during 36 h preslaughter may offer a practical method for alleviating underlying fearfulness and enhancing poultry welfare. © Asian Network for Scientific Information, 2015.


Sadeghi A.,Islamic Azad University at Khorasgan | Toghyani M.,Islamic Azad University at Khorasgan | Gheisari A.,Isfahan Agricultural Research Center
Poultry Science | Year: 2015

Two experiments were conducted to investigate the effect of fibrous materials with one single diet or by choice feeding on performance, intestinal morphology, immunity, and fiber preference in broiler chicks. In experiment 1, 240-day-old chicks (Ross 308) were assigned to one of 4 treatments, comprising 5 replicates per treatment in a completely randomized design. Dietary treatments included: a basal diet (control) or 30 g/kg sugar beet pulp (SBP), 30 g/kg rice hull (RH), or 30 g/kg equal combination of them (SBP/RH) added to the basal diet. Results showed SBP and SBP/RH impaired daily weight gain (DWG) in the growing period compared with control (P < 0.05). Additionally, chickens that received SBP had deteriorated FCR across the entire rearing period (P < 0.05). In comparison to control and SBP, supplementing SBP/RH significantly increased antibody titer against Newcastle disease virus (NDV; P < 0.05) at 23 d of age. Furthermore, SBP reduced duodenal and ileal villus height compared with control at 21 d of age. In experiment 2, a total of 240 chicks were allotted to 4 experimental treatments of feeding: 1) control; or choice feeding between 2) control and SBP (C-SBP); 3) control and RH (C-RH); 4) control and SBP/RH (C- SBP/RH). Results indicated that chicks had a tendency to use separate sources of fiber. RH was consumed lower than C-SBP/RH and C-SBP in starter and growing periods, respectively (P < 0.05). Chickens choice fed RH and SBP/RH had greater daily feed intake than control across 14 to 28 d of age (P < 0.05). However, DWG reduced in all fiber fed birds (P < 0.05) and resulted in impaired FCR in broilers of the C-SBP group (P < 0.05). In addition, choice feeding of SBP/RH increased antibody titer against NDV as compared with control and SBP (P < 0.05). In conclusion, fiber inclusion in both experiments impaired growth performance but an equal combination of fiber improved immunity. In addition, broilers had a tendency to use separate sources of fiber. © 2015 Poultry Science Association Inc.


Emadinia A.,Islamic Azad University at Khorasgan | Toghyani M.,Islamic Azad University at Khorasgan | Gheisari A.,Isfahan Agricultural Research Center | Tabeidian S.A.,Islamic Azad University at Khorasgan | And 2 more authors.
Journal of Applied Animal Research | Year: 2014

This experiment was conducted to investigate the effect of wet feeding and enzyme supplementation on performance, carcass traits, and immune responses of broiler chickens. Total of 280-day-old Ross 308 broiler chicks were used in factorial arrangement (2×2) in a completely randomized design with 4 dietary treatments and 5 replicates of 14 chickens. Dietary treatments were included of two forms of wet (1.5 kg added water to 1150 g diet) and dry diet as well as either enzyme (0.35 g/kg) or no enzyme addition to the wheat-based diet. Performance of chickens was evaluated through measurement of body weights (BWs) during day 4-44 of age, feed intake (FI), and weight gain (WG) were measured at the same period, and feed conversion ratio (FCR) was calculated. In order to carcass measurements, two birds per pen were slaughtered at the end of rearing period. Antibody titer against Newcastle and influenza viruses and sheep red blood cells was determined to evaluate the immune responses. BW, WG, and FI of broilers insignificantly increased by wet feeding (P>0.05). Heart, liver, and gizzard relative weights were significantly influenced via feeding diet in wet form (P<0.05). Digestive tract parameters include of duodenum, jejunum, and ileum weights were markedly decreased by enzyme inclusion (P<0.05). None of the immune-related parameters were statistically different among treatments. As conclusion, the results of the present trial shows that wet feeding can affect performance, moreover enzyme inclusion might influence some digestive organs of broilers. © 2013 © 2013 Taylor & Francis.


PubMed | University of Mohaghegh, Lorestan University, Islamic Azad University at Khorasgan and Isfahan Agricultural Research Center
Type: Journal Article | Journal: Poultry science | Year: 2016

The current trial was designed to examine effects of sequential feeding of diets varying in energy and protein contents on performance, gut development, welfare indices, and immune responses of broiler chicks. A total of 240 one-day-old broiler chicks (Ross 308) were randomly allotted to 4 treatments with 5 replicates in a completely randomized design. Sequential feeding was evaluated in 48-h cycles during 8 to 28 d of age. Diets varied in energy (E+ = 3,210kcal/kg and E- = 2,790kcal/kg) and protein (P+ = 25.14% CP and P- = 16.76% CP) contents. The 4 feeding programs were: control (ME: 3,000kcal/kg, CP: 20.95%); P+/P- (P+ followed by P- containing 3,000kcal/kg energy); E-/E+ (E- followed by E+ containing 20.95% CP), and E-P+ / E+P- (E-P+ followed by E+P-). The experiment lasted 42 d and birds were fed by a standard finishing diet from d 28 to 42. Broilers fed on E-/E+ and E-P+/E+P- had lower daily feed intake than control ones during 8 to 28 d of age (P < 0.05), while daily weight gain and feed conversion ratio were not affected significantly. Footpad dermatitis was lower in birds sequentially fed E-/E+ and E-P+/E+P- at 35 d of age (P < 0.05). Sequential feeding of diets varying in either energy or protein or both increased duration of tonic immobility at d 39 of age (P < 0.05). Feeding with E-/E+ regime decreased jejunal crypt depth, while feeding P+/P- regime increased villus height and crypt depth in the duodenum and ileum (P < 0.05). However, no relationship was found between intestinal morphology and growth performance of broiler chickens. Antibody production against sheep red blood cells as well as Newcastle and influenza disease viruses was not affected by sequential feeding. In conclusion, digestive organs and intestinal morphology might be adjusted to energy and protein variations. Sequential feeding increased the fear level in chickens.


PubMed | Islamic Azad University at Khorasgan and Isfahan Agricultural Research Center
Type: Journal Article | Journal: Poultry science | Year: 2015

Two experiments were conducted to investigate the effect of fibrous materials with one single diet or by choice feeding on performance, intestinal morphology, immunity, and fiber preference in broiler chicks. In experiment 1, 240-day-old chicks (Ross 308) were assigned to one of 4 treatments, comprising 5 replicates per treatment in a completely randomized design. Dietary treatments included: a basal diet (control) or 30 g/kg sugar beet pulp (SBP), 30 g/kg rice hull (RH), or 30 g/kg equal combination of them (SBP/RH) added to the basal diet. Results showed SBP and SBP/RH impaired daily weight gain (DWG) in the growing period compared with control (P < 0.05). Additionally, chickens that received SBP had deteriorated FCR across the entire rearing period (P < 0.05). In comparison to control and SBP, supplementing SBP/RH significantly increased antibody titer against Newcastle disease virus (NDV; P < 0.05) at 23 d of age. Furthermore, SBP reduced duodenal and ileal villus height compared with control at 21 d of age. In experiment 2, a total of 240 chicks were allotted to 4 experimental treatments of feeding: 1) control; or choice feeding between 2) control and SBP (C-SBP); 3) control and RH (C-RH); 4) control and SBP/RH (C- SBP/RH). Results indicated that chicks had a tendency to use separate sources of fiber. RH was consumed lower than C-SBP/RH and C-SBP in starter and growing periods, respectively (P < 0.05). Chickens choice fed RH and SBP/RH had greater daily feed intake than control across 14 to 28 d of age (P < 0.05). However, DWG reduced in all fiber fed birds (P < 0.05) and resulted in impaired FCR in broilers of the C-SBP group (P < 0.05). In addition, choice feeding of SBP/RH increased antibody titer against NDV as compared with control and SBP (P < 0.05). In conclusion, fiber inclusion in both experiments impaired growth performance but an equal combination of fiber improved immunity. In addition, broilers had a tendency to use separate sources of fiber.

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