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    • List of Articles محمد مهدی معینی

      • Open Access Article

        1 - Effect of Different Levels of Molasses Distillers Condensed Soluble on Broiler Chickens Performance, Carcass Traits and Intestinal Morphology of Broilers
        ط. امجدیان م.م. معینی ش. قاضی ش. ورکوهی
        An experiment was conducted to investigate the effect of molasses distillers condensed soluble (MDCS) on growth performance, carcass characteristics and intestinal morphology of broilers. A total of 400 one day-old, unsexed Ross 308 broiler chicks were randomly allotted More
        An experiment was conducted to investigate the effect of molasses distillers condensed soluble (MDCS) on growth performance, carcass characteristics and intestinal morphology of broilers. A total of 400 one day-old, unsexed Ross 308 broiler chicks were randomly allotted to 20 cages. The dietary MDCS levels incorporated 0% and 4% in the starter and 0%, 4% and 8% in grower diet, respectively. The average daily gain (ADG), average daily feed intake (ADFI) and feed conversion ratio (FCR) were obtained from 7 to 42 days of age. As a result of this study, the dietary inclusion of MDCS had no negative effects on productive performance of broilers or on the microbial population's enumeration, villus width, villus height, crypt depth and carcass traits. Thus it can be concluded that MDCS can be included in broiler dietary up to 8% without any adverse effect on broiler performance. Manuscript profile
      • Open Access Article

        2 - The Effect of Red Pepper (Capsicum annuum) and Marigold Flower (Tageteserectus) Powder on Egg Production, Egg Yolk Color and Some Blood Metabolites of Laying Hens
        M.M. Moeini S.H. Ghazi S. Sadeghi M. Malekizadeh
        An experiment was conducted to investigate the effects of using different levels of Red Pepper powder (RP) and Marigold flower powder (MF) on egg production, egg yolk color andsome blood metabolites in laying hens. Ninety, 103-weeks old laying hens were divided into 5 t More
        An experiment was conducted to investigate the effects of using different levels of Red Pepper powder (RP) and Marigold flower powder (MF) on egg production, egg yolk color andsome blood metabolites in laying hens. Ninety, 103-weeks old laying hens were divided into 5 treatments groups of 6 birds in each cage with 3 replicates in a completely randomized design. The birds were fed a corn-soybean meal based diet containing different concentrations of RP (1 and 3%) and MF (1 and 3%) along with a control / untreated group. During 9 weeks of experimental period egg production, egg quality and quantity parameters were recorded. The blood samples were taken at 14, 28 and 42 days of experiment. The white blood cell counts and some blood metabolites were measured. The egg yolk colors were measured using Fan Roche methods. There were no significant differences among treatments for egg quality traits but the yolk color changed in treated group compared with controls (P>0.01). The highest yolk color was obtained in 3% RP (with 13.33 Roche Fan score). Effect of RP and MF powder on total blood leukocyte counts was not different significantly in laying hen, but there was a significant effect of RP and MF powder on eosinophil count (P<0.05). There was a significant effect of RP and MF powder on triglyceride and total cholesterol (P<0.05). The RPand MF did not significantly affected the LDL, HDL, glucose, uric acid, Ca, P, ALT and AST enzymesin treated laying hens (P>0.05). Manuscript profile
      • Open Access Article

        3 - The Use of Crushed Caraway (Carum carvi) and Black Seed (Nigella sativa) Additives on Growth Performance, Antioxidant Status, Serum Components and Physiological Responses of Sanjabi Lambs
        س. کاکی م.م. معینی ف. هژبری ز. نیکوصفت
        The aim of the present study was to investigate the effect of caraway and black seed supplementation on the physiological responses, antioxidant, serum, and hematological parameters of Sanjabi lambs. 18 Sanjabi male lambs were randomly assigned to three dietary treatmen More
        The aim of the present study was to investigate the effect of caraway and black seed supplementation on the physiological responses, antioxidant, serum, and hematological parameters of Sanjabi lambs. 18 Sanjabi male lambs were randomly assigned to three dietary treatments: (i) basal diet (control); (ii) basal diet with added 30 grams black seed/kg dry matter (DM); and (iii) with added 30 grams caraway/kg DM. The lambs fed caraway diet had higher final body weight than that of the control (P<0.05). Lambs fed black seed diet had lower alanine aminotransferase and cholesterol concentrations than those of the controls (P<0.05). Lambs fed caraway diet had lower blood malondialdehyde compared with the control (P<0.05). In conclusion, caraway and black seed supplements could improve growth performance and antioxidant parameters in fattening lambs. Manuscript profile
      • Open Access Article

        4 - Efficacy of CIDR or FGA Sponges with hCG Treatments on the Conception Rate and Prolificacyin Lori Ewes Out of the Breeding Season
        M.M. Moeini F. Alipour M.R. Sanjabi
        Two experiments were performed to determine the effectiveness of different progestogens contained in intravaginal devices, different doses of eCG and subsequent hCG treatment on the reproductive performance of estrus-induced mature Lori ewes. In the first experiment, 88 More
        Two experiments were performed to determine the effectiveness of different progestogens contained in intravaginal devices, different doses of eCG and subsequent hCG treatment on the reproductive performance of estrus-induced mature Lori ewes. In the first experiment, 88 ewes were allocated into two groups, and were treated with either fluorogestone acetate (FGA) sponges or Controlled Internal Drug Release devices (CIDR).The sponges were withdrawn 13 days after insertion and then ewes were treated with either 350 IU or 500 IU of eCG by intramuscular injection. There was no significant difference among treatments in the percentage of ewes in estrus or the interval to the onset of estrus. However, the conception rate and prolificacy of ewes treated with 350 IU eCG, in both the FGA and CIDR groups, was higher than ewes treated with 500 IU of eCG. In the second experiment 384 ewes were randomly divided into three groups and after synchronization with FGA spongesand 350 IU of eCG, 128 ewes in the first group (T1) were injected 250 IU hCG when artificially inseminated, 128 ewes in the second group (T2) were injected 250 IU hCG 12 days after AI and the 128 ewes in the third group (C) acted as the control group. Estrous was determined by monitoring 35 teaser rams to calculate estrous rate. Prolificacy and conception rate were assessed and serum progesterone (P4) concentrations were measured on days 12, 14 and 16 days after AI. Prolificacy was increased in the T1 group compared with control group (P<0.05) and conception rates were higher in hCG treatments (P<0.05). The weight of single lambs on the day ofbirth increased with the hCG injection on days 0 and 12 (P<0.05). The P4 concentration was higher in the hCG-treated groups compared with the control ewes on day 16 (P<0.05). It is concluded that CIDR and FGA sponges were equally effective for estrous induction in anestrous Lori ewes and P4 concentrations increased with 200 IU hCG given at the time of AI or 12 days after AI which could improve reproductive performance. Manuscript profile
      • Open Access Article

        5 - The “Male Effect” Onestrous Synchronization and Reproductive Characteristics of Female Markhoz Goat during the Breeding Season
        م.م. معینی و. محمدی چپ‪دره م. سوری
        One hundred female Markhoz goats (42±5 kg) were used to investigate the ‘male effect’ on estrous synchronization and reproductive characteristics of female goat during the breeding season. This was carried out in three separate experiments. In the fir More
        One hundred female Markhoz goats (42±5 kg) were used to investigate the ‘male effect’ on estrous synchronization and reproductive characteristics of female goat during the breeding season. This was carried out in three separate experiments. In the first experiment, forty female goats were used in 4 groups with different distance from the male goats (i.e. source of pheromone secretion); A1 (1 meter), A2 (12.5 meters), A3 (25 meters) and A4 (50 meters). In the second experiment, thirty female goats were synchronized using CIDR in three groups in the presence or absence of male goats; B1 (the presence of male goat with females during synchronization), B2 (sudden introducing of male goat to females goat during the time of removal of CIDR) and B3 (no male goat during synchronization). In the third experiment, thirty female goats were used in 3 groups; C1 (male goat permanently was presented near to the females during the experiment), C2 (sudden introducing of male to females) and D or control group (no male before mating). The results showed the effect of male goat on estrous synchronization, causing reproductive cycles in early breeding season and increasing incidence of estrous (P<0.05). The male effect improved fertility and kidding rates (P<0.05). Male effect was more pronounced when the distance of unlike sexes decreased (P<0.01). Male effect was also more effective, with sudden introducing of male to female goat (P<0.01). The male effect was more efficient when compared with synchronized female by CIDR in onset of estrous (P<0.05), and increased serum estrogen concentration in the follicular phase (P<0.05). Manuscript profile