• List of Articles Starvation

      • Open Access Article

        1 - The Study Of Starvation and Compensatory Growth on Growth and Survival Of Onchorhychus mykiss
        Majid Mohammad Nejad Shamoushaki Morteza Mazini Farshad Manochehri
        nroduction and Objective: Compensatory growth is a phase of rapid growth following feed restriction in such critical situations which it is observed in cold water and warm water fishes. Response to starvation and refeeding this includes eating more fish, feed efficiency More
        nroduction and Objective: Compensatory growth is a phase of rapid growth following feed restriction in such critical situations which it is observed in cold water and warm water fishes. Response to starvation and refeeding this includes eating more fish, feed efficiency and growth factors can be improved. Therefore, this study was designed to investigate the effect of starvation and compensatory growth on growth and survival of rainbow trout was conducted.Materials and Methods: This experiment was conducted for 8 weeks in four Groups and three replications: Group 1: 8 weeks full feeding, Group 2: One week starvation + a week feeding, Group 3: two weeks starvation + two weeks feeding, Group 4: three weeks starvation + three weeks of feeding. 240 fingerlings rainbow trout with an average initial weight 3.81 ± 0.46 g, and the average initial length of 5.4 ± 0.67 cm in 12 breeding tank with 20 fish per tank with a capacity of 50 liters completely randomized design and distribution of water for 8 weeks were maintained under the same conditions in terms of environmental conditions.Results: The results showed that there was a significant differences between groups in growth factors of rainbow troutfingerlings (P Conclusion: Results showed a reduction in starvation and compensatory growth of rainbow troutfingerlings has not been able to offset the slowdown. Manuscript profile
      • Open Access Article

        2 - Effect Of starvation on someblood serum factors inCyprinus carpio(Linnaeus, 1758)
        Roya Asareh Majid Mohammad Nejad Shamoushaki Hamid Faghani Langroodi
        Inroduction and Objective: Fishes might experience starvation in the process of catching and transportation and the prior events. These events of hunger can be effective on some factors of blood serum and survival.Materials and Methods: To understand the effects of star More
        Inroduction and Objective: Fishes might experience starvation in the process of catching and transportation and the prior events. These events of hunger can be effective on some factors of blood serum and survival.Materials and Methods: To understand the effects of starvation on some blood parameters of theCyprinus carpio blood serum, with the average weight of 3.243 0.132 gr, a study was initiated for 6 weeks, with 2 groups and 3 repeats. The study was carried on with feeding 10% of body weight (3 times a day) and complete hunger, in the temperature of  28 ± 2 C, pH: 7.8-8.2 and 6 ppm oxygen. To gather information about the effects of starvation on Cyprinus carpio's blood factors by every repeat, 5 to 7 fingerlings fish were accidentally chosen each week. The fish were anesthetized with 200 ppm of colve oil .The blood was sent to the lab for measuring the blood factors.Results: The research showed that starvation has notable effects on the level of all of the aforementioned blood factors, also the chance of survival. And thus, there's a disparity between the attendances (PConclusion: Finally, the results that came from this research shows that by protracting the starvation duration, the studied biochemical factors  of blood, and the survival chance will drop noticeably. Manuscript profile
      • Open Access Article

        3 - Effect of Starvation Intensity and Compensatory Growth Phenomenon on Carcass Characteristics and Meat Chemical Composition of Lambs of Lori Sheep Breeds
        Behrouz Yarahmadi Mohsen Mohamadi Saei Alireza Cheqeni
        This study was conducted to investigate the effect of the starvation intensity and period compensatory growth on the carcass characteristics and meat chemical composition of the lambs of Lori sheep breeds. Fifty-four male Lori lambs were selected. The experimental facto More
        This study was conducted to investigate the effect of the starvation intensity and period compensatory growth on the carcass characteristics and meat chemical composition of the lambs of Lori sheep breeds. Fifty-four male Lori lambs were selected. The experimental factors were for the starvation period at two levels (35 and 45 days) and the starvation intensity with three levels (ad libitum, 80%, and 60%) which was based on a factorial experiment with a completely randomized design (2×3) with three replications. At the end of the experiment, daily weight gain, final weight, feed conversion ratio, and feed intake were calculated. Furthermore, the carcass characteristics, the cost of production per kg of gain carcass and lean meat were calculated. The percentage of dry matter, ash, crude fat, and crude protein were determined for the meat chemical composition.  Results showed that there was a significant difference among average daily gain, dry matter intake, and feed conversion ratio the feed restriction period (p < 0.05). At the end of compensatory growth, restricted groups with 35 days of starvation gained more ADG than other treatments (p < 0.05). During the compensatory growth period, FCR in the feed restriction treatments decreased compared to the control treatment (p < 0.05). The results of carcass traits in the feed restriction period showed that the most carcass traits in the control treatments were higher than the restriction groups (p < 0.05). Meanwhile, the fat tail weight and percentage and total carcass fat were higher in the control treatment were higher than all restriction groups. In this case, the food restriction groups of 35 and 45 days of starvation had the highest lean meat during the period of restriction and compensatory growth. The study showed that the lambs under 60 percent feed restriction with 35 days of starvation were preferable due to higher ADG, better FCR, and more suitable carcass traits, as well as the higher percentage of lean meat than other treatments.   Manuscript profile