Abstract
In this study, the effects of different methods of feeding turkeys on the neuropeptide nesfatin-1 and the hormone irisin were evaluated. A total of 90 turkeys were distributed to three treatment groups, namely T1: conventional system, T2: 50% feed and pasture, and T3: pasture. There were 30 birds in each group with three random replications. The birds were fed for 18 weeks. At the end of the study, blood was collected from 10 birds of each group. Plasma nesfatin-1 and irisin levels were measured with an enzyme-linked immunoassay. The nesfatin-1 levels of male turkeys in T1, T2, and T3 were 0.76 ± 0.1 ng/m, 0.41 ± 0.1 ng/ml, and 1.24 ± 0.2 ng/ml, respectively. Nesfatin-1 levels in the female turkeys in T1, T2 and T3 were 0.53 ± 0.07 ng/ml, 1.18 ± 0.3 ng/ml, 1.32 ± 0.1 ng/ml, respectively. The irisin levels in the male turkeys in T1, T2, and T3 were 575.93 ± 42.5 pg/ml, 188.39 ± 1.8 pg/ml, and 607.54 ± 24.1 pg/ml, respectively. Irisin levels of the female turkeys in T1, T2 and T3 were 603.20 ± 42.2 pg/ml, 241.42 ± 18.4 pg/ml, and 399.29 ± 21.5 pg/ml, respectively. Because nesfatin-1 is involved in regulating food intake, food intake by turkeys might differ, depending on the management system. Different management systems might also alter irisin secreation because it can be induced by exercise.
Highlights
IntroductionSuppression of feed intake and the energy it supplies are important factors that can affect the nutrition, reproduction, growth, and other metabolic functions of living things negatively (Cameron et al, 1993; Steiner et al, 2003)
The effects of the feeding methods on nesfatin-1 levels were significant, but the pattern of the effects differed by gender (Figure 1)
The nesfatin-1 level of female turkeys that had been subjected to T3 was significantly higher than those that were subjected to T1
Summary
Suppression of feed intake and the energy it supplies are important factors that can affect the nutrition, reproduction, growth, and other metabolic functions of living things negatively (Cameron et al, 1993; Steiner et al, 2003). Because Turkey imports feed resources and pays in foreign exchange, efforts to find feed resources that are cheap and are not used directly in human nutrition have gained momentum (Blake, 1993). The lateral hypothalamus controls hunger, whereas the ventromedial hypothalamus controls satiation. These two areas work in collaboration and with other regions of the brain to maintain energy balance (Richard & Baraboi, 2004). The hypothalamus controls energy balance by evaluating the stimulating or suppressive signals received from the body systems (Havel, 2004; King, 2005). Of the 396 amino acids of NUCB2, the first 82 amino acids constitute nesfatin-1, amino acids 85-163 constitute nesfatin-2, and amino acids 166-396 constitute nesfatin-3 (Oh-I et al, 2006)
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
