Effects of Dietary Paper Mulberry (Broussonetia Papyrifera) on Growth Performance and Muscle Quality of Grass Carp (Ctenopharyngodon idella)
| Autor: | Zehong Wei, Tao Tang, Jinhai Bai, Zhipeng Ao, Yi Hu, Shaojun Liu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
paper mulberry
Veterinary medicine growth myogenic regulatory factors Myostatin flesh quality MyoD Feed conversion ratio Article 03 medical and health sciences Animal science SF600-1100 Myocyte Myogenin 030304 developmental biology 0303 health sciences grass carp General Veterinary biology 0402 animal and dairy science Paper mulberry 04 agricultural and veterinary sciences Broussonetia biology.organism_classification 040201 dairy & animal science Grass carp QL1-991 biology.protein Animal Science and Zoology Zoology |
| Zdroj: | Animals Volume 11 Issue 6 Animals : an Open Access Journal from MDPI Animals, Vol 11, Iss 1655, p 1655 (2021) |
| ISSN: | 2076-2615 |
| DOI: | 10.3390/ani11061655 |
| Popis: | The present study investigated the effects of dietary paper mulberry (Broussonetia Papyrifera, BP) on growth performance, muscle quality and muscle growth-related mRNA expressions of grass carp. Fish (initial weight: 50.0 ± 0.5 g) were fed diets supplemented with 0% (control diet), 5%, 10%, 15% and 20% BP for 8 weeks. The results showed that increasing levels of paper mulberry linearly and quadratically decreased the special gain rate (SGR) and increased the feed conversion rate (FCR) of grass carp (p < 0.05). Significantly positive quadratic trends were found between paper mulberry levels and muscle crude fat or crude protein of grass carp (p < 0.05). In comparison to the control diet, the 10%BP and 15%BP groups had significantly decreased muscle crude fat and increased crude protein (p < 0.05). The levels of paper mulberry resulted in a linear and quadratic increase in water loss of grass carp muscle (p < 0.05), and all groups with paper mulberry supplementation were significantly higher than the control group (p < 0.05). Significant positive linear and quadratic trends were found between the paper mulberry levels and muscle fiber diameter or density of grass carp (p < 0.05). In comparison to the control diet, the significant differences were found in the 15%BP and 20%BP groups (p < 0.05). The muscle adhesiveness and hardness linearly and quadratically increased with the increasing levels of paper mulberry (p < 0.05), and both of which increased significantly when the level of paper mulberry reached 10% (p < 0.05). In addition, the increase in paper mulberry linearly and quadratically improved the expressions of myoblast determination protein (MyoD), myogenin (MyoG), paired box protein 7 (Pax7) and myostatin 1 (MSTN1) (p < 0.05). When the supplementation of paper mulberry reached 15%, the expressions of all these mRNAs were significantly higher than those of the control group (p < 0.05). In summary, adding 5% paper mulberry did not affect the growth of grass carp. However, the supplementation of 10% paper mulberry could improve muscle quality through improving muscle hardness, reducing fat accumulation and muscle fiber diameter, at the cost of reducing growth performance. |
| Databáze: | OpenAIRE |
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