An evaluation of 30 years of selective breeding in the Arctic charr (Salvelinus alpinus L.) and its implications for feeding management

Assessing the potential of improving growth and survival to the eyed stage in selectively bred Arctic charr (Salvelinus alpinus)

“…Arctic charr ( Salvelinus alpinus ) farming in Sweden is a promising industry, despite the relatively small production volume (1,310 tn; SCB, 2017). A national breeding programme has been running for approximately 40 years resulting in an improved strain capable of reaching market size (>600 g) one year earlier compared to wild stocks (Eriksson et al., 2010) with an estimated genetic gain of 10%–11% per generation (Carlberg et al., 2018). A closed breeding nucleus originating from lake Hornavan in Sweden has been maintained since the beginning of the programme during the 1980s.…”

Controlling preharvest maturity in farmed Arctic char: A review from the Canadian perspective

“…Preharvest sexual maturation can be addressed in numerous ways, including selective breeding for a late maturing phenotype, the production of single‐sex (all‐female) populations, or through the creation of reproductively sterile populations (Benfey, ; Carlberg et al, ; Piferrer, ; Taranger et al, ). While the use of all‐female populations may reduce or even eliminate preharvest maturation as a concern for commercial fish production, if a significant proportion of females undergo early maturation, then the use of sterile populations may be more suitable.…”

“…Over the last two decades, several genetic improvement programs for Arctic char have been implemented in Nordic countries such as Sweden, Norway, Iceland, and Canada, with a focus on selection for growth and delayed sexual maturation (Carlberg, ; Carlberg, Nilsson, Brännäs, & Alanärä, ; Eriksson, Alanärä, Nilsson, & Brännäs, ; Nilsson, Brännäs, & Eriksson, ). These breeding programs, coupled with advances in technology, have undeniably contributed to the global increase in Arctic char production from 631 m.t.…”

Effects of Dietary Silica Nanoparticle on Growth Performance, Protein Digestibility, Hematology, Digestive Morphology, and Muscle Composition of Nile Tilapia, Oreochromis Niloticus

“…Besides the quality, digestibility of nutrients also impacts water quality, disease outbreak (Heal et al, 2021), total yield, and, consequently, the business profitability (Guo et al, 2020;Hassaan et al, 2020a;Kong et al, 2020;Nguyen et al, 2020a). While the sustainable use of feed is a challenge to the aquaculture industry, many strategies have been implemented, including the replacement of fishmeal (Perez-Velazquez et al, 2019;Li et al, 2020), the use of byproducts (Irm et al, 2020), selective breeding (Carlberg et al, 2018), minimizing nutrient waste (de Verdal et al, 2018), and, most recently, the use of feed additives including probiotics (Haque et al, 2021b;Hasan et al, 2021a), and nanoparticles (NPs) (Abd El-Naby et al, 2019;Rathore et al, 2020).…”