Physiological effects of crowding in rainbow trout, Oncorhynchus mykiss, selected for low and high stress responsiveness

Trenzado, Cristina E.; Morales, Amalia E.; Higuera, Manuel de la

doi:10.1016/j.aquaculture.2006.03.045

Cited by 106 publications

(68 citation statements)

References 73 publications

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“…The similar growth rates of the fish on both the high-and low-fat diets might also have been caused by the increased oxidation level induced by the high-fat diets (Pickering et al, 1991;Montero et al, 1999;Trenzado et al, 2006). Higher levels of TBARS on the high-fat diets confirm the idea that there is a direct relationship between fat oxidation in tissue and fat content of the diets which, in turn, may have a negative impact on rainbow trout growth.…”

Section: Discussionsupporting

confidence: 69%

The effects of organic selenium on performance and oxidative level in rainbow trout (<i>Oncorhynchus mykiss</i>, Walbaum, 1792) fed a high-fat diet

Amirkolaie¹,

Karimzadeh²,

Kenari³

2014

J. Anim. Feed Sci.

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Section: Discussionsupporting

confidence: 69%

The effects of organic selenium on performance and oxidative level in rainbow trout (<i>Oncorhynchus mykiss</i>, Walbaum, 1792) fed a high-fat diet

Amirkolaie¹,

Karimzadeh²,

Kenari³

2014

J. Anim. Feed Sci.

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“…One of the best examples of such implications comes from studies using selected lines of rainbow trout, Oncorhynchus mykiss, differing in stress responsiveness. Low cortisol responders (typical proactive individuals) were shown to exhibit higher growth rates as compared with high cortisol responders (Pottinger 2006;Trenzado et al 2006). These authors attributed the growth disparity between the two lines to differences in competitiveness/aggressiveness.…”

Section: The Diversity Of Behavioural Responses and Coping Stylesmentioning

confidence: 92%

“…High-stress responders were shown to be more negatively affected by crowding than the low-stress responders (Trenzado et al 2006). In addition, divergent coping styles have been shown to exhibit Fish Physiol Biochem (2012) 38:17-41 19 different susceptibility to diseases and inflammatory challenges (Mackenzie et al 2009).…”

Section: The Diversity Of Behavioural Responses and Coping Stylesmentioning

confidence: 99%

Behavioural indicators of welfare in farmed fish

Martins¹,

Galhardo²,

Noble³

et al. 2011

Current Views on Fish Welfare

120

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Behaviour represents a reaction to the environment as fish perceive it and is therefore a key element of fish welfare. This review summarises the main findings on how behavioural changes have been used to assess welfare in farmed fish, using both functional and feeling-based approaches. Changes in foraging behaviour, ventilatory activity, aggression, individual and group swimming behaviour, stereotypic and abnormal behaviour have been linked with acute and chronic stressors in aquaculture and can therefore be regarded as likely indicators of poor welfare. On the contrary, measurements of exploratory behaviour, feed anticipatory activity and rewardrelated operant behaviour are beginning to be considered as indicators of positive emotions and welfare in

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“…Limited information is available regarding the body composition of A. marmorata grown in different stocking densities. Previous studies have investigated the effects of stocking density on the body composition of African catfish, vundu catfish, and rainbow trout (Trenzado, Morales, & Higuera, 2006;Toko, Fiogbe, Koukpode, & Kestemont. 2007).…”

Section: Discussionmentioning

confidence: 99%

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Tan¹,

Sun²,

Tan³

et al. 2018

Turk. J. Fish. Aquat. Sci.

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We conducted a 71-day experiment to investigate the effects of stocking density in a recirculating aquaculture system (RAS) on the growth performance, body composition, digestive activity, and blood biochemical parameters of the marbled eel Anguilla marmorata. We stocked marbled eel in 1.0 m 3 tanks at stocking densities of 12, 20, and 28 kg/m 3 , which were designated the low-density (LD), medium-density (MD) and high-density (HD) groups. The fish weighed 169.72 ± 2.75 g at the baseline level. Results revealed that the fish in the LD and MD groups had a higher ash content than fish in the HD group. The crude lipid content was significantly lower in the MD and HD groups than in the LD group. The protease activities in the stomach and intestine did not differ among the three groups. The total protein and aspartate aminotransferase levels were higher in the LD group than in the MD group. The alanine aminotransferase level was significantly lower in the LD group. These results indicate that a greater increase resulted in stress and significantly affected the growth of the fish. The optimum stocking density of A. marmorata can be achieved at 20.0 kg/m 3 in a RAS.

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Physiological effects of crowding in rainbow trout, Oncorhynchus mykiss, selected for low and high stress responsiveness

Cited by 106 publications

References 73 publications

The effects of organic selenium on performance and oxidative level in rainbow trout (<i>Oncorhynchus mykiss</i>, Walbaum, 1792) fed a high-fat diet

The effects of organic selenium on performance and oxidative level in rainbow trout (<i>Oncorhynchus mykiss</i>, Walbaum, 1792) fed a high-fat diet

Behavioural indicators of welfare in farmed fish

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