Nutritional evaluation of seal by-products as an alternative protein source for use in monogastric animals
Seal by-products (grey seal with the bone in, grey seal with the bone removed, and harp seal) were subjected to five different processing methods: high (100 °C) and low (45 °C) temperature oven-drying, freeze-drying (FD), silage by acid or natural fermentation. Growth performance of diets containing...
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ftbioone:10.1139/cjas-2019-0055 2024-06-02T08:07:48+00:00 Nutritional evaluation of seal by-products as an alternative protein source for use in monogastric animals Derek M. Anderson Gina Priest Stephanie A. Collins Janice L. MacIsaac Derek M. Anderson Gina Priest Stephanie A. Collins Janice L. MacIsaac world 2019-09-17 text/HTML https://doi.org/10.1139/cjas-2019-0055 en eng Canadian Science Publishing doi:10.1139/cjas-2019-0055 All rights reserved. https://doi.org/10.1139/cjas-2019-0055 Text 2019 ftbioone https://doi.org/10.1139/cjas-2019-0055 2024-05-07T01:00:50Z Seal by-products (grey seal with the bone in, grey seal with the bone removed, and harp seal) were subjected to five different processing methods: high (100 °C) and low (45 °C) temperature oven-drying, freeze-drying (FD), silage by acid or natural fermentation. Growth performance of diets containing these seal by-products was evaluated in rats as a monogastric model species. With the exception of naturally fermented grey seal without bone, weight gains for rats fed the boneless grey seal products were highest of the seal products (24.65–30.04 g rat-1) and statistically similar to those of rats fed casein (32.15 g rat-1). An in vivo crude protein (CP) digestibility study was conducted using 12 adult white rats in metabolic cages that allowed separate collection of urine and feces. The 16% CP diets contained chromic oxide as an inert fecal marker at 0.5%. Total fecal and urine production, as well as feed and water intake, were recorded daily within the three experimental periods. Digestibility of CP was significantly higher for the naturally fermented grey seal without bone silage (94.0%) than casein (89.0%), whereas the other seal products were statistically similar (91.7%–92.7%). The CP content of FD grey seal was as high as 91.7% (FD). Seal by-products have the potential to be used as alternative high-protein feedstuffs in monogastric diets. Text Harp Seal BioOne Online Journals Canadian Journal of Animal Science 100 1 77 84 |
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Seal by-products (grey seal with the bone in, grey seal with the bone removed, and harp seal) were subjected to five different processing methods: high (100 °C) and low (45 °C) temperature oven-drying, freeze-drying (FD), silage by acid or natural fermentation. Growth performance of diets containing these seal by-products was evaluated in rats as a monogastric model species. With the exception of naturally fermented grey seal without bone, weight gains for rats fed the boneless grey seal products were highest of the seal products (24.65–30.04 g rat-1) and statistically similar to those of rats fed casein (32.15 g rat-1). An in vivo crude protein (CP) digestibility study was conducted using 12 adult white rats in metabolic cages that allowed separate collection of urine and feces. The 16% CP diets contained chromic oxide as an inert fecal marker at 0.5%. Total fecal and urine production, as well as feed and water intake, were recorded daily within the three experimental periods. Digestibility of CP was significantly higher for the naturally fermented grey seal without bone silage (94.0%) than casein (89.0%), whereas the other seal products were statistically similar (91.7%–92.7%). The CP content of FD grey seal was as high as 91.7% (FD). Seal by-products have the potential to be used as alternative high-protein feedstuffs in monogastric diets. |
author2 |
Derek M. Anderson Gina Priest Stephanie A. Collins Janice L. MacIsaac |
format |
Text |
author |
Derek M. Anderson Gina Priest Stephanie A. Collins Janice L. MacIsaac |
spellingShingle |
Derek M. Anderson Gina Priest Stephanie A. Collins Janice L. MacIsaac Nutritional evaluation of seal by-products as an alternative protein source for use in monogastric animals |
author_facet |
Derek M. Anderson Gina Priest Stephanie A. Collins Janice L. MacIsaac |
author_sort |
Derek M. Anderson |
title |
Nutritional evaluation of seal by-products as an alternative protein source for use in monogastric animals |
title_short |
Nutritional evaluation of seal by-products as an alternative protein source for use in monogastric animals |
title_full |
Nutritional evaluation of seal by-products as an alternative protein source for use in monogastric animals |
title_fullStr |
Nutritional evaluation of seal by-products as an alternative protein source for use in monogastric animals |
title_full_unstemmed |
Nutritional evaluation of seal by-products as an alternative protein source for use in monogastric animals |
title_sort |
nutritional evaluation of seal by-products as an alternative protein source for use in monogastric animals |
publisher |
Canadian Science Publishing |
publishDate |
2019 |
url |
https://doi.org/10.1139/cjas-2019-0055 |
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world |
genre |
Harp Seal |
genre_facet |
Harp Seal |
op_source |
https://doi.org/10.1139/cjas-2019-0055 |
op_relation |
doi:10.1139/cjas-2019-0055 |
op_rights |
All rights reserved. |
op_doi |
https://doi.org/10.1139/cjas-2019-0055 |
container_title |
Canadian Journal of Animal Science |
container_volume |
100 |
container_issue |
1 |
container_start_page |
77 |
op_container_end_page |
84 |
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1800752937052405760 |