Effect of Feed Texture and Dimensions, on Feed Waste Type and Feeding Efficiency in Juvenile <i>Sagmariasus verreauxi</i>
The “messy” feeding behaviour of spiny lobsters remains an obstacle for formulated feed development. This study examined the relationship between feeding efficiency and feed waste by juvenile spiny lobster, <i>Sagmariasus verreauxi</i>, fed different formulated pellet diameters or length...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-11-01
|
| Series: | Fishes |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2410-3888/8/11/553 |
| _version_ | 1827639852142690304 |
|---|---|
| author | Katarzyna Kropielnicka-Kruk Quinn P. Fitzgibbon Mohamed B. Codabaccus Andrew J. Trotter Chris G. Carter Gregory G. Smith |
| author_facet | Katarzyna Kropielnicka-Kruk Quinn P. Fitzgibbon Mohamed B. Codabaccus Andrew J. Trotter Chris G. Carter Gregory G. Smith |
| author_sort | Katarzyna Kropielnicka-Kruk |
| collection | DOAJ |
| description | The “messy” feeding behaviour of spiny lobsters remains an obstacle for formulated feed development. This study examined the relationship between feeding efficiency and feed waste by juvenile spiny lobster, <i>Sagmariasus verreauxi</i>, fed different formulated pellet diameters or lengths across two separate experiments. Feed texture (hard and dry pellet, HDP; soft and moist pellet, SMP) was also examined. Juvenile lobsters were fed experimental feeds at 0.5% BW daily over a 6 h duration. The resulting feed waste was categorised as either feeding-related waste (FRW) or non-feeding-related waste (NFRW). For all feed types, the FRW increased with increasing pellet diameter and pellet length. The increase in FRW corresponded with a decrease in NFRW, particularly for HDP, resulting in no difference in total feed waste in any treatment investigated. Thus, even with improved feeding efficiency with small feed dimensions, feed intake was not improved. Feed leaching rate decreased with increasing pellet size, suggesting a more rapid decline in feed attractiveness for smaller pellets. This finding indicates that currently a counteractive interaction exists between pellet size and feed attractiveness and suggests improving attractiveness would further enhance feeding. Future research should aim at optimising feed dimensions simultaneously to support efficient feeding whilst enhancing attraction/gustatory stimulations. |
| first_indexed | 2024-03-09T16:50:51Z |
| format | Article |
| id | doaj.art-60fdaa6df7504353a58df2ec5b366fce |
| institution | Directory Open Access Journal |
| issn | 2410-3888 |
| language | English |
| last_indexed | 2024-03-09T16:50:51Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fishes |
| spelling | doaj.art-60fdaa6df7504353a58df2ec5b366fce2023-11-24T14:41:42ZengMDPI AGFishes2410-38882023-11-0181155310.3390/fishes8110553Effect of Feed Texture and Dimensions, on Feed Waste Type and Feeding Efficiency in Juvenile <i>Sagmariasus verreauxi</i>Katarzyna Kropielnicka-Kruk0Quinn P. Fitzgibbon1Mohamed B. Codabaccus2Andrew J. Trotter3Chris G. Carter4Gregory G. Smith5Institute for Marine & Antarctic Studies (IMAS), University of Tasmania, Private Bag 49, Hobart, TAS 7001, AustraliaInstitute for Marine & Antarctic Studies (IMAS), University of Tasmania, Private Bag 49, Hobart, TAS 7001, AustraliaInstitute for Marine & Antarctic Studies (IMAS), University of Tasmania, Private Bag 49, Hobart, TAS 7001, AustraliaInstitute for Marine & Antarctic Studies (IMAS), University of Tasmania, Private Bag 49, Hobart, TAS 7001, AustraliaInstitute for Marine & Antarctic Studies (IMAS), University of Tasmania, Private Bag 49, Hobart, TAS 7001, AustraliaInstitute for Marine & Antarctic Studies (IMAS), University of Tasmania, Private Bag 49, Hobart, TAS 7001, AustraliaThe “messy” feeding behaviour of spiny lobsters remains an obstacle for formulated feed development. This study examined the relationship between feeding efficiency and feed waste by juvenile spiny lobster, <i>Sagmariasus verreauxi</i>, fed different formulated pellet diameters or lengths across two separate experiments. Feed texture (hard and dry pellet, HDP; soft and moist pellet, SMP) was also examined. Juvenile lobsters were fed experimental feeds at 0.5% BW daily over a 6 h duration. The resulting feed waste was categorised as either feeding-related waste (FRW) or non-feeding-related waste (NFRW). For all feed types, the FRW increased with increasing pellet diameter and pellet length. The increase in FRW corresponded with a decrease in NFRW, particularly for HDP, resulting in no difference in total feed waste in any treatment investigated. Thus, even with improved feeding efficiency with small feed dimensions, feed intake was not improved. Feed leaching rate decreased with increasing pellet size, suggesting a more rapid decline in feed attractiveness for smaller pellets. This finding indicates that currently a counteractive interaction exists between pellet size and feed attractiveness and suggests improving attractiveness would further enhance feeding. Future research should aim at optimising feed dimensions simultaneously to support efficient feeding whilst enhancing attraction/gustatory stimulations.https://www.mdpi.com/2410-3888/8/11/553spiny lobsterfeed dimensionsfeed wastefeed intakefeeding efficiency |
| spellingShingle | Katarzyna Kropielnicka-Kruk Quinn P. Fitzgibbon Mohamed B. Codabaccus Andrew J. Trotter Chris G. Carter Gregory G. Smith Effect of Feed Texture and Dimensions, on Feed Waste Type and Feeding Efficiency in Juvenile <i>Sagmariasus verreauxi</i> Fishes spiny lobster feed dimensions feed waste feed intake feeding efficiency |
| title | Effect of Feed Texture and Dimensions, on Feed Waste Type and Feeding Efficiency in Juvenile <i>Sagmariasus verreauxi</i> |
| title_full | Effect of Feed Texture and Dimensions, on Feed Waste Type and Feeding Efficiency in Juvenile <i>Sagmariasus verreauxi</i> |
| title_fullStr | Effect of Feed Texture and Dimensions, on Feed Waste Type and Feeding Efficiency in Juvenile <i>Sagmariasus verreauxi</i> |
| title_full_unstemmed | Effect of Feed Texture and Dimensions, on Feed Waste Type and Feeding Efficiency in Juvenile <i>Sagmariasus verreauxi</i> |
| title_short | Effect of Feed Texture and Dimensions, on Feed Waste Type and Feeding Efficiency in Juvenile <i>Sagmariasus verreauxi</i> |
| title_sort | effect of feed texture and dimensions on feed waste type and feeding efficiency in juvenile i sagmariasus verreauxi i |
| topic | spiny lobster feed dimensions feed waste feed intake feeding efficiency |
| url | https://www.mdpi.com/2410-3888/8/11/553 |
| work_keys_str_mv | AT katarzynakropielnickakruk effectoffeedtextureanddimensionsonfeedwastetypeandfeedingefficiencyinjuvenileisagmariasusverreauxii AT quinnpfitzgibbon effectoffeedtextureanddimensionsonfeedwastetypeandfeedingefficiencyinjuvenileisagmariasusverreauxii AT mohamedbcodabaccus effectoffeedtextureanddimensionsonfeedwastetypeandfeedingefficiencyinjuvenileisagmariasusverreauxii AT andrewjtrotter effectoffeedtextureanddimensionsonfeedwastetypeandfeedingefficiencyinjuvenileisagmariasusverreauxii AT chrisgcarter effectoffeedtextureanddimensionsonfeedwastetypeandfeedingefficiencyinjuvenileisagmariasusverreauxii AT gregorygsmith effectoffeedtextureanddimensionsonfeedwastetypeandfeedingefficiencyinjuvenileisagmariasusverreauxii |