Comparison in Growth, Feeding, and Metabolism Between a Fast-Growing Selective Strain and a Cultured Population of Pearl Oyster (Pinctada fucata martensii)

Pearl oyster (Pinctada fucata martensii) is the main species cultured for marine pearls in the world. A breeding program was carried out for desirable production traits, including high growth rate, and a fast-growing selective strain of pearl oysters was established. In the current study, we compare...

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Autores principales:	Xingzhi Zhang, Bingcong Ye, Zhifeng Gu, Meng Li, Shouguo Yang, Aimin Wang, Chunsheng Liu
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	pearl oyster selective strain physiological feeding metabolism Science Q General. Including nature conservation, geographical distribution QH1-199.5
Acceso en línea:	https://doaj.org/article/4a7a82bbe7984996bee24085a86ce8ce
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spelling	oai:doaj.org-article:4a7a82bbe7984996bee24085a86ce8ce2021-12-01T18:38:40ZComparison in Growth, Feeding, and Metabolism Between a Fast-Growing Selective Strain and a Cultured Population of Pearl Oyster (Pinctada fucata martensii)2296-774510.3389/fmars.2021.770702https://doaj.org/article/4a7a82bbe7984996bee24085a86ce8ce2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmars.2021.770702/fullhttps://doaj.org/toc/2296-7745Pearl oyster (Pinctada fucata martensii) is the main species cultured for marine pearls in the world. A breeding program was carried out for desirable production traits, including high growth rate, and a fast-growing selective strain of pearl oysters was established. In the current study, we compared the growth characteristics between a selective strain and a cultured population of P. f. martensii in Beihai, Guangxi Province, China. Large size (SL) and small size (SS) individuals of the selective strain were selected, and the differences of physiological and metabolic indexes, such as feeding, respiration, excretion, and enzyme activities between SL and SS and cultured population (CL), were also compared. The results showed that at the age of 6 months, pearl oysters of the selective strain were 14.61% larger than CL, and the proportion of SL (30–40 mm) was 59%, which was two times higher than CL (28%). SL with a rapid growth rate had a high clearance rate (CR), and the CR of SL was about 1.8 times higher than that of CL and 5 times higher than that of SS. In addition, the activities of digestive enzymes (amylase, pepsin, and lipase) and growth-related carbonic anhydrase enzymes in SL were higher than those in the other two groups (p < 0.05). SS with a slow growth rate had higher oxygen consumption (OCR) and ammonia excretion (AER) rates than SL and CL (p < 0.05). Our results suggest that the rapid growth of the selective strain P. f. martensii can be attributed to increased energy intake and reduced energy consumption.Xingzhi ZhangXingzhi ZhangBingcong YeZhifeng GuMeng LiShouguo YangAimin WangChunsheng LiuFrontiers Media S.A.articlepearl oysterselective strainphysiologicalfeedingmetabolismScienceQGeneral. Including nature conservation, geographical distributionQH1-199.5ENFrontiers in Marine Science, Vol 8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	pearl oyster selective strain physiological feeding metabolism Science Q General. Including nature conservation, geographical distribution QH1-199.5
spellingShingle	pearl oyster selective strain physiological feeding metabolism Science Q General. Including nature conservation, geographical distribution QH1-199.5 Xingzhi Zhang Xingzhi Zhang Bingcong Ye Zhifeng Gu Meng Li Shouguo Yang Aimin Wang Chunsheng Liu Comparison in Growth, Feeding, and Metabolism Between a Fast-Growing Selective Strain and a Cultured Population of Pearl Oyster (Pinctada fucata martensii)
description	Pearl oyster (Pinctada fucata martensii) is the main species cultured for marine pearls in the world. A breeding program was carried out for desirable production traits, including high growth rate, and a fast-growing selective strain of pearl oysters was established. In the current study, we compared the growth characteristics between a selective strain and a cultured population of P. f. martensii in Beihai, Guangxi Province, China. Large size (SL) and small size (SS) individuals of the selective strain were selected, and the differences of physiological and metabolic indexes, such as feeding, respiration, excretion, and enzyme activities between SL and SS and cultured population (CL), were also compared. The results showed that at the age of 6 months, pearl oysters of the selective strain were 14.61% larger than CL, and the proportion of SL (30–40 mm) was 59%, which was two times higher than CL (28%). SL with a rapid growth rate had a high clearance rate (CR), and the CR of SL was about 1.8 times higher than that of CL and 5 times higher than that of SS. In addition, the activities of digestive enzymes (amylase, pepsin, and lipase) and growth-related carbonic anhydrase enzymes in SL were higher than those in the other two groups (p < 0.05). SS with a slow growth rate had higher oxygen consumption (OCR) and ammonia excretion (AER) rates than SL and CL (p < 0.05). Our results suggest that the rapid growth of the selective strain P. f. martensii can be attributed to increased energy intake and reduced energy consumption.
format	article
author	Xingzhi Zhang Xingzhi Zhang Bingcong Ye Zhifeng Gu Meng Li Shouguo Yang Aimin Wang Chunsheng Liu
author_facet	Xingzhi Zhang Xingzhi Zhang Bingcong Ye Zhifeng Gu Meng Li Shouguo Yang Aimin Wang Chunsheng Liu
author_sort	Xingzhi Zhang
title	Comparison in Growth, Feeding, and Metabolism Between a Fast-Growing Selective Strain and a Cultured Population of Pearl Oyster (Pinctada fucata martensii)
title_short	Comparison in Growth, Feeding, and Metabolism Between a Fast-Growing Selective Strain and a Cultured Population of Pearl Oyster (Pinctada fucata martensii)
title_full	Comparison in Growth, Feeding, and Metabolism Between a Fast-Growing Selective Strain and a Cultured Population of Pearl Oyster (Pinctada fucata martensii)
title_fullStr	Comparison in Growth, Feeding, and Metabolism Between a Fast-Growing Selective Strain and a Cultured Population of Pearl Oyster (Pinctada fucata martensii)
title_full_unstemmed	Comparison in Growth, Feeding, and Metabolism Between a Fast-Growing Selective Strain and a Cultured Population of Pearl Oyster (Pinctada fucata martensii)
title_sort	comparison in growth, feeding, and metabolism between a fast-growing selective strain and a cultured population of pearl oyster (pinctada fucata martensii)
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/4a7a82bbe7984996bee24085a86ce8ce
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Comparison in Growth, Feeding, and Metabolism Between a Fast-Growing Selective Strain and a Cultured Population of Pearl Oyster (Pinctada fucata martensii)

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