HERITABILITAS, RESPON SELEKSI DAN GENOTIP DENGAN RAPD PADA IKAN NILA F3 (Oreochromis niloticus)

Gustiano, Rudhy; Kusmini, Irin Iriana; Iskandariah, Iskandariah; Arifin, Otong Zenal; Huwoyon, Gleny Hasan; Ath-thar, Muhammad Hunaina Fariduddin

doi:10.15578/jra.8.3.2013.347-354

Cited by 4 publications

(5 citation statements)

References 7 publications

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“…Berdasarkan estimasi nilai heritabilitas dan diferensial seleksi yang diperoleh dalam penelitian ini, dapat diprediksi bahwa pada generasi selanjutnya (F1) akan meningkat sebesar 10,66% pada populasi jantan dan 10,99% pada betina. Nilai ini selaras dengan hasil penelitian Ponzoni et al (2005), Gustiano et al (2013), dan Nugroho et al (2017) yang menyatakan bahwa respons seleksi pada ikan nila kurang lebih 10% dengan kisaran nilai 10,69-15,29% per generasi (populasi ikan jantan) dan 12,60-16,50% per generasi (populasi ikan betina). Demikian pula Bentsen et al (2017) melaporkan bahwa respons seleksi pada ikan nila GIFT dari generasi pertama sampai generasi kelima berkisar dari 10-14 %.…”

Section: Parameter Dan Analisis Dataunclassified

ESTIMASI HERITABILITAS DAN RESPONS SELEKSI IKAN NILA HITAM (Oreochromis niloticus) DI TAMBAK

Robisalmi

2019

BERITABIOLOGI

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Genetic improvement in the establishment of a rapid growth strain of Nile tilapia might be achieved through selective breeding program This research was aimed to estimate heritability and response selection of nile tilapia in brackishwater pond. Breeding activity was carried out in fresh water in hapa 2x1x1 m. Males and females were breeding in pairs with a ratio of 1: 1. The number of established families was 19 families of 50 broodstock pairs. Harvesting of larvae was done on day 14. Larvae were collected and then kept in net 2 x 2 x1 m with stocking density 125 fish/m2 for 60 days. The next stage was sexing by grouping the male and female populations in each family. Grow out was carried out in net cage (3 x 5 x1.5 m ) that were placed in brackiswater pond at salinity 25–30 g/L with density 10 fish/m2. Selection of broodstock in the male and female populations was done on weight of 250–300 g. Cut off selection was determined on weight from 316 to 382g (male) and 221–315 g (female). The results of this study showed that the estimation value for heritability of male and female were 0.42 ± 0.22 and 0.42 ± 0.23 and the estimation value for response selection were 10.66% (male) and 10.92% (female).

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Section: Parameter Dan Analisis Dataunclassified

ESTIMASI HERITABILITAS DAN RESPONS SELEKSI IKAN NILA HITAM (Oreochromis niloticus) DI TAMBAK

Robisalmi

2019

BERITABIOLOGI

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“…Although Beaumont et al (2010) stated that a high selection differential cannot be applied if the number of selected individuals produced is only small, because it can increase inbreeding rates through the use of limited broodstock. Factors that influence the selection response include selection differential and heritability of selected characters, sampling error, and environmental influences (Falconer and Mackay, 1996;Gustiano et al, 2013). In addition, a higher selection response was also associated with a higher intensity of selection in the male and female parents used compared to the previous generation (Thodesen et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Growth Performance and Improving Genetic Gain of Blue Tilapia (<I>Oreochromis aureus</I>) Fourth-generation (F-4) at Brackish Water Pond

Robisalmi

Gunadi

Setyawan

2023

JIPK

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Highlight Reseacrh The study showed that the selected F-4 blue tilapia had a better growth pattern than the control (non-selection) F-4 blue tilapia The difference in performance between the two populations of blue tilapia is an illustration of the genetic improvement that is passed on from parents to offspring as a result of the selective breeding The realized heritability value of the weight character of F-4 blue tilapia in the high category There was an increase in growth in the F-4 blue tilapia population with a positive response to selection Abstract Breeding program in order to increase genetic improvement in blue tilapia have not been widely carried out at brackish water ponds. This study aimed to evaluate the increase in growth and genetic gain of F-4 blue tilapia from family selection in ponds with 25-30 gL-1 salinity. The parent used for the formation of F-4 is the selected parent F-3 and as a control using the non-selected parent F-3. Spawning was carried out in a full-sib mating design using the family selection method. The ratio of male and female broodstock is 1: 2. Spawning and nursery activities of F-4 blue tilapia are carried out in freshwater. The enlargement test was carried out in the net cage 5m x2.5m x1 m which was installed in the ponds with a salinity of 25-35 g l-1 for 120 days, at a stocking density of 10 fish m-2. At the end of maintenance, a selection process is carried out on the weight traits. Parameters observed included growth, survival, and genetic values. The results showed that the growth and survival in the F-4 blue tilapia population, male and female selected populations, had a higher value than in the non-selected population. The realized heritability value of the population growth character of the F-4 blue fish is in the high category. The difference in the average weight of the selected blue tilapia and the control was equivalent to an increase in genetic value added by 15.06% (male population) and 17.92% (female population).

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“…Ikan gabus diletakkan di atas millimeter blok yang telah diberi dasar sterofoam, dengan posisi ikan menghadap ke kiri. Truss morphometric ikan gabus berpedoman pada kombinasi teknik pada Gustiano et al (2013), dan Song et al (2013). Tubuh ikan diukur berdasarkan 23 jarak yang terbagi menjadi 4 bidang, yaitu (A) kepala, (B) badan tengah, (C) badan belakang, dan (D) pangkal ekor.…”

Section: Truss Morphometricunclassified

“…Letak Jarak Pengukuran Truss Morphometric Ikan Gabus (C.striata). (Sumber Gambar: Gustiano et al, 2013).…”

Section: Truss Morphometricunclassified

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Putra¹,

Bhagawati²,

Setyaningrum³

2023

bioe

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The increase in the high demand for snakehead fish from the community causes high exploitation of this fish. The high activity of catching snakehead fish along with the production volume that increases every year will certainly threaten the sustainability of snakehead fish. The need for morphometric and meristic research is to provide information that can be used for conservation efforts in the Klawing River. The purpose of this study was to determine whether standard morphometry, truss morphometric, and meristic can be used to identify the sex of snakehead fish from the Klawing River and to determine the specific characters that distinguish the morphology of male and female snakehead fish. The method used is a survey with accidental sampling from the Klawing River assisted by fishermen. Sampling was carried out 5 times from February to March 2021. The variables observed were morphological performance, standard morphometry, truss morphometric, and meristic. Parameters in this study were body shape, mouth shape, mouth position, caudal fin shape, type of scales, tooth type, ratio of body parts distances, number of fin rays, and number of scales. The perfprmance morphological, standard morphometric, truss morphometric, and meristic then analyzed descriptive. The results showed that morphological performance could not be used as a sex determine of snakehead fish. The standard morphometric characters that can be used as sex differences for snakehead fish from 21 characters are head width with an asymp.sig value 0.20. The truss morphometric character that can be used as sex distinguishing snakehead fish is from 23 characters, A1 with an asymp.sig value 0.048, A6 with an asymp.sig value 0.038, C5 with an asymp.sig value 0.021. Meristic characters cannot be used to distinguish the sex of snakehead fish, because they have relatively the same number of fin rays and scales.

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HERITABILITAS, RESPON SELEKSI DAN GENOTIP DENGAN RAPD PADA IKAN NILA F3 (Oreochromis niloticus)

Cited by 4 publications

References 7 publications

ESTIMASI HERITABILITAS DAN RESPONS SELEKSI IKAN NILA HITAM (Oreochromis niloticus) DI TAMBAK

ESTIMASI HERITABILITAS DAN RESPONS SELEKSI IKAN NILA HITAM (Oreochromis niloticus) DI TAMBAK

Evaluation of Growth Performance and Improving Genetic Gain of Blue Tilapia (<I>Oreochromis aureus</I>) Fourth-generation (F-4) at Brackish Water Pond

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