scholarly journals Penetasan telur penyu sisik (Eretmochelys imbricata) dengan kedalaman yang berbeda

2021 ◽  
Vol 8 (2) ◽  
pp. 86
Author(s):  
Erlangga Erlangga ◽  
Ayu Lestari ◽  
Zulfikar Zulfikar ◽  
Munawar Khalil ◽  
Riri Ezraneti

This research was conducted from November 2018 until January 2019 which was held at the UPTD Conservation and Supervision of Marine Resources and Fisheries in West Sumatera, Pariaman City.  The aim of the research is to know hatchling hawksbill sea turtle eggs based on nest depth. The method used in this study is a nonfactorial randomized block design (RBD) consisting of 3 treatments and 3 replications. The treatments used were treatment A (with a depth of 30 cm incubation nest), treatment B (with a depth of incubation nest 40 cm), and Treatment C (with a depth of incubation nest 50 cm). The results of this study showed that hatching hawksbill eggs hatched very significantly, the best hatching percentage was in treatment A (30cm) with 78% hatching at 6:00 a.m. with hatching temperature range of 24-28oC, hatching pH of 6,6-6,8 and medium sized incubation sand with a size of 0.150 mm with a weight reaching 461 grams.Keywords: Hatching percentage, Hawksbill turtle, pH, Temperature

2020 ◽  
Vol 5 (2) ◽  
pp. 1-7
Author(s):  
Nova Yulianti ◽  
Deny Sapto Chondro Utomo ◽  
Berta Putri

The results of spawning in sangkuriang catfish farming do not always go according to the expected results, as many eggs died before hatcing. Therefore, it is necessary to use spawning hormones which can improve egg quality in order to increase profits in cultivation. This research was aimed to determine the difference on success performance of sangkuriang catfish using HCG, Ovaprim, and Spawnprim. This research used a randomized block design (RAK) with 3 treatments i.e P1 (HCG 500 IU/kg), P2 (Ovaprim 0,5 ml/kg), P3 (Spawnprim 0,5 ml/kg) and 3 groups of repetition i.e K1 (spawning group day-1), K2 (spawning group day-2), and K3 (spawning group day-3). The results of this research showed that using Ovaprim hormone had the highest value than other treatments like on latent time 606±17,78 minutes, egg fertilization percentage 75±2,65%, and egg hatching percentage 69,33±5,69%. Then on egg fecundity and egg diameter showed no significant effect with other treatments.


Author(s):  
Jenly G. Onthoni ◽  
Lefrand Manoppo ◽  
Revols D. Ch. Pamikiran

Marore Island is one of the northernmost outermost islands in the territorial waters of Indonesia. The problems that often hamper the development of outer islands are the low ability of the community to manage the potential of marine resources and the lack of production facilities and infrastructure. Characteristic of an archipelagic region is to have relatively high fishery resources, but very susceptible to environmental degradation with very dynamic and unpredictable meteorological conditions. Bottom hand line is one of the many fishing gear used by fishermen in Marore Island to catch bottom fish; but it is not yet known which bait is most effective for catching the fish. Therefore this study aims to study the effect of different kind of bait on the catch of bottom hand line, and to identify the catch. This research was conducted in November until December 2016 with experimental method. The baits used consist of mackerel fish (Decapterus macarellus), selar (Selaroides sp.), frigate tuna (Auxixrochei.) and squid (Loligo sp.); the data were analyzed using randomized block design.  Total catch of 136 fish; which consists of 6 families, 14 genera and 24 species.  Analysis of variance show that the use of mackerel bait is no different from frigate tuna, but significantly different from selar; the use of frigate tuna bait is not significantly different from selar.Keywords: Outer Island, Marore Island, coral fishes, bottom hand lineABSTRAKPulau Marore adalah salah satu pulau terluar paling utara di wilayah perairan Indonesia. Permasalahan yang sering menghambat perkembangan pulau-pulau terluar seperti Pulau Marore adalah masih rendahnya kemampuan masyarakat untuk mengelola potensi sumberdaya laut dan minimnya sarana dan prasarana produksi. Ciri khas suatu wilayah kepulauan adalah memiliki sumberdaya perikanan yang relative tinggi, tetapi sangat rentan terhadap degradasi lingkungan dengan kondisi meteorologis yang sangat dinamis dan sulit diprediksi. Pancing dasar merupakan salah satu alat tangkap yang banyak di gunakan oleh nelayan di PulauMarore untuk menangkap ikan-ikan dasar; tetapi belum diketahui umpan mana yang paling efektif untuk menangkap ikan-ikan tersebut. Oleh karena itu penelitian ini bertujuan untuk mempelajari pengaruh jenis umpan terhadap hasil tangkapan pancing dasar; dan mengidentifikasi jenis-jenis ikan yang tertangkap.  Penelitian ini dilakukan pada bulan November-Desember 2016 dengan metode eksperimental. Umpan yang digunakan terdiri dari ikan layang (Decapterusmacarellus), selar (Selaroides sp.), tongkol (Auxix rochei.) dan cumi-cumi (Loligo sp.).dan data dianalisis menggunakan rancangan acak kelompok.  Hasil tangkapan total sebanyak 136 ekor; yang terdiri dari 6 famili, 14 genus dan 24 spesiesikan. Analisis sidik ragam menunjukkan bahwa perbedaan jenis umpan pada pancing dasar memberikan pengaruh yang sangat nyata terhadap hasil tangkapan. Hasil uji BNT untuk perlakuan menunjukkan bahwa penggunaan umpan cumi berbeda sangat nyata dengan ketiga umpan lainnya. Penggunaan umpan laying tidak berbeda dengan umpan tongkol tetapi berbeda sangat nyata dengan umpan selar. Penggunaan umpan tongkol tidak berbeda nyata dengan umpan selar.Kata-kata kunci: PulauTerluar, PulauMarore, ikan-ikankarang, pancing dasar


2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Rika Agustina ◽  
Rita Sunartaty ◽  
Teuku Makmur

Coconut frond ash is one of the wastes from coconut trees which has not been maximally utilized. Coconut frond ash contains MgCl2 and KCl so that it can be used as a salt substitute in the process of preserving fish. In this study coconut frond ash was used as a basic ingredient for making dried mackerel with a long time of drying to storage. The purpose of this study was to determine the effect of drying time on mackerel storage. The research design used was a Randomized Block Design (RCBD) with 2 factors studied. The first factor is the drying time consists of 3 levels, namely P1 = 3 days, P2 = 4 days, P3 = 5 days. The second factor is storage which consists of 3 levels, namely S1 = 30 days, S2 = 60 days, S3 = 90 days. Each treatment was repeated 2 times to obtain 18 experimental units to observed hedonic tests. From the results of the study it can be stated that the treatment has a very significant effect (P≥0.01) on the hedonic test which includes (color, aroma, taste and texture).


2019 ◽  
Vol 6 (1) ◽  
pp. 78
Author(s):  
Muhammad Ade Salim ◽  
Muhammad Nur Ihsan ◽  
Nur Isnaini ◽  
Trinil Susilawati

ABSTRAKAir kelapa muda varietas viridisdapat dijadikan pengencer aletrnatif semen cair bagi program IB di daerah minim sarana semen beku. Tujuan penelitian ini untuk menguji pengaruh penggunaan air kelapa muda viridissebagai bahan pengencer terhadap kualitas semen cair kambing Boer setelah didinginkan. Dilaksanakanselama 3 bulan di Laboratorium Fakultas Peternakan UBUnit SumberSekar,Malang. Metodenya yaitu eksperimen. Semen dari  3 pejantan Boer umur 3-5 tahun, dikoleksi seminggu sekali dengan VB. Air kelapa mudaviridis umur 5-7 bulan serta tris aminomethane sebagai kontrol. Didesain menggunakan Rancangan Acak Kelompok (RAK) dengan 2 perlakuan yaitu P0 (tris aminomethane + 10% KT) dan  P1 (air kelapa muda viridis + 10% KT) masing-masing diulang 10 kali. Data dianalisis dengan analisis Ragam (Anova) dengan software Genstat 18. Variabelnya yaitu motilitas individu, viabilitas dan abnormalitas. Hasil penelitian yaitu motilitas individu pada P1bertahan sampai 4 hari (40,5± 24,3%), viabilitas terbaik sampai hari ke-5 (42±24,6%), abnormalitas terendah di hari ke-7(1,31± 0,6). Kesimpulannya, Pengencer air kelapa muda viridis dapat mempertahankan kualitas semen cair kambing Boer selama 4 hari untuk motilitas dan 5 hari untuk viabilitas.Kata Kunci:pengencer, air kelapa, varietas viridisABSTRACTYoung viridis coconut water could be used as an alternative to liquid semen diluent for artificial insemination program in the area with limited facility for frozen semen production. This study evaluated the use of young coconut water as a diluent on liquid semen quality of Boer goat after cold storage. This study was carried out for 3 months at Sumber Sekar Laboratory, Faculty of Animal Husbandry, University of Brawijaya, Malang. The semen was collected from 3 Boer bucks aged at 3 to 5 years old. The semen collection was done once a week with the aid of artificial vagina. The diluents used were young Viridis coconut (5 to 7 months old) and tris aminomethane. The method used was an experiment in a randomized block design with 2 treatments and 10 replicates. The treatments used were T0: tris aminomethane + 10% egg yolk (control) and T1:  young Viridis coconut water + 10% egg yolk. Data were analyzed by analysis of variance using Genstat 18 software. The variables measured were sperm individual motility, viability, and abnormality. The results showed that the sperm individual motility in T1 survived up to 4 days (40.5± 24.3%), the best viability at 5 days (42.0±24.6%),  while the lowest abnormality at 7 days (1.31±0.6). It could be concluded that: 1. Tris aminomethane diluent has higher quality with the storage length up to 9 days, 2. Young Viridis coconut water diluent could preserve liquid semen quality of Boer goat up to 4 days for sperm motility and 5 days for sperm viability.Keywords: diluents, coconut water, viridis variety


2011 ◽  
Vol 59 (1) ◽  
pp. 87-102 ◽  
Author(s):  
S. Sood ◽  
N. Kalia ◽  
S. Bhateria

Combining ability and heterosis were calculated for fourteen lines of linseed in a line × tester mating design using twelve lines and two diverse testers in two different environments. The hybrids and parental lines were raised in a completely randomized block design with three replications to investigate seed and fibre yield and their component traits. Genetic variation was significant for most of the traits over environments. Combining ability studies revealed that the lines KL-221 and LCK-9826 were good general combiners for seed yield and most of its components, whereas LMH-62 and LC-2323 were good general combiners for yield components only. Moreover, KL-221 was also a good general combiner for fibre yield. Similarly, B-509 and Ariane were good general combiners for fibre yield and most of its components. Among the specific cross combinations, B-509 × Flak-1 was outstanding for seed yield per plant and B-509 × KL-187 and LC-2323 × LCK-9826 for fibre yield per plant, with high SCA effects. In general, the hybrids excelled their respective parents and the standard checks for most of the characters studied. Based on the comparison of mean performance, SCA effects and the extent of heterosis, the hybrids LC-2323 × LCK-9826 and B-509 × KL-221 appeared to be the most promising for both seed and fibre yield. Other promising combinations were LC-2323 × KL-210 and B-509 × Ariane for seed and fibre yield, respectively. The superiority of LC-2323, LCK-9826, KL-221, B-509 and Ariane as good general combiners was further confirmed by the involvement of these parents in the desirable cross combinations.


2016 ◽  
Vol 5 (2) ◽  
pp. 277
Author(s):  
Usman Usman ◽  
Neltje Nobertine Palinggi ◽  
Kamaruddin Kamaruddin ◽  
Makmur Makmur ◽  
Rachmansyah Rachmansyah

Penelitian ini dilakukan untuk mendapatkan informasi tentang kebutuhan optimum kadar protein dan lemak pakan terhadap pertumbuhan dan komposisi badan ikan kerapu macan ukuran konsumsi. Sembilan pakan uji dibuat dalam bentuk moist pelet dengan tiga dosis protein (46%, 49%, dan 52%) dan tiga dosis lemak (9%, 11%, dan 13%). Ikan uji dipelihara dalam 27 keramba jaring apung ukuran 1 m x 1 m x 2 m selama 140 hari, diberi pakan uji secara satiasi dua kali sehari dan diset dalam rancangan acak kelompok pola faktorial berdasarkan kelompok ukuran bobot awal ikan yaitu (i) 122,0±4,2 g; (ii) 144,0±7,1 g; dan (iii) 172,9±10,5 g. Hasil penelitian menunjukkan bahwa laju pertumbuhan spesifik dan sintasan ikan relatif sama (>0,05) di antara perlakuan. Efisiensi pakan cenderung meningkat dengan meningkatnya kadar protein dan lemak pakan. Tingkat efisiensi pemanfaatan protein cenderung menurun dengan meningkatnya kadar protein pakan, tetapi meningkat dengan meningkatnya kadar lemak pakan. Hasil analisis proksimat badan ikan menunjukkan bahwa kadar bahan kering dan lemak ikan relatif tidak dipengaruhi (P>0,05) oleh peningkatan kadar protein pakan, namun kadar bahan kering dan lemak ikan tersebut sedikit naik dengan meningkatnya kadar lemak pakan. Kadar protein dan abu ikan relatif tidak dipengaruhi oleh perubahan kadar protein dan lemak pakan. Berdasarkan hasil penelitian ini tampak bahwa pakan dengan kadar protein 49% dan lemak sekitar 11% mampu memberikan pertumbuhan dan komposisi badan ikan kerapu macan yang baik.This experiment was conducted to investigate the optimum dietary protein and lipid level for growth and body composition of tiger grouper. Nine dietary experiments were formulated to moist pellet contain three levels of protein (46%, 49%, and 52%) and three levels of lipid (9%, 11%, and 13%). The fish were fed twice daily to satiation for 140 days in twenty seven net cages of 1 m x 1 m x 2 m, were set up factorial randomized block design based on fish size group i.e. (i) 122.0±4.2 g, (ii) 144.0±7.1 g, and (iii) 172.9±10.5 g. The results shown that specific growth rate and survival rate were not significant different (P>0.05) for all treatments. Feed efficiency increased when protein and lipid content increased. Protein efficiency decreased when protein diets increased and increased when lipid diets increased. No interaction occurred between protein and lipid content to all observable biological variables. Dry matter and lipid content of test fish were not affected by protein diets increase but by lipid diet content. Protein and ash of test fish were not affected by either protein or lipid contained in diet. To assure high growth rates and high quality of fish product, it is suggested to feed tiger grouper with diet containing 49% protein and 11% lipid. 


Author(s):  
Nihad H. Mutlag ◽  
Ameer S. A. Al-Haddad

A field study was conducted to evaluate the efficiency of four microbial insecticides viz. Beauveria bassiana; HaNPV (Helicoverpa armigera Nuclear Polyhedrosis virus); (Bacillus thuringiensisvar.kurstaki 2 gm/L); HaNPV+Bt; neem oil; neem cake and D.D.V.P EC 76% @0.05% at Research Farm SHIATS,Allahabad during rabi season of 2011-2012. The experiment was laid out in randomized block design with seven treatment and replicated thrice. The observation larval populations of H. armigera were recorded one day before treatment was recorded at 3,7, and 10 days after treatments. The larva population of H. armigera appeared in the third week of February (8 the Standard week) and reached its peak of 14.65 larvae in first week of April and decline rapidly with maturation of crop. There was only one peak in the larval population observation in the 1st week. Bacillus thuringiensis was the most effective chemical by D.D.V.P.76%@0.05% . Among the microbial insecticides. HaNPV ,was the most effective followed by HaNPV+Bt and neem cake . The combination treatments were less effective than the individual treatment neem oil and B. bassiana were the least effective treatment in reducing the larval population of Heliverpa armigera.


2011 ◽  
Vol 1 (2) ◽  
pp. 98-114
Author(s):  
Lina Widawati

Noni (Morinda Citrifolia) is a herb which has effect to cure cancer, high blood pressure, etc. Makes the smell and the taste of noni less delicious because there are a number of organic acid like caproic acid and caprilic acid in noni. Therefore it needs an alternative product such as pressed candy. Correct process of extraction and addition of binding agents can produce the pressed candy with the physical, chemical and organoleptic characteristic that are expected. The objective of  this research wash to know the optimum ratio of noni compared with ethanol so it can produce dry extrac of noni fruit with vitamin C and high activity antioxidant and also to know the influence of binding agents type in the making of noni pressed candy. This research use the Randomized Block Design (RBD), where at antecedent research consisted of 3 (three) levels which is ratio of noni fruit compared by ethanol (1:1, 1:2, 1:3) and best treatment used for the main research. Main research consisted of 3 (three) levels that was influence of binding agents type (maltodextrin 5%, gelatin 1,5% and gom arab 1%). Then its continued with the BNT test at ? = 0,05 (differing reality). Test of organoleptic done by hedonic score test. Best treatment uses multiple attribute method. The result of research show that the best treatment from dry filtrate of  noni fruit was with the ratio of noni fruit compared by ethanol = 1:3. Best treatment of noni fruit pressed candy is with the gelatin addition 1,5 %.


2019 ◽  
Author(s):  
João Macedo Moreira ◽  
Aldrin Martin Pérez-Marin ◽  
Jucilene Silva Araújo ◽  
George Rodrigues Lambais ◽  
Aldo Sales

The study aimed to evaluate the efficiency of nutrient use in three cactus forage (CF) cultivars (Opuntia stricta and Nopalea cochenillifera), 365 days after planting under different types of fertilizer in two research sites (Condado and Riachão) of the semi-arid region of Paraiba state, Brazil. The experimental design was a randomized block design with treatments in a factorial scheme (3×4), three cultivars of CF (Orelha de elefante Mexicana; Miúda; Bahiana), and four fertilizer treatment (Control; Manure; Manure with Nitrogen; Mineral fertilization) with four replications. The CF cultivars did not differ significantly in nutrient use. That means of physiological efficiency by CF cultivars were 1.62, and 2.36 kg of biomass per kg of nutrient applied in Condado and Riachão, respectively. The efficiency of nutrient recovery was 16% for the Condado, according the following order: K> P> Ca> N> C = Mg and 12% for Riachão: K> P> N> C = Ca = Mg. In the two research sites, the treatment with mineral fertilization significantly increased the efficiency use of N, P and K in comparison to the other treatments. The average for efficiency of nutrient utilization was 25% and 19% for Condado and Riachão, respectively, in the following order for Condado: K> P> N> Ca = Mg> C, and Riachão: K> P> N> C> Mg = Ca. In a CF production system aiming to obtain a yearly harvest cycle, it is necessary to replenish of K and P to maintain the nutritional balance between the soil and CF plant.


2018 ◽  
Vol 9 (2) ◽  
pp. 153-163
Author(s):  
Wiwik Ambarsari ◽  
Henly Yuliana

The study aimed to determine the effect of the combination of city waste compost and cattle manure on the growth and yield of pakcoy plants (Brassica rapa, L. Chinensis) in Aluvial, Indramayu Regency. The study was conducted at the Experimental Garden of the Faculty of Agriculture, Wiralodra University, Indramayu Regency from March to August 2018. This study used Factorial Pattern Randomized Block Design with two factors. The first factor is city waste compost and the second factor is cattle manure with 4 levels: 0%, 3.0%, 6.0%, and 9.0%, repeated twice. The results showed that there was an independent influence between city waste compost and cattle manure on plant height and number of leaves. The best combination to increase the feasibility weight of pakcoy consumption is by giving city waste compost 9.0% (S4) and cattle manure 6.0% (K3).


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