scholarly journals PEMATANGAN GONAD INDUK ABALON Haliotis squamata MELALUI PENGELOLAAN PAKAN

2016 ◽  
Vol 5 (3) ◽  
pp. 383
Author(s):  
Ibnu Rusdi ◽  
Riani Rahmawati ◽  
Bambang Susanto ◽  
I Nyoman Adiasmara
Keyword(s):  
Body Weight ◽  
Gonadal Development ◽  
Daily Growth ◽  
Gonadal Maturation ◽  
In The Wild ◽  
Absolute Growth ◽  
Flow Through ◽  
Herbivorous Animal ◽  
Average Size ◽  
Plastic Containers

Abalon merupakan hewan yang bersifat herbivora di alam memakan berbagai jenis makroalga. Penelitian ini bertujuan untuk mengetahui pengaruh berbagai makroalga sebagai pakan terhadap perkembangan gonad abalon Haliotis squamata. Dalam penelitian ini diterapkan 4 perlakuan pemberian pakan yaitu: (A) Gracilaria sp., (B) Ulva sp., (C) Sargassum sp., (D) Kombinasi Gracilaria sp. + Ulva sp. + Sargassum sp. (rasio 1:1:1). Rancangan yang digunakan adalah rancangan acak lengkap masing-masing dengan 3 ulangan. Induk-induk abalon dipelihara dalam 12 buah kontainer plastik berlubang ukuran 0,58 m x 0,39 m x 0,31 m dan ditempatkan dalam sebuah bak semen ukuran 3 m x 2 m x 1 m. Setiap kontainer berisi abalon sebanyak 10 ekor dengan ukuran awal rata-rata panjang cangkang dan bobot masing-masing 58,9±1,37 mm dan 36,1±4,06 g. Pakan diberikan dengan dosis 15%-20% dari bobot biomassa setiap 2 hari sekali. Pergantian air menggunakan sistem sirkulasi dengan debit 5-6 L/menit. Hasil penelitian menunjukkan bahwa rata-rata pertumbuhan bobot mutlak dan laju pertumbuhan bobot harian berbeda nyata (P<0,05) antar perlakuan. Tingkat kematangan gonad (TKG) induk abalon pada hari ke-70 diperoleh TKG-III tertinggi dihasilkan pada perlakuan kombinasi Gracilaria + Ulva sp. + Sargassum sp. (P<0,05). Perlakuan pakan kombinasi Gracilaria sp. + Ulva sp. dan Sargassum sp. terlihat lebih sesuai dalam memacu pematangan gonad induk abalon H. squamata. Abalone is a herbivorous animal which consumes various kinds of macroalgae in the wild. The aim of the study was to study the effects of various kinds of macroalgae on gonadal maturation of abalone, Haliotis squamata. The experiment applied four kinds of macroalgae i.e.: (A) Gracilaria sp.; (B) Ulva sp.; (C) Sargassum sp.; and (D) Combination of Gracilaria sp. + Ulva sp. + Sargassum sp. (ratio 1:1:1) as food for abalone broodstock. The experiment was arranged in complete random design with three replications. One cemented tank of 3 m x 2 m x 1 m in size was used for the observation. Twelve plastic containers of 0,58 m x 0,39 m x 0,31 m in size were placed in the tank and stocked with 10 abalones per container with the average size of shell length and body weight were 58.9±1.37 mm and 36.1±4.06 g, respectively. For each treatment, macroalgae was given daily with the dosage between 15% and 20% from the total of body weight. Water exchange was done using flow-through system with rate of exchange of 5-6 L/minute. The result of the study showed that the average of absolute growth and daily growth rate of abalones were significantly different (P<0.05) among treatments. The observation of gonadal development of abalone broodstocks on day-70 revealed that the latest stage III of gonadal maturation was achieved by the broodstock fed with combination treatment of Gracilaria sp. + Ulva sp. + Sargassum sp. (P<0.05). Combination of macroalgae from this treatment was clearly  able to stimulate gonadal maturation of H. squamata broodstock.

scholarly journals GONADAL DEVELOPMENT OF DOMESTICATED CORAL TROUT (Plectropomus leopardus) REARED IN FLOATING NET CAGE

2014 ◽  
Vol 6 (1) ◽  
Author(s):  
Sari BM Sembiring ◽  
R Andamari ◽  
A Muzaki ◽  
I K Wardana ◽  
J H Hutapea ◽  
...  
Keyword(s):  
Body Weight ◽  
Research And Development ◽  
Gonadal Development ◽  
Development Stage ◽  
Gonad Maturation ◽  
Gonadal Maturation ◽  
Coral Trout ◽  
Net Cage ◽  
Plectropomus Leopardus ◽  
Maturation Index

<p>Research on Coral trout breeding has been started since 2002 at the Institute of Mariculture Research and Development and currently some hatcheries are being developed around the institute using natural broodstock. To promote the success on this breeding program, it is necessary to study the reproduction development of domesticated coral trout. The fishes were reared in floating net cage. Observation were conducted on 163 fishes in June 2013 with body weight range from 710 -2020 g (average of 1.393 g) and total length with range of 34-49.5 cm. Fishes were dissected and taken  out their gonad for histology preparedness. Histology analyses found that there were 156 female, 2 hermaprodite, 2 male, and 3 unidentified fishes. All female fishes were on early gonadal development (stage I and II with gonadal maturation index of observed coral trout ranged from 0.1 to 1.83). Further analyses showed that several different stages of gonad were found in the same gonad and concluded that coral trout was multiple spawnning order (asynchrounous). Based on the data above, it was concluded that gonad maturation of Coral trout is able to develop in domestication system in floating net cage.</p> <p>Keywords: Gonad, Coral trout (Plectropomus leopardus), hystology, floating net cage</p>

scholarly journals ПРОДУКТИВНІСТЬ ТА ЗАБІЙНІ ЯКОСТІ ПЕРЕПЕЛІВ ПРИ РІЗНИХ РІВНЯХ ГУАНІДИНОЦТОВОЇ КИСЛОТИ В РАЦІОНАХ

2016 ◽  
Vol 6 (3) ◽  
pp. 266-274
Author(s):  
M. Yu. Sychov ◽  
H. I. Pryumak
Keyword(s):  
Body Weight ◽  
Feed Additives ◽  
Carcass Quality ◽  
Feed Conversion ◽  
Daily Growth ◽  
Relative Growth ◽  
Guanidinoacetic Acid ◽  
Absolute Growth ◽  
The Absolute ◽  
Different Levels

<p>The authors have investigated the effect of different levels guanidinoacetic acid in the diets of quails on their productivity and carcass quality. Experimental studies were carried out in the conditions of the problematic research laboratory of feed additives in the National University of Life and Environmental Sciences of Ukraine. Material for scientific and economic experience was quail of Pharaoh species of meat direction of productivity. The experiment was carried out by method of groups-analogues. Compound feed were fed in dry crumbled form. Young animals were fed in a group. The daily amount of compound feed was divided in two parts – morning and evening rations. The effect of using different levels of Guanidinoacetic Acid (GAA) in compound feed on productivity and carcass quality of young quails was studied. We have found that compound feed with the level of GАА 0.06% contributes to live body weight increase by 3.9 g and muscles of the pelvic limbs yield by 26.2%. At the same time, use of diets with a level of 0.12% of guanidine acetate increases live weight by 13.5 g, the absolute growth of 6.5 g, average daily growth by 0.9 g, a relative growth of 2%, the mass of carcass, semi-eviscerated carcass, and eviscerated carcass of 4.8, 4.9 and 4.3% correspondingly, slightly increases the mass of pectoral muscles by 9.1%, significantly increases the yield of muscles of the pelvic limbs by 36.4%, and reduces feed conversion by 5%. Poultry which was fed with 0.18% of GАА exceeded control of body weight by 12.2 g, the absolute growth by 4.4 g, average daily growth by 0.6 g, the relative growth by 1.1%, yield of muscles of the pelvic limbs by 36.4% and  had a lower feed conversion rate by 9.1%. During the study period the safety of livestock which was fed with GААvwas high and ranged from 90 to 96%.  It was established the perspective of further research, which is to examine the impact of Guanidinoacetic Acid on the egg production of egg-laying quails, morphological and chemical composition of eggs and  their hatching  quality.</p>

scholarly journals REARING OF JUVENILE DONKEY-EAR ABALONE (Haliotis asinina) IN FLOW-THROUGH TANKS WITH THE ADDITION OF DIFFERENT SUBSTRATES

2015 ◽  
Vol 40 (1) ◽  
pp. 17-22
Author(s):  
Dwi Eny Djoko Setyono
Keyword(s):  
Body Weight ◽  
Growth Rates ◽  
Shell Length ◽  
Sea Water ◽  
Survival Rates ◽  
Water System ◽  
Daily Growth ◽  
Coral Rubble ◽  
Haliotis Asinina ◽  
Flow Through

This study investigated the effects of the addition of coral rubble and polyvinylchloride (PVC) guttering as substrates on the growth of donkey-ear abalone (Haliotis asinina) reared in a flow-through water system. The tanks were100 cm long x 50 cm wide x 40 cm deep, filled with sea water up to 30 cm high. Hatchery-produced abalone with a mean initial shell length of 30.9 ± 0.1 mm and wet weight of 5.5 ± 0.1 g were stocked at 25 individuals/tankthat corresponded to stocking densities of ca. 50 abalone/m2 of the bottom area of the tank. Juvenile abalonewere provided with an excess red seaweed Gracilaria spp daily over 175 days. The results show that growth and growth rates in shell length and wet body weight were not significantly different between treatments (P>0.05). Survival rates of juveniles reared in the tank with the addition of coral rubble and/or PVC guttering were 100%, but 98% for juveniles in the tank without the addition of substrate. The average daily growth rates of shell length and wet body weight were 0.087+0.037 mm and 0.088+0.044 g for juveniles reared in the tank with the addition of coral rubble; 0.081+0.030 mm and 0.077+0.032 g for juveniles reared in the tank with the addition of PVC guttering; and 0.082+0.032 mm and 0.078+0.039 g for juveniles reared in tank without addition of substrates.

GONADAL DEVELOPMENT OF DOMESTICATED CORAL TROUT (Plectropomus leopardus) REARED IN FLOATING NET CAGE

2014 ◽  
Vol 6 (1) ◽  
Author(s):  
Sari BM Sembiring ◽  
R Andamari ◽  
A Muzaki ◽  
I K Wardana ◽  
J H Hutapea ◽  
...  
Keyword(s):  
Body Weight ◽  
Research And Development ◽  
Gonadal Development ◽  
Development Stage ◽  
Gonad Maturation ◽  
Gonadal Maturation ◽  
Coral Trout ◽  
Net Cage ◽  
Plectropomus Leopardus ◽  
Maturation Index

Research on Coral trout breeding has been started since 2002 at the Institute of Mariculture Research and Development and currently some hatcheries are being developed around the institute using natural broodstock. To promote the success on this breeding program, it is necessary to study the reproduction development of domesticated coral trout. The fishes were reared in floating net cage. Observation were conducted on 163 fishes in June 2013 with body weight range from 710 -2020 g (average of 1.393 g) and total length with range of 34-49.5 cm. Fishes were dissected and taken  out their gonad for histology preparedness. Histology analyses found that there were 156 female, 2 hermaprodite, 2 male, and 3 unidentified fishes. All female fishes were on early gonadal development (stage I and II with gonadal maturation index of observed coral trout ranged from 0.1 to 1.83). Further analyses showed that several different stages of gonad were found in the same gonad and concluded that coral trout was multiple spawnning order (asynchrounous). Based on the data above, it was concluded that gonad maturation of Coral trout is able to develop in domestication system in floating net cage. Keywords: Gonad, Coral trout (Plectropomus leopardus), hystology, floating net cage

IMPLANTATION OF LHRH-a HORMONE TO STIMULATION OF GONAD DEVELOPMENT OF HUMPBACK GROUPER SECOND GENERATION ( F-2 )

2013 ◽  
Vol 5 (2) ◽  
Author(s):  
Tridjoko Tridjoko
Keyword(s):  
Body Weight ◽  
Second Generation ◽  
Gonad Development ◽  
Gonadal Development ◽  
Oocyte Diameter ◽  
2Nd Generation ◽  
Length Range ◽  
Concrete Tank ◽  
Implant Treatment ◽  
Stimulation Of

This study aimed to determine the effect of LHRH-a hormone implantation on gonadal development of humpback grouper, Cromileptes altivelis 2nd generation (F-2). Individuals used were 20 female grouper fish with weight range of 600-800 gram/fish and total length range of 28.0-30.0 cm. The treatment used 5 fish each with tagging. Grouper fishes were stocked into the 75 m3 circular concrete tank. Hormone of LHRH-a with dosage of 50 μg/kg body weight was used as implant treatment of (A) 1 time,, (B) 2 times, (C) 3 times, and (D) without implant. The results showed that implantation of LHRH-a hormone were significantly stimulate gonad development of humpback grouper second generation (F-2). Treatment of 3 times implant every month showed the best results produced  oocyte diameter up to 480 μm, while the control of oocyte diameter only reached <400 μm. Keywords: LHRH-a hormone, implantation, Humpback grouper, gonad development

scholarly journals Improved Trapping and Handling of an Arboreal, Montane Mammal: Red Panda Ailurus fulgens

Animals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 921
Author(s):  
Damber Bista ◽  
Sonam Tashi Lama ◽  
Janno Weerman ◽  
Ang Phuri Sherpa ◽  
Purushotam Pandey ◽  
...  
Keyword(s):  
Body Weight ◽  
Success Rate ◽  
Body Length ◽  
Tail Length ◽  
Morphometric Data ◽  
Field Identification ◽  
Red Panda ◽  
In The Wild ◽  
Chest Girth ◽  
Ailurus Fulgens

It is sometimes essential to have an animal in the hand to study some of their ecological and biological characteristics. However, capturing a solitary, cryptic, elusive arboreal species such as the red panda in the wild is challenging. We developed and successfully tested a protocol for tracking, trapping, immobilization, and handling of red pandas in the wild in eastern Nepal. We established a red panda sighting rate of 0.89 panda/day with a capture success rate of 0.6. We trapped and collared one animal in 3.7 days. On average, we took nearly 136 (range 50–317) min to capture an animal after spotting it. Further processing was completed in 38.5 (21–70) min. Before capture, we found it difficult to recognize the sex of the red panda and to differentiate sub-adults above six months from adults. However, body weight, body length, tail length, shoulder height, and chest girth can be used for diagnosis, as these attributes are smaller in sub-adults. Our method is a welfare-friendly way of trapping and handling wild red pandas. We report new morphometric data that could serve as a guide for field identification.

A comparative study on the nursery culture of hatchery-reared sub-adult cupped oyster, Crassostrea iredalei (Faustino, 1932), in an earthen pond and a mangrove canal

2018 ◽  
Vol 26 (4) ◽  
pp. 217-222
Author(s):  
Premwadee Chueachat ◽  
Woraporn Tarangkoon ◽  
Suwat Tanyaros
Keyword(s):  
Growth Rate ◽  
Comparative Study ◽  
Condition Index ◽  
Daily Growth ◽  
Nursery Culture ◽  
Absolute Growth Rate ◽  
Significant Difference ◽  
Adult Oyster ◽  
Absolute Growth ◽  
The Mean

Abstract A comparative study on the nursery culture of the spat of the tropical oyster, Crassostrea iredalei, in an earthen pond and a mangrove canal was conducted over two months. The results revealed no differences in the absolute growth rate determined by shell width between the two culture sites (P < 0.05). Sub-adult oysters cultured in the mangrove canal showed a higher absolute growth rate in shell length and a higher daily growth rate than the oysters cultured in the earthen pond (P < 0.05). The mean survival rate of sub-adult oysters cultured in the earthen pond (99.8 ± 0.2%) was significantly higher than for those cultured in the mangrove canal (66.7 ± 31.4%). Decreased density from the loss of sub-adult oyster nursery culture in the mangrove canal led to higher growth performance than in the earthen pond. However, no difference was found for the fraction of oysters larger or smaller than 5 cm for the two culture sites (P < 0.05). A significant difference was noted in the Condition Index (CI) between the two culture sites (P < 0.05). The high primary productivity in mangroves is a major supporter of higher CI in sub-adult oysters cultured in mangrove canals versus in earthen ponds. Water exchange in the earthen pond to maintain calcium and magnesium concentrations resulted in no differences in the shell compressibility of sub-adult oysters compared with those cultured in the mangrove canal.

Abstract 064: 20-HETE Contributes to Vasoconstriction of Renal Microvessels and Sodium Retention in Cyp4a14-/- Mice, a Model of 20-HETE Dependent Hypertension

Hypertension ◽  
2015 ◽  
Vol 66 (suppl_1) ◽  
Author(s):  
Ankit Gilani ◽  
Varunkumar Pandey ◽  
Joseph Zullo ◽  
Priyanka Mishra ◽  
John R Falck ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Body Weight ◽  
Isotonic Saline ◽  
Urinary Sodium Excretion ◽  
Water Soluble ◽  
Arachidonic Acid Metabolite ◽  
Male Mice ◽  
Kidney Weight ◽  
Doppler Flowmetry ◽  
In The Wild

20-HETE (20-Hydroxyeicosatetraenoic acid), is a cytochrome P450 (CYP) 4A-derived arachidonic acid metabolite. 20-HETE has been linked to both pro-hypertensive (via increased vasoconstriction, vascular remodeling and vascular injury of renal microvessels) and anti-hypertensive (inhibiting ion transport in the distal nephron) functions. In this study we examined the effect of 20-SOLA (2,5,8,11,14,17-hexaoxanonadecan-19-yl-20-hydroxyeicosa-6(Z),15(Z)-dienoate), a water soluble antagonist of the actions of 20-HETE on renal hemodynamics and sodium (Na) excretion in Cyp4a14 knockout (CYP4a14-/-) male mice. The CYP4a14-/- male mice display hypertension accompanied by increased vascular 20-HETE levels. Administration of 20-SOLA (10mg/kg/day in drinking water) normalized blood pressure (BP) in male Cyp4a14-/- mice at day 10 of treatment (124±1 vs. 153±2 mmHg in untreated male Cyp4a14-/- mice; p<0.05). The normalization of blood pressure was accompanied by transient increase in the urinary sodium excretion in the Cyp4a14-/- male mice (8.3±0.7 vs. 5.8±0.5 μmol/g body weight/day; p<0.05). Importantly, 20-SOLA increased glomerular filtration rate (GFR) of Cyp4a14-/- mice (2.38±0.05 vs. 1.88±0.18 μL/min/mg kidney weight, p<0.05) as opposed to no changes observed in the wild type (WT: (2.26±0.18 vs. 2.33±0.20μL/min/mg kidney weight). Evaluation of the renal blood flow (RBF) by laser Doppler flowmetry showed that treatment with 20-SOLA increased the RBF in Cyp4a14-/- mice by 12.3±4%, which remained unaltered in the WT. Additionally, the pressure-induced myogenic tone of isolated preglomerular microvessels was significantly elevated in Cyp4a14-/- mice; 20-SOLA treatment prevented the increase in myogenic responses. The natriuretic response to an isotonic saline loading challenge (10% of body weight, IP) was significantly attenuated in the Cyp4a14-/- mice as compared to the WT (35.5±2.8 vs. 57.4±8.3 percentage of Na load, p<0.05); this was corrected by 20-SOLA (61.7±5.7 percentage of Na load, p<0.05). These results confirm that 20-SOLA normalizes blood pressure of Cyp4a14-/- male mice and demonstrates that this is associated with increases in GFR, RBF and natriuresis.

scholarly journals Sexual dimorphism in the squirrel monkey, Saimiri sciureus (Linnaeus, 1758) and Saimiri ustus (I. Geoffroy, 1844) (Primates, Cebidae)

2009 ◽  
Vol 69 (1) ◽  
pp. 171-174 ◽  
Author(s):  
B. Goldschmidt ◽  
A. Mota-Marinho ◽  
C. Araújo-Lopes ◽  
MA. Brück-Gonçalves ◽  
D. Matos-Fasano ◽  
...  
Keyword(s):  
Body Weight ◽  
Sexual Dimorphism ◽  
Squirrel Monkey ◽  
Coat Color ◽  
Morphological Characters ◽  
Saimiri Sciureus ◽  
External Ear ◽  
Adult Females ◽  
In The Wild ◽  
Capture Techniques

Causes and implications of sexual dimorphism have been studied in several different primates using a variety of morphological characters such as body weight, canine length, coat color and ornamentation. Here we describe a peculiar coat color characteristic in the squirrel monkey that is present only in adult females over five years old and which increases with age. Neither males nor young animals manifest this phenomenon, which is characterized by a spot of black hairs located anteriorly to the external ear (pinna). This characteristic could be used to discriminate adult females of Saimiri sciureus in the wild without the need of capture techniques.

scholarly journals PENGARUH SUBSTITUSI TEPUNG IKAN DENGAN TEPUNG KEPALA IKAN PATIN (Pangasius sp) TERHADAP PERTUMBUHAN IKAN LELE SANGKURIANG (Clarias sp)

2018 ◽  
Vol 6 (2) ◽  
pp. 129-140
Author(s):  
Yesica Manullang ◽  
Limin Santoso ◽  
Tarsim .
Keyword(s):  
Growth Rate ◽  
Fish Meal ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Protein Retention ◽  
Weight Growth ◽  
Randomized Design ◽  
Absolute Growth ◽  
Completely Randomized Design ◽  
Difference Test

ABSTRACTThe research was conducted at the Aquaculture Laboratory, University of Lampung in May to July,  2018. The aim of this study is to determine the effect of substitution of fish meal with catfish head flour on the growth of catfish, and head flour dosage the best for catfish growth. The study used a Completely Randomized Design with 3 treatments and 3 replications A (100% fish meal), B (70% fish meal and 30% catfish flour), and C (40% fish meal and 60% catfish flour). Parameters observed included absolute growth, daily growth rate, protein retention, feed convertion ratio (FCR), survival rate (SR), and supporting parameters that is feed cost and water quality. The data obtained were analyzed by variance and continued with smallest real difference test with a 95% confidence level. The results showed that the proportion of catfish head flour in artificial feed had an effect on absolute weight growth and daily growth rate (P, 0.001). The proportion of the use of 30% starch in the feed of catfish has a real influence on absolute growth (40.25 ± 5.67 g), and daily growth rate (0.67 ± 0.09 g/day).Keywords : Catfish, catfish head waste, substitution, feed, growth

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