scholarly journals Reproductive Performance and Larval Quality of Pond-raised Scylla serrata Females Fed Various Broodstock Diets

2001 ◽  
Vol 14 (2) ◽  
Author(s):  
O.M. MILLAMENA ◽  
J.P. BANGCAYA
Keyword(s):  
Reproductive Performance ◽  
Scylla Serrata ◽  
Larval Quality

Effects of n−3 HUFA levels in broodstock diet on the reproductive performance and egg and larval quality of the Japanese flounder, Paralichthys olivaceus

Aquaculture ◽  
2000 ◽  
Vol 187 (3-4) ◽  
pp. 387-398 ◽  
Author(s):  
Hirofumi Furuita ◽  
Hideki Tanaka ◽  
Takeshi Yamamoto ◽  
Manabu Shiraishi ◽  
Toshio Takeuchi
Keyword(s):  
Reproductive Performance ◽  
Paralichthys Olivaceus ◽  
Japanese Flounder ◽  
Larval Quality ◽  
Broodstock Diet

scholarly journals Effects of arachidonic acid supplementation in maturation diet on female reproductive performance and larval quality of giant river prawn (Macrobrachium rosenbergii)

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2735 ◽  
Author(s):  
Chanpim Kangpanich ◽  
Jarunan Pratoomyot ◽  
Nisa Siranonthana ◽  
Wansuk Senanan
Keyword(s):  
Arachidonic Acid ◽  
Reproductive Performance ◽  
Gonadosomatic Index ◽  
Macrobrachium Rosenbergii ◽  
Hepatosomatic Index ◽  
Hatching Rate ◽  
Low Salinity ◽  
Larval Quality ◽  
Dietary Treatments

The giant river prawn (Macrobrachium rosenbergii) is one of the most farmed freshwater crustaceans in the world. Its global production has been stalling in the past decade due to the inconsistent quality of broodstock and hatchery-produced seeds. A better understanding of the role of nutrition in maturation diets will help overcome some of the production challenges. Arachidonic acid (20:4 n-6, ARA) is a fatty acid precursor of signaling molecules important for crustacean reproduction, prostaglandins E and F of the series II (PGE2 and PGF2α), and is often lacking in maturation diets of shrimp and prawns. We examined the effects of ARA in a combination of different fish oil (FO) and soybean oil (SO) blends on females’ reproductive performance and larval quality. Adult females (15.22 ± 0.13 g and 11.12 ± 0.09 cm) were fed six isonitrogenous and isolipidic diets containing one of two different base compositions (A or B), supplemented with one of three levels ofMortierella alpine-derived ARA (containing 40% active ARA): 0, 1 or 2% by ingredient weight. The two base diets differed in the percentages of (FO and SO with diet A containing 2% SO and 2% FO and diet B containing 2.5% SO and 1.5% FO, resulting in differences in proportional contents of dietary linoleic acid (18:2n-6, LOA) and docosahexaenoic acid (22:6n-3, DHA)). After the eight-week experiment, prawns fed diet B with 1 and 2% ARA supplement (B1 and B2) exhibited the highest gonadosomatic index (GSI), hepatosomatic index (HSI), egg clutch weight, fecundity, hatching rate, number of larvae, and reproductive effort compared to those fed other diets (p ≤ 0.05). Larvae from these two dietary treatments also had higher tolerance to low salinity (2 ppt). The maturation period was not significantly different among most treatments (p ≥ 0.05). ARA supplementation, regardless of the base diet, significantly improved GSI, HSI, egg clutch weight and fecundity. However, the diets with an enhanced ARA and LOA (B1 and B2) resulted in the best reproductive performance, egg hatchability and larval tolerance to low salinity. These dietary treatments also allow for effective accumulation of ARA and an n-3 lcPUFA, DHA in eggs and larvae.

scholarly journals Morphology Characteristic, Growth And Survival Rate Of The Early Larval Stages Of Mud Crab, Scylla serrata (Forsskal, 1775) For The Rearing Process

2020 ◽  
Vol 8 (1) ◽  
pp. 140
Author(s):  
Chrisoetanto P. Pattirane ◽  
Bethzy J. Pattiasina
Keyword(s):  
Survival Rate ◽  
High Sensitivity ◽  
Scylla Serrata ◽  
Mud Crab ◽  
Growth And Survival ◽  
Development Stages ◽  
Larval Stages ◽  
Larval Quality ◽  
Characteristic Growth

The availability of female adult mature will continuously support mud crab hatchery to produce the best quality of larvae. Bray et al., (1990b) proposed that zoea length can be used as an index of larval quality. Larval quality is dependent on the physiology condition related to the growth and survival rate of several larval development stages (Racotta et al., 2003). The mortality in all development stages was due to the high sensitivity of larvae for the environment changes. Two aquariums and sterilized water were used in all rearing process and larvae of Scylla serrata fed once a day. It was fed by rotifer (Branchionus plicatilis) and Artemia sp on the third and fifth days. The results showed that the eye was a distinguishing characteristic between zoea I and zoea II. Development of zoea I range about 0 (zero) to fourth days and zoea II about fifth to seventh days. Observation of growth for six days indicate an increasing significantly on the fourth to sixth days. The survival rate of Scylla serrata larvae without food holds three days out. Otherwise, larvae that were fed on everyday hold seven days out. ABSTRAKKetersediaan induk yang matang telur secara berkesinambungan akan sangat mendukung usaha pembenihan kepiting bakau dalam menghasilkan larva dengan kualitas yang baik. Bray et al., (1990b) bahwa panjang zoea dapat digunakan sebagai suatu indeks kualitas larva. Selain itu, kualitas larva juga bergantung kepada kondisi fisiologis larva dan berkaitan dengan rata-rata pertumbuhan dan sintasan selama beberapa tahapan larva (Racotta et al., 2003). Seluruh proses pemeliharaan digunakan air steril dengan menggunakan wadah berupa akuarium sebanyak dua buah. Larva kepiting bakau, S. serrata selama pemeliharaan diberi pakan satu kali sehari. Pakan yang diberikan berupa rotifer (Branchionus plicatilis) dan artemia pada hari kelima dan ketiga. Hasil penelitian menunjukkan bahwa ciri morfologi pembeda antara tahap zoea I dan zoea II adalah mata. Perkembangan zoea I berkisar antara hari 0 sampai dengan hari 4 selanjutnya zoea II antara hari kelima sampai hari ketujuh. Pertumbuhan yang diamati selama masa pemeliharaan hari pertama sampai hari keenam, menunjukkan adanya peningkatan yang signifikan pada hari keempat sampai hari keenam. Tingkat kelangsungan hidup larva S. serrata yang tidak diberi pakan dapat bertahan mencapai tiga hari. Sebaliknya untuk larva yang diberi pakan selama masa pemeliharaan mampu bertahan hingga mencapai tujuh hari.Kata kunci: Larva zoea, Scylla serrata, pertumbuhan, tingkat kelangsungan hidup

The effects of nutrition on reproductive performance, lactation and carcass quality of once bred gilts

1995 ◽  
Vol 1995 ◽  
pp. 178-178
Author(s):  
A H Stewart ◽  
S A Edwards ◽  
V R Fowler
Keyword(s):  
Sugar Beet ◽  
Reproductive Performance ◽  
Feed Efficiency ◽  
Reproductive Physiology ◽  
Sugar Beet Pulp ◽  
Energy Sources ◽  
Carcass Quality ◽  
Beet Pulp ◽  
Ad Libitum

The once bred gilt system of production has a number of benefits in terms of feed efficiency and welfare, however the system relies on the production of a quality carcass and acceptable reproductive performance. Previous studies have indicated that welfare might be improved if gilts were ad-libitum fed a diet containing 60% Sugar beet pulp (Stewart et al 1993). There was a suggestion however that reproductive physiology may be put at risk using such a diet. The objective of this experiment was to identify differences in reproductive performance using two different energy sources in gestation and to manipulate nutrition during lactation to study the effect on carcass quality.

Reproductive Performance Of Bali Cattle Cross Breed Brahman Cattle Through Improving The Genetic Quality Of Local Livestock In Special Effort for Cows to be Pregnant Program

2021 ◽  
Vol 1 (1) ◽  
pp. 1-7
Author(s):  
Irwansyah ◽  
Junaedi ◽  
Suparman
Keyword(s):  
Birth Weight ◽  
Reproductive Performance ◽  
Artificial Insemination ◽  
Secondary Data ◽  
Birth Spacing ◽  
Calving Interval ◽  
Brahman Cattle ◽  
Bali Cattle ◽  
The Relationship

One of the problems that exist in the community is the lack of identification of the reproductive performance of prospective brooders of Bali cattle that are artificially inseminated. The researcher conducted a research to determine the reproductive performance of Bali Cattle inseminated with Brahman Cattle Semen in SECP (Special Effort for Cows to be Pregnant Program) Program in Kolaka Regency. The parameters observed in this study were; artificial insemination's first age (Years), How many times the artificial insemination (AI) was pregnant (S/C), Length of pregnancy (months), Calving Interval (CI) (months), Birth weight (Kilograms), Correlation of AI's first age with birth weight. Sources of date used in this study are primary and secondary data. Data collection techniques carried out in this study were observation and interviews. The date obtained was analyzed descriptively, analysis of variance, average, and to calculate the relationship between variables was analyzed by correlation. Reproductive performance of Bali Cattle inseminated with Brahman Cattle Semen in SECP Program in Kolaka district include; first age AI 23.63±1.99 months, Service per Conception (S/C) 1.56±0.55, gestational age 9.03±0.38 months, Calving Interval (CI) 12.24±0 .52 months, birth weight 27.85 ± 2.96 and the correlation between AI prime age and birth spacing was 0.77.

scholarly journals Reproductive performance and quality of offsprings of parent stock of layer hens after rearing in open and closed aviary system

2020 ◽  
Author(s):  
Krzysztof Damaziak ◽  
Marta Musielak ◽  
Cezary Musielak ◽  
Julia Riedel ◽  
Dariusz Gozdowski
Keyword(s):  
Reproductive Performance ◽  
Parent Stock ◽  
Layer Hens
Sign in / Sign up

Export Citation Format

Share Document