Further Results of Tagging Sea Mullet, Mugil cephalus Linnaeus, on the Eastern Australia Coast

1953 ◽  
Vol 4 (2) ◽  
pp. 251 ◽  
Author(s):  
GL Kesteven
Keyword(s):  
Growth Rate ◽  
The Other ◽  
Young Fish ◽  
Scale Growth ◽  
Average Growth Rate ◽  
Average Growth ◽  
Scale Reading ◽  
Eastern Australia ◽  
Rivers And Lakes

An account is given of tagging operations in eastern Australian waters on sea mullet. The operations involved fish of wide age and size ranges in a variety of habitats and localities, in all months of the year except July. The recoveries from these operations are analysed for information on movement, growth, and mortality. The results show the movement of the tagged fish to be predominantly northwards and require a postulate that southward movement takes place among the young fish (and possibly eggs). The movement of individual fish can be quite rapid and cover long distances, and each fish probably migrates a number of times during its lifetime. The proportion of the population involved in these movements probably exceeds 50 per cent. The results show that there is on the coast one continuous stock of this species, of which the populations occupying the numerous rivers and lakes constantly intermingle. Confirmation was obtained of the earlier workeon the technique of scale reading in this species, and of the general results on average growth rate. Growth occurs chiefly in summer, but possibly also in the latter part of spring and the early part of autumn. The physiology of scale growth and trhe formation of annual "breaks" are discussed. Proportional recoveries from each operation are reported but these cannot serve well a s an index of intensity of fishing. On the other hand, the longevity of the tags serves to indicate the probable life expectancy of these groups of fish; this is estimated as slightly more than 3 yr.

scholarly journals Performance and nutrient utilization of rabbits fed diets based on crop residues fermented with Rhizopus oligosporus

2021 ◽  
Vol 39 (1) ◽  
pp. 114-111
Author(s):  
A. O. Adedire ◽  
O. O. Oduguwa ◽  
M. O Edema ◽  
O. S. Onifade ◽  
C. F. I. Onwuka
Keyword(s):  
Growth Rate ◽  
Feed Efficiency ◽  
Crop Residues ◽  
Nutrient Utilization ◽  
The Other ◽  
Corn Cob ◽  
Rhizopus Oligosporus ◽  
Crude Fibre ◽  
Average Growth Rate ◽  
Average Growth

This study was conducted to evaluate the performance and nutrient utilization of rabbits fed diets containing corn cob and cowpea husk incubated with Rhizopus oligosporus. A total of twenty four rabbits were assigned to four groups, each divided into three groups of two rabbits per replicate. Four experimental diets containing fermented and unfermented crop residues were formulated. The fermented crop residues were incubated with Rhizopus oligosporus and were allowed to ferment for 48hours. The proximate composition as well as the fibre fractions of the fermented and unfermented crop residues was determined. The experiment was arranged in a 2x2 factorial design and was analysed using analysis of variance. The result indicated that average growth rate of rabbits fed fermented cowpea husk were higher numerically than those fed the other diets. The average weekly feed intake was significantly (p<0.05) affected by the weight gain. Feed efficiency and protein efficiency ratios were not significantly (p>0.05) affected by fibre sources while fermentation did not impose any significant impact on these parameters. Rhizopus fermentation improved the performance and utilization of crude fibre, phosphorus, ADF and NDF by rabbits fed corn cob and cowpea husk. It was concluded that corn cob and cowpea husk possessed the potential as fibre sources in rabbit ration.

scholarly journals PERFORMANCE EVOLUTION OF JAMMU AND KASHMIR STATE FINANCIAL CORPORATION

2021 ◽  
Vol 9 (08) ◽  
pp. 647-650
Author(s):  
Maryama Gul ◽  
◽  
P.K. Sanse ◽  
Keyword(s):  
Growth Rate ◽  
Trend Analysis ◽  
Ratio Analysis ◽  
Average Growth Rate ◽  
Jammu And Kashmir ◽  
Average Growth ◽  
Research Period ◽  
Study Performance

The objective of this study was to assess the performance of JK SFC. The establishment of State financial Corporations was, one of the steps taken, at the official level to promote the growth of small and mediumscale industries. The Jammu and Kashmir State Financial Corporation is a statutory Corporation established under SFCs Act 1951(Central Act 63 of 1951) which is facing heavy losses due to no source of funds and no recovery of loans. In the present study performance of JKSFC was analyzed with different tools like trend analysis and ratio analysis and average growth rate. The results of the study show that performance of JKSFC is declining during the research period due tofacing problems of liquidity & solvency.

scholarly journals Cambodia: Subprime Degrees?

2013 ◽  
pp. 15-16 ◽  
Author(s):  
David Ford
Keyword(s):  
Higher Education ◽  
Growth Rate ◽  
Private Institutions ◽  
Average Growth Rate ◽  
Average Growth ◽  
Branch Campuses ◽  
The Past ◽  
New Institutions

The Cambodian economy has achieved a healthy average growth rate of about 7 percent, over the past decade. Higher education has expanded more than tenfold, in the same period, and now includes 91 institutions (68 universities and 23 institutes or schools) of which 59 percent are private institutions, and almost 200,000 students. Access has improved greatly, as many new institutions and branch campuses of existing institutions have opened in provincial centers.

Growth and carcass characteristics of crossbred lambs in various production systems

2012 ◽  
Vol 52 (5) ◽  
pp. 373 ◽  
Author(s):  
N. M. Fogarty ◽  
J. G. Mulholland
Keyword(s):  
Growth Rate ◽  
Production Systems ◽  
Growth Traits ◽  
Carcass Weight ◽  
Wagga Wagga ◽  
Hybrid Vigour ◽  
Average Growth Rate ◽  
Lower Growth ◽  
Average Growth ◽  
Lamb Growth

Lamb growth, carcass and pelt measurements are reported from 5775 lambs born to Border Leicester × Merino (BLM) and Hyfer (Dorset × Merino composite) ewes joined to Dorset, Suffolk and Hyfer rams in three lamb-production systems at Cowra and Wagga Wagga over 5 years. The production systems involved lambings at different seasons of the year and increasing levels of intensification from autumn annual joining, spring joining with a backup mating for non-pregnant ewes, to an accelerated 8-monthly lambing system. Lambs from BLM ewes were 0.7 kg heavier at birth and grew 3% faster and reached slaughter, at 18 kg carcass weight, 1–2 weeks earlier than did lambs from Hyfer ewes (P < 0.01). The advantage in growth rate of lambs from BLM compared with Hyfer ewes was greater for lambs born in November. These lambs had poorer growing conditions over the summer months, with 22% lower growth rate and taking 5 weeks longer to reach slaughter than did lambs born in March or August. There was no difference between Dorset and Suffolk sire breeds for any lamb growth traits, with lambs from Hyfer sires growing 7% slower. Ram and cryptorchid lambs reached slaughter 1 week earlier than did wethers, with ewes a further 9 days later (P < 0.01). Sex differences were maximised when lamb growth was greatest. There were no differences in carcass fat measurements between ram and cryptorchid lambs, although both were considerably leaner than wethers (2.2–3.0 mm fat at the GR site), which were 1.3–2.1 mm leaner than ewes at 18-kg carcass weight. The range in average growth rate of progeny of the BLM ewes from the 12 different source flocks at Cowra and Wagga Wagga was 10–14% of the mean which was twice the difference in average growth rate of progeny from the BLM and Hyfer dams. There was also significant variation among the BLM source flocks for carcass fat measurements. Lamb progeny from the different sire- and dam-breed combinations had varying levels of heterozygosity. There appears to be little loss of heterosis or hybrid vigour for lamb growth, although the sire breed × dam breed interaction was significant (P < 0.01) for age at slaughter at Wagga Wagga, in which the ranking of the lamb types was consistent with the levels of heterozygosity. The estimates of between-lambing repeatability for the ewes were highest for birthweight (0.35 Cowra and 0.27 Wagga Wagga) and declined at later ages (0.26–0.17), with lower estimates for carcass traits.

Performance of young breeding cattle in commercial herds in the south-west of Western Australia. 3. Calf growth, dystocia, and their relationship with production and fertility measurements in first-calf heifers

1991 ◽  
Vol 31 (4) ◽  
pp. 455 ◽  
Author(s):  
GJ Sawyer ◽  
DJ Barker ◽  
RJ Morris
Keyword(s):  
Growth Rate ◽  
Birth Weight ◽  
Western Australia ◽  
The South ◽  
Average Growth Rate ◽  
Average Growth ◽  
Calf Growth ◽  
South West ◽  
Condition Score ◽  
Recorded Data

The preweaning growth of the progeny from 2531 first-calf heifers calving on commercial properties in the south-west of Western Australia was studied over 5 years. Animals included the progeny of Angus sires mated to Angus, Angus x Friesian, Simford, Hereford and Beef Shorthorn crossbred heifers; the progeny of Hereford sires mated to Hereford, Hereford x Friesian, and Beef Shorthorn crossbred; and those of Devon crossbred, Simford or Wokalup multibreed heifers mated inter se. Calves were born between mid January and July of each year and date of birth, calving information and calf growth through to weaning at an average age of 230 days were recorded. Data recorded on the calves' dams included regular liveweight and condition score assessment and the date of second calving. Angus-sired calves were lighter at birth than Hereford-sired calves; breed means ranged from 25.1 kg for purebred Angus to 33.2 kg for Wokalup multibreeds, with male calves weighing 1.4 kg more than females at birth. Calf birth weight was positively and linearly related to weight of dam at the beginning of joining. Breed of calf, sex of calf, year of birth, day of the year born, liveweight and liveweight change of the dam at the beginning of rejoining all significantly influenced calf growth, with up to 64% of variation accounted for. At 50 days of age, Devon crossbreds, Simfords and Wokalup multibreeds were significantly heavier than crossbred Hereford or Angus calves, and this trend persisted until weaning. The average growth rate to 200 days of Angus calves was 0.113 kg/day slower, and Hereford calves 0.77 kg/day slower, than the average growth rate of their respective crossbred calves. Heaviest 200-day weights were found in Devon crossbred (235 kg), Simford (221 kg) and Wokalup multibreed (219 kg) calves. A strong seasonal influence on calf growth was detected. Each 1 day increase in calf age in calves born between mid January and June resulted in 0.29 kg extra liveweight at 100 days and 0.68 kg extra liveweight at 200 days of age. Overall, the liveweight of the dam at the beginning of re-joining was positively associated with calf growth, with 0.119 kg of calf liveweight/kg dam liveweight at 100 days and 0.123 kg at 200 days. There was less effect of dam liveweight in Herefords and Hereford x Friesians on calf growth to 200 days, but this relationship was closer in faster growing and later maturing breeds, including Angus x Friesian, Simford, and Wokalup multibreed. The dairy crossbreeds generally lost weight at the beginning of re-joining, resulting in a negative association between this weight change and calf growth to 100 days. No assistance was required in 93% of calvings and the highest incidence of dystocia corresponded with the highest birth weight calves in Wokalup multibreeds. The most common calving difficulty was an apparently slow birth where no assistance was given, resulting in a stillborn calf. Male calves experienced 3 times the level of dystocia recorded for female calves. There was no association detected between dystocia and dam liveweight subsequent to calving. The study highlighted the importance of dam breed, liveweight and condition of the dam and timing of calving as important influences on the growth of progeny reared by first-calf heifers.

scholarly journals Effects of salinity changes on growth performance and survival of climbing perch, Anabas testudineus (Bloch, 1795)

2016 ◽  
Vol 25 (1) ◽  
pp. 65-73
Author(s):  
Faijun Nahar ◽  
Wahida Haque ◽  
Dewan Ali Ahsan ◽  
Md Ghulam Mustafa
Keyword(s):  
Growth Rate ◽  
Growth Performance ◽  
Specific Growth ◽  
Control Group ◽  
Feed Conversion ◽  
Average Growth Rate ◽  
Anabas Testudineus ◽  
Average Growth ◽  
Climbing Perch ◽  
Cultured Fish

An experiment was carried out to find the salinity tolerance capability and growth performance of Climbing Perch, Anabas testudineus (Bloch, 1795). Anabas testudineus commonly cultured fish in Bangladesh was reared in laboratory conditions at different salinities of 0, 3, 6, 9, 12, 15, 18 and 21‰ for 60 days. Hundred per cent survivals were detected at 0, 3, 6 and 9‰ salinity while 100% mortality was recorded at 18 and 21‰ salinity. Various responses to threat and feeding were observed among the fish in different treatments. Lowest feed conversion ratio was found in the control group while the highest was detected at 15‰ salinity. On the other hand, decreasing trend of specific growth and average growth rate were observed in A. testudineus fingerlings from 0 to 15‰ salinity. Significantly higher specific growth rate and average growth rate were detected in A. testudineus fingerlings reared at 0 - 6‰ salinity (p < 0.05). The present study suggests that Climbing Perch fingerlings can be reared at fresh water growth rates in coastal water with salinity up to 6‰.Dhaka Univ. J. Biol. Sci. 25(1): 65-73, 2016

scholarly journals The rebirth and evolution of Bezymianny volcano, Kamchatka after the 1956 sector collapse

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Alina V. Shevchenko ◽  
Viktor N. Dvigalo ◽  
Thomas R. Walter ◽  
Rene Mania ◽  
Francesco Maccaferri ◽  
...  
Keyword(s):  
Growth Rate ◽  
Numerical Modeling ◽  
Volcanic Activity ◽  
Summit Crater ◽  
Sector Collapse ◽  
Average Growth Rate ◽  
Average Growth ◽  
Bezymianny Volcano ◽  
Lava Domes

Abstract Continued post-collapse volcanic activity can cause the rise of a new edifice. However, details of such edifice rebirth have not been documented yet. Here, we present 7-decade-long photogrammetric data for Bezymianny volcano, Kamchatka, showing its evolution after the 1956 sector collapse. Edifice rebirth started with two lava domes originating at distinct vents ~400 m apart. After 2 decades, activity became more effusive with vents migrating within ~200 m distance. After 5 decades, the activity focused on a single vent to develop a stratocone with a summit crater. We determine a long-term average growth rate of 26,400 m3/day, allowing us to estimate the regain of the pre-collapse size within the next 15 years. Numerical modeling explains the gradual vents focusing to be associated with loading changes, affecting magma pathways at depth. This work thus sheds light on the complex regrowth process following a sector collapse, with implications for regrowing volcanoes elsewhere.

More on the Dynamics of Agricultural Contribution to Economic Growth — Reply

1992 ◽  
Vol 21 (1) ◽  
pp. 75-81
Author(s):  
Edward Nissan
Keyword(s):  
Economic Growth ◽  
Growth Rate ◽  
Entire Period ◽  
Rate Data ◽  
Average Growth Rate ◽  
Annual Average ◽  
Average Growth ◽  
Period Data ◽  
Annual Average Growth Rate

In his note on my recent two articles in this journal, Professor Addington Coppin states that the results obtained for estimating agricultural contribution to economic growth in various economies are sensitive to employing annual average growth rate data, end-of-period output shares, and geometric “weights” in some of the calculations. He suggests that the results would have been more accurate by employing (1) simple percentage changes in the level variables over the entire period of consideration; (2) beginning-of-period data on output shares; and (3) arithmetic weights. This reply addresses the logic and correctness of the approach undertaken in my research that strengthen the confidence in the results offered in my articles.

On measuring average growth rate

2004 ◽  
Vol 36 (6) ◽  
pp. 637-644
Author(s):  
Galip Altinay
Keyword(s):  
Growth Rate ◽  
Average Growth Rate ◽  
Average Growth
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