scholarly journals Some Observations on Relationships of the Liver, Ovary and Body Weights for Pipefish Species at the Lake Bafa Coasts (Muğla)

Author(s):  
Sule Gurkan ◽  
Ertan Taskavak ◽  
Deniz Innal

This study aims to determine various relationships between liver, gonad and body weights of the two pipefish species caught in two breeding seasons from the Bafa Lake (Muğla) coasts between 2014 -2016. Using beach seine-net in the lake, a total of 208 pipefish specimens (79 Synathus abaster and 129 Synathus acus) were sampled. L-W relationship and Fulton condition factor were W = 2E - 0.94.01, 0.035 ± 0.009 in S.abaster specimens. Also LW relationships and condition factor were W = 8E-0.93.83 , 0.033 ± 0.01 in S. acus. On the other hand mean ± SD of HSI and GSI values were 2.18 ± 1.65 and 7.69 ± 7.12 respectively. In S.acus values 3.22 ± 3.13 and 5.49 ± 5.12 as well. The decrease in HIS and K values, provides sufficient information to claim that species in the lake spend all energy requirement obtained with proper feeding to growth and gonad development.

1971 ◽  
Vol 13 (1) ◽  
pp. 7-14 ◽  
Author(s):  
M. H. Fahmy ◽  
G. Lalande ◽  
M. Hidiroglou

SUMMARYData were obtained from 27 pure Shorthorn, 22 Angus × Shorthorn, 31 Charolais × Shorthorn and 27 Hereford × Shorthorn cows, during 10 years. Angus × Shorthorn cows required the least number of services per conception (1·17), had the shortest average gestation lengths (280·6 days), and had a calving percentage of 88·2% and birth weight of calf of 29·8 kg. The respective figures for Charolais × Shorthorn were 1·21 services, 281·6 days, 88·3% (the highest) and 32·9 kg (the heaviest), for Hereford × Shorthorn 1·23 services, 283·6 days, 84·4% and 31·6 kg, and for pure Shorthorn 1·20 services, 282·2 days, 82·7% and 29·6 kg. Average calf weight at birth increased with the advance in age of cow up to 5 years, then showed little change. Seventy-two per cent of the crossbred cows calved for the first time at 2 years old compared with 65% of the Shorthorns. On the other hand, Shorthorn cows had the highest twinning percentage (2·9%) and the lowest single calf mortality at birth (1·4%). The maximum body weights of Angus, Charolais, and Hereford crossbreds and Shorthorn cows were 576·8, 655·8, 6254 and 553·8 kg respectively at 7–8 years of age.


2017 ◽  
Vol 7 (2) ◽  
pp. 49-55
Author(s):  
Pariang Siagian ◽  
Jonny ◽  
N Noerlina

The primary purpose of this paper is to examine leasing business in Indonesia, if there is any effect of leasing literacy to the access into leasing company, motivation to buy and ability to pay liabilities. The research’s object is customers of leasing companies who have been buying leasing products and live around Jakarta. While the methodology used will be the qualitative method by using survey and questionnaire. The outcomes revealed that 68.5% of respondents have the average income of less than 5 million per month, and the type of product leased is dominated by motorcycles and cars. Furthermore, the result of regression analysis is the literacy to the access into leasing company has no effect. But on the other hand, the result shows that there is an effect of literacy on motivation and ability to pay liabilities. From this study, it can be concluded that generally, customers do not care about the insight into leasing business. Most of the customers used the literacy for to get the products and to be able to pay the installments obligations. Hence, they need sufficient information about leasing company and its services.


Author(s):  
Igor Dobeš ◽  
Jan Kuchtík

The aim of our study was to evaluate the effects of chosen factors (crossbreds, sex, litter size, age of ewes and interaction between sex and litter size) on the growth of lambs crossbreds of the breeds Charollais (Ch), Suffolk (Sf) and Improved Valachian (IV). The evaluation was performed in the year 2004 on the farm Růžďka and involved altogether 96 lambs. The growth ability was evaluated at the following crossbreds: Ch x Sf (n = 28), (Ch x Sf) x Sf (n = 28), IV x Sf (n = 21) and (IV x Sf) x Sf (n = 19). All lambs under study were born indoor in January. Lambs were kept indoor till the end of the evaluation. From the evaluation of effects of crossbreds, sex and age of ewes on the live body weights and daily gains of lambs above all result that these factors showed a significant effect only on the live body weight at birth. On the other hand, the factors of litter size and interaction between sex and litter size showed a highly significant (P < 0.01) effect on the live body weights of lambs at birth, at 70 and at 100 days of age as well as on their daily gains within the intervals from birth to 70 and 100 days of age. It can be concluded that the daily gains were highly uniform but relatively low in all crossbreds under the study within the time interval from birth to the age of 100 days, while the non-significantly highest daily gain was recorded in the crossbreds of IV x Sf (211 g). On the other hand the lowest ones were observed in the crossbreds of CH x Sf and (IV x Sf) x Sf (199 g).


1978 ◽  
Vol 56 (12) ◽  
pp. 2578-2590 ◽  
Author(s):  
Martin L. Morton ◽  
Paul W. Sherman

From 30 April to 26 May 1977 a snowstorm occurred in the Sierra Nevada where we were studying Spermophilus beldingi. The storm began 8 days after ground squirrels began emerging from hibernation. During the storm, emergence nearly ceased and mating was suspended, body weights decreased sharply, locomotor abilities became impaired, and nocturnal burrow sharing increased. The animals became more susceptible to predation, and one case of intraspecific killing and cannibalism was observed. At least four animals starved; they were totally depleted of fat and had atrophied livers. During the storm, more adult females than males perished; 60% of females disappeared in 1977 vs. 32 and 26% in 1975 and 1976, respectively. Furthermore, when compared with 1975 and 1976, fewer 1977 females mated, conceived, or weaned young.During 1969–1977 at Tioga Pass, first emergence of S. beldingi varied up to 6 weeks with the animals emerging earliest in years of lightest snowpacks. At high altitudes where summers are brief, early emergence may increase the likelihood that young will reach appropriate body size before winter. On the other hand, avoidance of the effects of unpredictable spring storms favors later emergence. In 1977, because of the snowstorm, late emergers were favored.


1995 ◽  
Vol 127 (3) ◽  
pp. 443-444 ◽  
Author(s):  
Glen Chilton ◽  
Terry D. Galloway

Fleas (Siphonaptera: notably species of Ceratophyllidae) parasitize many species of birds. Although adult fleas rely on the birds as their principal means of dispersal, they are not commonly collected on the host itself. Most of these fleas spend the greatest portion of their life cycle in or near the host's nest. Colonial nesting habits facilitate transfer of fleas among hosts (Hoogland and Sherman 1976), and reuse of nests or nesting cavities in successive breeding seasons enhances transmission from one generation to the next (Hopla and Loye 1983). This stability of nest habitat and reliability of host presence favours fleas that are truly nest-bound. On the other hand, birds that defend exclusive breeding territories and construct new nests for each breeding attempt are usually host to vagabond, generalist species (Darskaya 1964).


Author(s):  
Radim Petr ◽  
Igor Dobeš ◽  
Jan Kuchtík

The main aim of the study was the evaluation of the growth, meatiness and fattiness in vivo in lambs (n = 122) of chosen breeds (CH: Charollais and T: Texel) and crossbreeds (CH x Sf (Suffolk), CH x T, EF (East Friesiane) x CH and EF x T. Whithin the frame of this study were also evaluated the effects of sex (S), litter size (LS), age of the dams (AD) and year of the observation (YO) on aforementioned indicators. The study was carried out on the farm in Kunčice pod Ondřejníkem during the years 2004 and 2005. Within the scope of evaluation of meatiness and fattiness in vivo in lambs the following ultrasound measurement were carried out: area (Am.l.l.t., in cm2) and depth (Dm.l.l.t., in mm) of musculus longissimus lumborum et thoracis (m.l.l.t.) and fat thickness (FT, in mm). Genotype had a significant effect on body weight at birth and on daily gains (DGs) from 30 to 100 days of age and from birth to 100 days of age. Sex had a significant effect on most of body weights under study and on DGs from birth to 30 days of age, from 30 to 70 days of age and from birth to 100 days of age. The LS, AD and YO had a significant effect on most of growth indicators under study. Genotype had a significant effect on Am.l.l.t. at the age of 70 days, Dm.l.l.t. and FT at the age of 100 days. The S had a significant effect on Dm.l.l.t. and Am.l.l.t. at the age of 70 days and on Am.l.l.t. at the age of 100 days. The LS and YO had a significant effect on most of indicators of meatiness and fattiness in vivo under study. On the other hand only the AD had not significant effect on all parameters of meatiness and fattiness.


1999 ◽  
Vol 173 ◽  
pp. 249-254
Author(s):  
A.M. Silva ◽  
R.D. Miró

AbstractWe have developed a model for theH2OandOHevolution in a comet outburst, assuming that together with the gas, a distribution of icy grains is ejected. With an initial mass of icy grains of 108kg released, theH2OandOHproductions are increased up to a factor two, and the growth curves change drastically in the first two days. The model is applied to eruptions detected in theOHradio monitorings and fits well with the slow variations in the flux. On the other hand, several events of short duration appear, consisting of a sudden rise ofOHflux, followed by a sudden decay on the second day. These apparent short bursts are frequently found as precursors of a more durable eruption. We suggest that both of them are part of a unique eruption, and that the sudden decay is due to collisions that de-excite theOHmaser, when it reaches the Cometopause region located at 1.35 × 105kmfrom the nucleus.


Author(s):  
A. V. Crewe

We have become accustomed to differentiating between the scanning microscope and the conventional transmission microscope according to the resolving power which the two instruments offer. The conventional microscope is capable of a point resolution of a few angstroms and line resolutions of periodic objects of about 1Å. On the other hand, the scanning microscope, in its normal form, is not ordinarily capable of a point resolution better than 100Å. Upon examining reasons for the 100Å limitation, it becomes clear that this is based more on tradition than reason, and in particular, it is a condition imposed upon the microscope by adherence to thermal sources of electrons.


Author(s):  
K.H. Westmacott

Life beyond 1MeV – like life after 40 – is not too different unless one takes advantage of past experience and is receptive to new opportunities. At first glance, the returns on performing electron microscopy at voltages greater than 1MeV diminish rather rapidly as the curves which describe the well-known advantages of HVEM often tend towards saturation. However, in a country with a significant HVEM capability, a good case can be made for investing in instruments with a range of maximum accelerating voltages. In this regard, the 1.5MeV KRATOS HVEM being installed in Berkeley will complement the other 650KeV, 1MeV, and 1.2MeV instruments currently operating in the U.S. One other consideration suggests that 1.5MeV is an optimum voltage machine – Its additional advantages may be purchased for not much more than a 1MeV instrument. On the other hand, the 3MeV HVEM's which seem to be operated at 2MeV maximum, are much more expensive.


2005 ◽  
Vol 19 (3) ◽  
pp. 129-132 ◽  
Author(s):  
Reimer Kornmann

Summary: My comment is basically restricted to the situation in which less-able students find themselves and refers only to literature in German. From this point of view I am basically able to confirm Marsh's results. It must, however, be said that with less-able pupils the opposite effect can be found: Levels of self-esteem in these pupils are raised, at least temporarily, by separate instruction, academic performance however drops; combined instruction, on the other hand, leads to improved academic performance, while levels of self-esteem drop. Apparently, the positive self-image of less-able pupils who receive separate instruction does not bring about the potential enhancement of academic performance one might expect from high-ability pupils receiving separate instruction. To resolve the dilemma, it is proposed that individual progress in learning be accentuated, and that comparisons with others be dispensed with. This fosters a self-image that can in equal measure be realistic and optimistic.


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