دانلود گزارش کارورزی و کار آموزی

Abstract :

In this study, we have investigated the effects of Porphyridium cruentum

(Rodophyta) as a natural pigment source and astaxanthin and b-carotene as synthetic

pigment sources on the skin colour of cichlid fish (Cichlasoma severum sp., Heckel 1840),

which are generally light orange with white patches and becomes shiny orange in the

reproductive phase. The fish were fed diets containing 50 mg kg–1 astaxanthin and bcarotene,

and P. cruentum powder. The amount of both natural and synthetic pigment

sources given as feed was 50 mg kg–1, and the experiment was continued for 50 days.

Total carotenoid content of the fish was determined spectrophotometrically at the end of

the experiment. As a result, while a visible change of colour in the skin of the fish fed on

the feed containing astaxanthin was observed with 0.34 ± 0.2 mg g–1 of pigment accumulation,

a relatively small change of colour was observed in the skin of other fish that

were fed on the feed containing P. cruentum and b-carotene with 0.22 ± 0.2 mg g–1 and

0.26 ± 0.1 mg g–1 of pigment accumulations, respectively. Therefore, it was determined

that these pigment sources have an effect on the colour of cichlid fish.

Abstract

Purpose The objective of the present study was to evaluate

sexual behavior longitudinally in the postpartum period

by mode of delivery.

Methods In this prospective study, five groups were

defined: women who delivered vaginally without an episiotomy

(), women who delivered vaginally with an

episiotomy (), women who delivered by instrumental

delivery (), women who delivered by an

emergent cesarean section (), and women who

delivered by an elective cesarean section (). Sexual

behavior was assessed by the female sexual function index

(FSFI) questionnaire at 6, 12, and 24 weeks postpartum

and by the timing of resumption of sexual intercourse.

Results The mean ± SD self-reported timing of resumption

of sexual activity was 4.5 ± 1.8, 7.9 ± 3.0, 7.3 ± 3.4,

6.1 ± 2.6, and 6.1 ± 2.4 weeks in the vaginal delivery

without an episiotomy group, in the vaginal delivery with

an episiotomy group, in the instrumental delivery group, in

the elective cesarean delivery group, and in the emergent