Search published articles


Showing 2 results for Egg Quality

, ,
Volume 3, Issue 3 (12-2014)
Abstract

The effect of thiamine injection at doses of 0 (T0), 5 (T5) and 50 (T50) mgkg-1 body weight on reproductive performanceof 45 females (698.7 ± 8.9 g) sterlet sturgeon (Acipenser ruthenus) was investigated in fiberglass tanks. Fish were fed practical diets supplemented with 1 g/kg amprolium hydrochloride (as the anti-thiamine) once a day for 5-month before spawning. At the end of 5 months trial, no significant difference was observed in germinal vesicle migration among treatments (p>0.05). Estradiol level was not significantly different (p>0.05), but testosterone was affected by injection of thiamine (p<0.05). Fecundity and latency time was not significantly different (p>0.05) among the treatments, but number of eggs per gram and hatching rate were significantly different (p<0.05). According to the results, injection of 50 mg thiamine hydrochloride per kg body weight had a positive effect on reproductive performance and could reduce the negative impacts of anti thiamines in natural environment.

Volume 18, Issue 117 (11-2021)
Abstract

Determining the status of egg fertilization plays a major role in determining the quality of eggs and their products. In this regard, in order to achieve greater productivity and production, egg evaluation is considered necessary and important in terms of spermatogenesis. In this regard, spectroscopy was performed in the range of 0.01900 nm from 130 local egg samples in the direction of the main diameter for 3 days during the storage period. Spectrum data from spectrometers, in addition to sample information, include unwanted information and noise.  For this reason, in order to achieve accurate classification models, it is necessary to process spectral data before developing the appropriate model. In this regard, intelligent neural network classification was developed based on reference measurements and information of pre-processed spectra by combining different methods of smoothing, normalizing and increasing spectral separation power to determine the presence of sperm in the egg.  Classification results on day zero, first, second, warehousing with 72.3% accuracy, 73.1%, 75.5%, and detection, 86.31, 87.1%, 76% and sensitivity, respectively: 83 61%, 79.63% and 73.3% were obtained.



Page 1 from 1