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41.
R. Ginés M. Palicio M.J. Zamorano A. Argüello J.L. López J.M. Afonso 《Aquaculture International》2002,10(5):379-389
Instrumental quality parameters related to freshness were evaluated for gilthead sea bream (Sparus aurata) after different storage periods on ice (2, 4, 7 and 11 days of storage) for one, four and eight days of pre-slaughter starvation. The study was carried out on 360 gilthead sea bream from five different groups reared on a commercial fish farm. Starvation period had a significant effect on fish texture: the force necessary to compress 4 mm of flesh after two days ice storage in 1 day starved fish (16.50 ± 0.59 Newtons) was less than that for four day (18.98 ± 0.63 Newtons) and eight day starved fish (20.43 ± 1.12 Newtons). Significant differences in flesh puncture and flesh compression were not detected, although these values did increase with increasing starvation period. A significant increase in pH and myofibrilar protein solubility was also detected for fish starved for one day. 相似文献
42.
Effect of two temperatures on yield and increase in cranial skeletal abnormalities during early development of palm ruff,Seriolella violacea (Guichenot 1848) 
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下载免费PDF全文 Wilfrido Argüello‐Guevara Milton Bohórquez‐Cruz Alfonso Silva 《Aquaculture Research》2017,48(1):298-310
The present study evaluates the effect of two temperatures, 14°C (T14) and 18°C (T18), on yield and the presence of cranial abnormalities during early development in north palm ruff (Seriolella violacea). Different time indices – days post‐hatching (DPH), degree‐days (D°) and effective degree‐days (D°eff) – were used to analyse growth during cultivation. Several ontogenetic events were achieved in less time during cultivation at 18°C. Additionally, a larger total length and final weight, as well as a higher survival rate, were achieved after 80 days of culture at higher temperatures (T18 = 55.5 ± 1.5 mm; 2.87 ± 0.21 g; 1.80 ± 0.18% and T14 = 24.3 ± 2.2 mm; 0.26 ± 0.08 g; 1.33 ± 0.12%). D° and D°eff were valid as independent temperature indices for predicting the growth response of S. violacea against thermal variations. The frequencies of cranial skeletal abnormalities (mouth and opercular complex) were evaluated in the pre‐flexion, flexion, post‐flexion and juvenile stages. However, the frequency of cranial skeletal abnormalities at the end of this study was not significantly influenced (P > 0.05) by temperature, and values below 21% were recorded in both treatments. These results can be of practical use for optimizing culture conditions to maximize the yield and quality of S. violacea juveniles. 相似文献
43.
Arg. ing. Max Hoffmann 《Journal of pest science》1987,60(8):149-151
A very simple method for calculating the effect of the muskrat-control is demonstrated. The problematic nature is discussed. Among other factors the water level influences the efficiency of control measures. 相似文献
44.
Pérez-Gutiérrez JF Argüelles JC Iglesias-Núñez M Oliveira KS De La Muela MS 《The Journal of small animal practice》2011,52(7):365-370
Objectives : To perform a histological and immunohistochemical study of epidermal growth factor, transforming growth factor‐alpha and their receptor, as well as the apoptotic signal active caspase‐3 in the levator ani muscle of dogs with and without perineal hernia. Methods : Biopsy specimens of the levator ani muscle were obtained from 25 dogs with perineal hernia and 4 non‐affected dogs and were processed for Masson and immunohistochemical staining. Results : The affected dogs exhibited myopathological features, internalised nuclei, destruction and abnormal size of muscle fibres, which were replaced by collagen. The immunohistochemical study revealed active caspase‐3, epidermal growth factor, transforming growth factor‐alpha and epidermal growth factor receptor in the levator ani. Compared to the healthy muscle, transforming growth factor‐alpha staining intensity was lower in the affected muscle, whereas epidermal growth factor receptor and active caspase‐3 staining were higher. Clinical Significance : Pelvic diaphragm muscle weakening is the leading cause of perineal hernia in the dog. Survival and death signals expressed in these muscles may contribute to the pathogenesis of this disease. This study reports epidermal growth factor, transforming growth factor‐alpha and epidermal growth factor receptor immunohistochemical expression in the skeletal muscle and suggests that perineal hernia in the dog is accompanied by levator ani muscle atrophy, increased expression of epidermal growth factor receptor, caspase‐3 activation, and decreased expression of transforming growth factor‐alpha. 相似文献
45.
Robin Kelleher Davis Marshall G. Doane Erich Knop Nadja Knop Richard R. Dubielzig Carmen M. H. Colitz Pablo Argüeso David A. Sullivan 《Veterinary ophthalmology》2013,16(4):269-275
Objective The importance of tear film integrity to ocular health in terrestrial mammals is well established, however, in marine mammals, the role of the tear film in protection of the ocular surface is not known. In an effort to better understand the function of tears in maintaining health of the marine mammal eye surface, we examined ocular glands of the California sea lion and began to characterize the biochemical nature of the tear film of pinnipeds. Procedures Glands dissected from California sea lion eyelids and adnexa were examined for gross morphology, sectioned for microscopic analysis, and stained with hematoxylin and eosin. The tear film was examined using interferometry. Tears were collected from humans and pinnipeds for the analysis of protein and carbohydrate content. Results The sea lion has sebaceous glands in the lid, but these glands are different in size and orientation compared with typical meibomian glands of terrestrial mammals. Two other accessory ocular glands located dorsotemporally and medially appeared to be identical in morphology, with tubulo‐acinar morphology. An outer lipid layer on the ocular surface of the sea lion was not detected using interferometry, consistent with the absence of typical meibomian glands. Similar to human tears, the tears of pinnipeds contain several proteins but the ratio of carbohydrate to protein was greater than that in human tears. Conclusions Our findings indicate that the ocular gland architecture and biochemical nature of the tear film of pinnipeds have evolved to adapt to the challenges of an aquatic environment. 相似文献
46.
Castro N Capote J Martín D Argüello A 《Journal of animal physiology and animal nutrition》2006,90(9-10):429-431
The effects on blood serum and colostrum immunoglobulin G (IgG) levels from including conjugated linoleic acid (CLA) in the diet were evaluated in goats. In experiment 1, 20 goats were allotted into two groups; the CLA group received 20 g/kg of dry matter of CLA 60 and the control group received 0 g/kg of CLA 60, from the third month of gestation until partum. Blood samples were taken every 2 weeks from 1 day before CLA inclusion to partum. From partum until 96 hours, blood and colostrum samples were taken every 24 h. Before partum, IgG serum blood levels were 15.6 and 9.4 mg/ml (CLA and control, respectively); the time effect was statistically significant. After partum (96 h), the effect of CLA dietary inclusion was statistically significant. 相似文献
47.
Regulation (EC) No 178/2002 states that each stage of production- from the primary production to the processing and distribution of feed and food- must be considered as a unique process, as each stage has a potential impact on food safety, animal health, plant health and environment. Aim of this paper is to discuss the different instruments and objectives of post-degree training of the veterinary hygienist and the ways that these may enable him/her to become updated, informed and competent in order to manage the different problems of food production in relation to the implications of the total food chain and not only of single stages and to apply the proper control measures at each step in order to protect human health. 相似文献
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49.
Davinia Sanchez-Macias Noemi Castro Isabel Moreno-Indias Antonio Morales-delaNuez Heather Briggs Juan Capote Anastasio Argüello 《Tropical animal health and production》2010,42(7):1317-1320
This study investigated the influence of storage temperature and storage time on goat milk somatic cell counts (SCCs) determined
using the DeLaval cell counter (DCC). SCCs were measured in 40 Majorera goat milk samples using the DCC device. Samples were
grouped from high score (>2,750 × 103 cells/mL) to low score (<630 × 103 cell/mL) according to the SCC. Each milk sample was divided into four aliquots and stored at four different temperatures
(4°C, 21°C, 36°C or 45°C). The SCC was recorded every hour for 12 hours. Storage of goat milk with a high SCC for 5, 5, 2
or 1 hour at 4°C, 21°C, 36°C or 45°C, respectively, decreased the SCC value compared to fresh milk. The goat milk SCC was
lower after 1 hour of storage than that determined for fresh milk at any tested temperature in low-SCC samples. The data presented
herein suggest that regardless of storage temperature, goat milk samples should not be stored for more than 1 hour before
measurement of SCC with a DCC device. 相似文献
50.
Regulation (EC) No 178/2002 states that each stage of production- from the primary production to the processing and distribution of feed and food- must be considered as a unique process, as each stage has a potential impact on food safety, animal health, plant health and environment. Aim of this paper is to discuss the different instruments and objectives of post-degree training of the veterinary hygienist and the ways that these may enable him/her to become updated, informed and competent in order to manage the different problems of food production in relation to the implications of the total food chain and not only of single stages and to apply the proper control measures at each step in order to protect human health. 相似文献