Synchronization of estrus by the use of TURISYNCHRON-premix and insemination time in young gilts     

U Hühn  E Brand  G Eismann 《Archiv fuer experimentelle veterinaermedizin》1974,28(5):709-715

In 664 primiparous gilts inseminated twice after oestrus synchronization, the timing of insemination had an important effect on conception rate and litter size. Best results (586 liver piglets per 100 pregnancies) were achieved by a first insemination on the afternoon of the 6th day. Another trial, with sexually mature gilts which were subsequently slaughtered, invloved artificial insemination at a planned time after synchronization of oestus with TRUISYNCHRON plus injection of Prolosan. Pregnancy rate and embryo count on the 29th day after synchronization were good when the first insemination was made on the evening of the 5th day and the second on the evening of the 6th day. Insemination on the morning and evening of the 6th day gave better results than on the evening of the 5th and morning of the 6th day.  相似文献   

Bioavailability of Metals at a Southeastern Brazilian Coastal Area of High Environmental Concern Under Anthropic Influence: Evaluation Using Transplanted Bivalves (<Emphasis Type="Italic">Nodipecten nodosus</Emphasis>) and the DGT Technique     

Monizze Vannuci-Silva  João M. de Souza  Fábio Francisco de Oliveira  Marcus A. G. de AraújoJr  Eleine Francioni  Carlos Eduardo Eismann  Chang H. Kiang  José S. Govone  Maria J. Belzunce-Segarra  Amauri Antonio Menegário 《Water, air, and soil pollution》2017,228(6):222

Metals are commonly determined in aquatic organisms, primarily using bivalves to provide important data on their bioavailability. The technique of diffusive gradients in thin films (DGTs) has also been employed to assess the concentration of metals in freshwater and marine environments, determining their lability. The present work evaluated and compared the labile and bioavailable concentrations of Cd, Co, Cu, Mn, Ni and Pb in seawater from Ilha Grande Bay, RJ, using DGT and transplanted bivalves (Nodipecten nodosus), respectively. The scallops and DGTs were immersed in water at three sampling locations within the bay from July to September 2012 (winter campaign) and from December 2012 to February 2013 (summer campaign). The metals were determined by inductively coupled plasma-mass spectrometry (ICP-MS) and optical emission spectrometry (ICP-OES). DGT technique was successfully used to determine the concentrations of metals in waters, except for Pb when short deployment times were used. All metals were determined using transplanted bivalves (N. nodosus), but pre-exposure to Cd was evident, which made the interpretation of the data for this analyte difficult. The data on metal lability in Ilha Grande Bay waters obtained from the DGT technique were correlated with the metal bioavailability determined in the soft tissues of the transplanted N. nodosus for Co, Cu, Mn, Ni and Pb. This is the first evaluation of this type for this area of high environmental concern. Both techniques revealed that Náutico was the location with the highest concentration of metals in the study area.  相似文献   

Phosphine in the Urban Air of Beijing and Its Possible Sources     

Ji-ang  Liu  Yahui  Cao Haifeng Zhuang  Kuschk  Peter  Eismann  Frank  Glindemann  Dietmar 《Water, air, and soil pollution》1999,116(3-4):597-604

Water, Air, &; Soil Pollution - Both as an air pollutant and as a gaseous component of the local phosphorus cycle, phosphine (PH3) was found in the urban air of Beijing. Other possible sources,...  相似文献