Gauly, Matthias

[["dc.bibliographiccitation.firstpage","80"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Journal of Animal Science"],["dc.bibliographiccitation.lastpage","86"],["dc.bibliographiccitation.volume","88"],["dc.contributor.author","Brandt, H."],["dc.contributor.author","Muellenhoff, A."],["dc.contributor.author","Lambertz, C."],["dc.contributor.author","Erhardt, Georg"],["dc.contributor.author","Gauly, Matthias"],["dc.date.accessioned","2018-11-07T08:47:53Z"],["dc.date.available","2018-11-07T08:47:53Z"],["dc.date.issued","2010"],["dc.description.abstract","Data from pure breeds, as well as reciprocal crosses of German Angus (GA) and Simmental (SIM) beef cattle, were used to estimate genetic parameters and to evaluate the suitability for crossbreeding in terms of increasing productivity. Traits of interest were calving difficulty, birth weight (BWT), weaning weight (WWT), and ADG from birth to weaning. Data were collected over a period of 7 yr from 1997 and 1998 until 2003 and 2004, whereas crossbreeding was carried out in 2002 and 2003, and 2003 and 2004 only. Variance components and differences between breeds, individual heterosis, and maternal breed effects were analyzed based on 1,441 purebred and 329 crossbred records for BWT and 1,319 purebred and 316 crossbred records for WWT and ADG, respectively. Mean calving difficulty scores were greater in SIM than in GA ( P < 0.001). For BWT, WWT, and ADG both reciprocal crosses fell between the purebreds, and for all 3 traits SIM showed greater average values compared with GA. The estimated heritabilities were 0.23 for BWT and 0.12 for WWT. Values for the maternal effect and the correlation between additive and maternal effect were 0.18 for BWT, 0.08 for WWT, 0.32 for BWT, and 0.50 for WWT, respectively. Individual heterosis was only significant for BWT (3.7%; P < 0.01). Superior mothering ability of SIM was implicated by greater WWT and ADG of SIM as dam against the reciprocal cross ( P < 0.001). The results provide information about the extent of individual heterosis and maternal breed effects."],["dc.description.sponsorship","German Research Foundation [DFG-SFB 299]"],["dc.identifier.doi","10.2527/jas.2008-1742"],["dc.identifier.isi","000273072000009"],["dc.identifier.pmid","19749017"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/21072"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Soc Animal Science"],["dc.relation.issn","1525-3163"],["dc.relation.issn","0021-8812"],["dc.title","Estimation of genetic and crossbreeding parameters for preweaning traits in German Angus and Simmental beef cattle and the reciprocal crosses"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","141"],["dc.bibliographiccitation.issue","1-2"],["dc.bibliographiccitation.journal","Veterinary Parasitology"],["dc.bibliographiccitation.lastpage","148"],["dc.bibliographiccitation.volume","128"],["dc.contributor.author","Gauly, Matthias"],["dc.contributor.author","Homann, T."],["dc.contributor.author","Erhardt, Georg"],["dc.date.accessioned","2018-11-07T11:16:30Z"],["dc.date.available","2018-11-07T11:16:30Z"],["dc.date.issued","2005"],["dc.description.abstract","Ninety white chickens (Lohmann LSL) were reared under helminth-free conditions and divided into five groups. Four groups were artificially infected with 250 embryonated Ascaridia galli eggs at the age of 6, 12, 18 or 24 weeks. Ten birds were kept as uninfected controls. Six and 10 weeks after infection (p.i.), individual faecal egg counts (FEC) were performed. The birds were slaughtered after the second sampling and their gastrointestinal tracts were examined for the presence of adult A. galli. The FEC increased from the first to the second sampling significantly in all the infected groups. The highest increase was shown in the group infected at 12 weeks of age, whereas the increase in the other groups was relatively moderate. However, the total worm burden and mean FEC at the second sampling were highest (p < 0.01) in those birds infected at an age of 12 or 18 weeks. The serum protein and triiodothyronine (T3) levels did not differ significantly (p > 0.05) between any of the groups. Thyroxine (T4) was significantly different between the groups infected at 6 and 18 weeks of age (p < 0.05), and those at 6 and 24 weeks of age (p < 0.01). The thyroid hormone levels correlated significantly with the FEC. Age does not seem to play a major role in resistance to A. galli infections in layers, whereas a bird's hormonal and immune status, related to laying activity, seems to have a significant negative impact on resistance. (c) 2004 Elsevier B.V. All rights reserved."],["dc.identifier.doi","10.1016/j.vetpar.2004.11.023"],["dc.identifier.isi","000227824400018"],["dc.identifier.pmid","15725544"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/54604"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.relation.issn","0304-4017"],["dc.title","Age-related differences of Ascaridia galli egg output and worm burden in chickens following a single dose infection"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","84"],["dc.bibliographiccitation.journal","Veterinary Research"],["dc.bibliographiccitation.volume","42"],["dc.contributor.author","Luehken, Gesine"],["dc.contributor.author","Gauly, Matthias"],["dc.contributor.author","Kaufmann, Falko"],["dc.contributor.author","Erhardt, Georg"],["dc.date.accessioned","2018-11-07T08:54:20Z"],["dc.date.available","2018-11-07T08:54:20Z"],["dc.date.issued","2011"],["dc.description.abstract","Single nucleotide polymorphisms (SNPs) in the genes for interleukin-4, -13 and interferon-gamma, and 21 additional SNPs which previously had been significantly associated with immune traits in the chicken, were genotyped in white and brown layer hens and analyzed for their association with helminth burden following natural infections. A nucleotide substitution located upstream of the promoter of the interferon-gamma gene was significantly associated with the log transformed number of Ascaridia galli in the brown layer line (genotype CC: 6.4 +/- 1.0 worms; genotype CT: 11.7 +/- 2.2 worms). Therefore, IFNG seems to be a promising candidate gene for further studies on helminth resistance in the chicken."],["dc.identifier.doi","10.1186/1297-9716-42-84"],["dc.identifier.isi","000293637400001"],["dc.identifier.pmid","21749701"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/6868"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/22647"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Biomed Central Ltd"],["dc.relation.issn","0928-4249"],["dc.rights","CC BY 2.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/2.0"],["dc.title","Association study in naturally infected helminth layers shows evidence for influence of interferon-gamma gene variants on Ascaridia galli worm burden"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","Journal of Animal Science"],["dc.bibliographiccitation.volume","82"],["dc.contributor.author","Gauly, Matthias"],["dc.contributor.author","Reeg, J."],["dc.contributor.author","Bauer, C."],["dc.contributor.author","Brandt, H."],["dc.contributor.author","Mertens, C."],["dc.contributor.author","Zahner, H."],["dc.contributor.author","Erhardt, Georg"],["dc.date.accessioned","2018-11-07T10:52:44Z"],["dc.date.available","2018-11-07T10:52:44Z"],["dc.date.issued","2004"],["dc.format.extent","227"],["dc.identifier.isi","000203095200909"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/49183"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Soc Animal Science"],["dc.publisher.place","Savoy"],["dc.relation.issn","0021-8812"],["dc.title","Genetic resistance to Eimeria infections in Merinoland sheep and relationships among oocyst count, E. ovinoidalis antibody level and live weight"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","178"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","DEUTSCHE TIERARZTLICHE WOCHENSCHRIFT"],["dc.bibliographiccitation.lastpage","181"],["dc.bibliographiccitation.volume","113"],["dc.contributor.author","Gauly, Matthias"],["dc.contributor.author","Schackert, M."],["dc.contributor.author","Hoffmann, Bernd"],["dc.contributor.author","Erhardt, Georg"],["dc.date.accessioned","2018-11-07T09:51:28Z"],["dc.date.available","2018-11-07T09:51:28Z"],["dc.date.issued","2006"],["dc.description.abstract","36 intact male and 69 female lambs of two breeds (n = 63 Merinoland; n = 42 Rhon) aged 12 weeks were orally infected with 5000 infective-stage larvae, L-3, of the nematode Haemonchus contortus. After 4 and 8 weeks faecal egg counts (FEC), haematocrit values and plasma testosterone levels were determined. All lambs were slaughtered at 20 weeks of age. The gastrointestinal tracts were examined for the presence of adult stages of H. contortus. Male lambs showed significantly higher log FEC (p < 0.001), higher mean establishment rates (p < 0.05), higher worm burdens (p < 0.01) and lower haematocrit values (p < 0.001) when compared with female lambs. Correlations between economically important traits (body weight, daily weight gain) and parasitological parameters were significantly higher in male animals. Testosterone level was 4 weeks after infection significantly positive correlated with worm burden. The results suggest that female lambs are more resistant against an experimental H. contortus infection when compared with male lambs. Testosterone seems to play an important role in resistance. This approach can be of importance if parasite resistance is incorporated into breeding programs and the estimated breeding values for rams are only based on male offspring information. Therefore male breeding values are probably not representative for the whole population."],["dc.identifier.isi","000238139800002"],["dc.identifier.pmid","16821560"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/35923"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","M H Schaper Gmbh Co Kg"],["dc.relation.issn","0341-6593"],["dc.title","Influence of sex on the resistance of sheep lambs to an experimental Haemonchus contortus infection"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","209"],["dc.bibliographiccitation.issue","3-4"],["dc.bibliographiccitation.journal","Veterinary Parasitology"],["dc.bibliographiccitation.lastpage","219"],["dc.bibliographiccitation.volume","127"],["dc.contributor.author","Reeg, K. J."],["dc.contributor.author","Gauly, Matthias"],["dc.contributor.author","Bauer, C."],["dc.contributor.author","Mertens, C."],["dc.contributor.author","Erhardt, Georg"],["dc.contributor.author","Zahner, H."],["dc.date.accessioned","2018-11-07T11:22:46Z"],["dc.date.available","2018-11-07T11:22:46Z"],["dc.date.issued","2005"],["dc.description.abstract","Faecal Eimeria oocyst excretion, body weights, humoral antibodies against E. ovinoidalis sporozoite antigen and related heritabilities were determined in housed Merinoland sheep lambs throughout a period of 100 days after birth in Germany. Altogether 10-11 Eimeria spp. were found. Cumulative incidences of E. ovinoidalis and E. weybridgensis/crandallis increased rapidly resulting in almost 100% incidence in 8 weeks old lambs. In the other species, the cumulative incidence increased more continuously. Except for E. granulosa oocysts of all species had been excreted at last once until day 30. By far the highest oocyst counts (OpG) were observed with E. ovinoidalis, followed by E. weybridgensis/crandallis. High counts were limited to the period of 5-8 weeks after birth. In the other Eimeria species oocyst counts persisted at comparatively low levels until the end of the observation period although their proportion of the total counts increased with age of the lambs. Time courses of oocyst excretion suggest an early onset of effective immunity to the major Eimeria spp., which differed for the minor species. Mean and maximum oocyst counts and body weights of the lambs were inversely correlated suggesting negative effects of the infection on the lamb's performance. High mean antibody levels on day 7 after birth dropped until day 40 and increased subsequently again. There were no indications that maternal antibodies were protective. Antibody levels on day 40 after birth were positively correlated with oocyst counts in the faeces whereas those determined on day 80 were independent of infection parameters. Heritabilities of log(10) OpG were not significantly different from 0 up to an age of 60 days. Later estimated values were between 0.54 and 0.79 suggesting that immune protective effects rather than innate effects determining disease susceptibility are under genetic influence. (c) 2004 Elsevier B.V. All rights reserved."],["dc.identifier.doi","10.1016/j.vetpar.2004.10.018"],["dc.identifier.isi","000227548600004"],["dc.identifier.pmid","15710521"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/56048"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.relation.issn","1873-2550"],["dc.relation.issn","0304-4017"],["dc.title","Coccidial infections in housed lambs: oocyst excretion, antibody levels and genetic influences on the infection"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","103"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Small Ruminant Research"],["dc.bibliographiccitation.lastpage","107"],["dc.bibliographiccitation.volume","117"],["dc.contributor.author","Lambertz, C."],["dc.contributor.author","Friedrich, Carsten"],["dc.contributor.author","Moors, Eddy J."],["dc.contributor.author","Brandt, H."],["dc.contributor.author","Erhardt, Georg"],["dc.contributor.author","Gauly, Matthias"],["dc.date.accessioned","2018-11-07T09:43:29Z"],["dc.date.available","2018-11-07T09:43:29Z"],["dc.date.issued","2014"],["dc.description.abstract","This study compared claw conformation (length of dorsal border (DB), diagonal length (DL), dorsal angle (DA), heel height (HH), hardness) and claw horn structure (number of horn tubules, diameter of tubules medullary cavity (TC), thickness of tubules cortex (TX) and average and total horn tubules zone) of two sheep breeds. Heritabilities for these parameters were estimated and the relationship to the incidence of footrot investigated. In total, front and hind claws of 240 sheep of the two breeds Merinoland (ML; n = 142) and Rhoen sheep (RH; n = 98) were examined four times in monthly intervals. Animals were screened for footrot every second week during the study period. DL and DB, were greater in ML than in RH (P<0.05) and greater in front than in hind claws (P<0.05). Front claws had greater HH and DA than hind claws (P<0.05) with the values being superior in ML compared to RH (P<0.05). Only in ML front and hind claws differed in their hardness (P<0.05). Only 14% of ML animals were footrot-positive. These animals showed higher values in DA (P<0.01) and HH (P<0.05) and shorter DL than footrot-negative ones. Heritability estimates were on a moderate level for DL (0.29-0.53) and HH (0.15-0.25), whereas lower values were estimated for DB (0.04-0.15) and DA (0.08-0.19). Hardness was not found as a possible selection trait. Regarding the claw horn structure, TC, TX and average and total tubules zone were lower in ML than in RH (P<0.05). In RH hind claws had larger average (P<0.05) as well as total (P<0.05) tubules zone than front claws. Parameters of claw horn structure showed moderate heritabilities (0.36-0.57). In conclusion, the results indicated the possibility to select sheep on the basis of morphological parameters of claw conformation and claw horn structure for an improved claw quality. However, the low incidence of footrot-positive animals did not allow drawing conclusions on the relationship between the observed parameters and the incidence of footrot. (C) 2013 Elsevier B.V. All rights reserved."],["dc.identifier.doi","10.1016/j.smallrumres.2013.11.017"],["dc.identifier.isi","000330912100015"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/34198"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.relation.issn","1879-0941"],["dc.relation.issn","0921-4488"],["dc.title","A comparison of claw conformation and claw horn structure of two sheep breeds, and their relationship to footrot incidence"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","271"],["dc.bibliographiccitation.issue","3-4"],["dc.bibliographiccitation.journal","Veterinary Parasitology"],["dc.bibliographiccitation.lastpage","280"],["dc.bibliographiccitation.volume","146"],["dc.contributor.author","Gauly, Matthias"],["dc.contributor.author","Duss, C."],["dc.contributor.author","Erhardt, Georg"],["dc.date.accessioned","2018-11-07T11:02:19Z"],["dc.date.available","2018-11-07T11:02:19Z"],["dc.date.issued","2007"],["dc.description.abstract","In the present study, the effects of an experimental Ascaridia galli infection and anthelmintic treatment on the behaviour and social status of laying hens of two different lines were studied. Sixty white (Lohmann LSL; LSL) and 60 brown (Lohmarm Brown; LB) hens were reared under helminth-free conditions. The hens of each line were divided into four groups. The birds in two of the groups were artificially infected with 250 embryonated A. galli eggs at an age of 27 weeks. The other two groups were kept as uninfected controls. One infection and control group was dewormed at 38 weeks of age and slaughtered 4 weeks later, contemporary with the other animals. Individual faecal Ascaridia egg counts (FEC) were performed 11 weeks post-infection (p.i.). Body weights, laying performance and egg weights were recorded regularly. Blood was taken to measure testosterone levels. The worm burdens established in the intestines were counted in the infected not treated group after slaughtering. In addition, 15 behavioural parameters were recorded by focal animal observation (n = 10 per group) of one infection (plus anthelmintic treatment) and one control group, according to the time-sampling method throughout the experiment. All agonistic interactions within the groups were recorded simultaneously on an ongoing basis, thereby allowing the calculation of an individual social rank index. The following results were obtained: Mean FEC and worm burden were higher (p < 0.01) in the LSL hens than in the LB hens, but their performances were not different (p > 0.05) from the controls. Infections with A. galli resulted in significant behavioural changes in both lines as the infected birds showed a higher food intake and lower locomotion activity during the prepatent and patent periods. After anthelmintic treatment, food intake decreased and locomotion increased. Behavioural changes were more pervasive in the infected LSL hens, as these hens also showed changes in ground pecking and nesting activity not only during the prepatent and patent periods, but also after anthelmintic treatment. Social rank did not significantly change as a consequence of A. galli infection, but the infection groups of both lines had a tendency to display more agonistic activity than the non-infected controls. Serum testosterone values only increased significantly in the LSL hens during the patent period compared to the controls. No significant correlations were apparent between serum testosterone level, parasitic parameters, social status and/or aggressiveness in any of the groups."],["dc.identifier.doi","10.1016/j.vetpar.2007.03.005"],["dc.identifier.isi","000246717300012"],["dc.identifier.pmid","17434676"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/51353"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.relation.issn","0304-4017"],["dc.title","Influence of Ascaridia galli infections and anthelmintic treatments on the behaviour and social ranks of laying hens (Gallus gallus domesticus)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1276"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","animal"],["dc.bibliographiccitation.lastpage","1282"],["dc.bibliographiccitation.volume","5"],["dc.contributor.author","Idris, Ahmad"],["dc.contributor.author","Moors, Eddy J."],["dc.contributor.author","Budnick, C."],["dc.contributor.author","Herrmann, Alexander M."],["dc.contributor.author","Erhardt, Georg"],["dc.contributor.author","Gauly, Matthias"],["dc.date.accessioned","2018-11-07T08:53:59Z"],["dc.date.available","2018-11-07T08:53:59Z"],["dc.date.issued","2011"],["dc.description.abstract","The relationship among parasitological parameters, abomasal size and body size measurements was investigated in lambs following an experimental infection with Haemonchus contortus. In total, 100 lambs from five different genotypes (German Merino (GM), Texel X GM, Suffolk X GM, German Blackhead Mutton X GM and Ile de France X GM) were experimentally infected with 5000 infective third stage larvae of H. contortus at the time of weaning at 12 weeks of age. Four and six weeks after infection, individual faecal samples were collected for estimation of faecal egg counts (FECs). Furthermore, wither height, shoulder width, heart girth, loin girth and body length were taken at 18 weeks of life. Lambs were slaughtered and necropsied 7 weeks post-infection, and worm counts, abomasal volume and surface area were determined. Positive correlations were found between different body size parameters, body weight and abomasal sizes. FEC and worm counts were not significantly correlated either with body size parameters or with abomasal size. The mean worm burden was higher in GM than in crossbred lambs. There was no significant difference in abomasal size between GM and crossbred lambs. The results suggest that the variations between animals in worm burden following an experimental infection with H. contortus (worm resistance) are not influenced by body size parameters or abomasal sizes. Therefore, other factors, including genetic-based differences in resistance, must cause these findings between and within breeds."],["dc.identifier.doi","10.1017/S1751731111000292"],["dc.identifier.isi","000292608500015"],["dc.identifier.pmid","22440180"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/22558"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Cambridge Univ Press"],["dc.relation.issn","1751-7311"],["dc.title","Is the establishment rate and fecundity of Haemonchus contortus related to body or abomasal measurements in sheep?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","756"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Journal of Veterinary Internal Medicine"],["dc.bibliographiccitation.lastpage","760"],["dc.bibliographiccitation.volume","19"],["dc.contributor.author","Gauly, Matthias"],["dc.contributor.author","Vaughan, J."],["dc.contributor.author","Hogreve, S. K."],["dc.contributor.author","Erhardt, Georg"],["dc.date.accessioned","2018-11-07T10:56:22Z"],["dc.date.available","2018-11-07T10:56:22Z"],["dc.date.issued","2005"],["dc.description.abstract","Auditory function of llamas and alpacas was assessed objectively by means of brainstem auditory-evoked response audiometry (BAER) to establish the normal hearing range and to test the hypothesis of a correlation between blue eyes, white coat, and deafness. Sixty-three camelids were available for the study. Thirteen animals had blue irides; 1 animal had 1 blue and 1 pigmented iris. Wave latencies, amplitudes, and interpeak latencies were measured under general anesthetic. Click stimuli (dB [HL]) were delivered by an insert earphone. Four to five positive peaks could be detected; waves I, II, and V were reproducible; wave II appeared infrequently; and wave IV generally merged with wave V to form a complex. Peak latencies decreased and peak amplitudes increased as stimulus intensity increased. A hearing threshold level of 10-20 dB (HL) was proposed as the normal range in llamas and alpacas. None of the animals with pigmentation of coat and iris showed any degree of hearing impairment. Seven of the 10 blue-eyed, pure-white animals were bilaterally deaf and one of them was unilaterally deaf. However, 2 blue-eyed, white animals exhibited normal hearing ability. Three blue-eyed animals with pigmented coat did not show any hearing impairment. All white animals with normal iris pigmentation had normal auditory function; so did the 1 animal with 1 normal and 1 blue iris. The high frequency (78%) of bilaterally deaf animals with pure white coat and blue iris pigmentation supports the hypothesis of a correlation between pigmentation anomalies and congenital deafness in llamas and alpacas."],["dc.identifier.doi","10.1892/0891-6640(2005)19[756:BAPAOA]2.0.CO;2"],["dc.identifier.isi","000232183600020"],["dc.identifier.pmid","16231723"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/49995"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Coll Veterinary Internal Medicine"],["dc.relation.issn","0891-6640"],["dc.title","Brainstem auditory-evoked potential assessment of auditory function and congenital deafness in llamas (Lama glama) and alpacas (L pacos)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]