Találati lista | Tudóstér

001-es BibID:	BIBFORM072515
Első szerző:	Bagi Zoltán (természetvédelmi mérnök, állatgenetika)
Cím:	Morphometric characterization and exact separation of Eurasian Collared Dove (Streptopelia decaocto) and Common Pigeon (Columba livia forma domestica) moulted feathers / Bagi Zoltán, Posta János, Kusza Szilvia
Dátum:	2017
ISSN:	1416-647X 2498-907X
Megjegyzések:	Separation of feathers by objective methods improves the reliability and applicability of the moulted feathers sampling system. Our aim was to develop a simple and inexpensive method for the preselecting of samples, what can be performed even on the field and results could be helpful for the experts on different research areas (breeders, geneticists, bioinformaticians, physiologists, evolutionists, immunologists, industry experts, etc.). Eurasian Collared Dove Streptopelia decaocto and CommonPigeon Columba livia forma domestica moulted feather samples were separated by using morphometric methods. Primary, feathers from hunted or dead birds were studied. Morphometric parameters of feathers were measured and then statistical analysis (Descriptive Statistics, Discriminant Analysis, Logistic Regression) was performed to compare the two species. We present three variables (diameter of calamus, length of rachis and width of complete vane) for test methods, what is suitable for the characterization of the species. The most important result of this study is to demonstrate the applicability of morphometric methods in order to identify the moulted feathers. Our study confirmed the possibility of sure separation and identification the feathers of the two studied species. We recommend preparing for further studies in case of other species, based on the used methodology andthe creation of a database that makes it easier to identificate the moulted feathers in the future.
Tárgyszavak:	Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény hazai lapban Columbidae Descriptive Statistics Discriminant Analysis Feather Characteristic Geometric Analysis Logistic Regression Non-invasive Sampling
Megjelenés:	Acta Agronomica Óváriensis 58 : 1 (2017), p. 21-32. -
További szerzők:	Posta János (1978-) (informatika tanár, agrármérnök) Kusza Szilvia (1979-) (agrármérnök)
Pályázati támogatás:	EFOP-3.6.1-16-2016-00017 EFOP
Internet cím:	Szerző által megadott URL Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon:

001-es BibID:	BIBFORM107804
Első szerző:	Lenner Ádám (természetvédelmi mérnök)
Cím:	The characteristic of fosterage in a hungarian grey cattle (Bos primigenius taurus hungaricus) stock / Ádám Lenner ; Evelin Török ; István Komlósi
Dátum:	2021
ISSN:	1416-647X 2498-907X
Megjegyzések:	The concept of fosterage appears in different ways at different organisational levels. The literature mainly describes artificial fostering methods for dairy cattle. For beef cattle, it is only partly used. The aim of our study was to investigate the development, rate, and efficiency of natural fostering in a Hungarian Grey cattle herd of nearly 200 dams at the Szamárháti farm of the Tiszatáj Public Foundation in Hungary. The observation period lasted from 2018 to 2020. During the three years, there were a total of 335 calvings, 79 offspring died, sucklings was recorded in 1173 cases, 16 dams and the consequent development of foster-mothering were described. Our research seeks to reveal whether it makes sense to maintain the foster dam's nursing activity or whether drying off is necessary in the case of natural fostering. The results show that a quarter of dams fostered offspring after losing their calves. The age of the fostered calves were between one day and one month, with their 205 day-adjusted weights 11-29% above the average of the non - fostered ones. The calves of the foster dams also died in one of the following years, which may justify the culling of these individuals. The age of the dams and the number of their calvings varied. In the future, we should also monitor the offspring care of the fostered heifers and the social behaviour of the fostered offspring.
Tárgyszavak:	Agrártudományok Állattenyésztési tudományok konferenciacikk folyóiratcikk behaviour attachment Hungarian Grey cattle offspring care foster cow fostered offspring
Megjelenés:	Acta Agronomica Óváriensis. - 62 : Különszám 1. (2021), p. 23-36. -
További szerzők:	Török Evelin (1993-) (mezőgazdasági mérnök) Komlósi István (1960-) (agrármérnök)
Pályázati támogatás:	EFOP-3.6.3-VEKOP-16-2017-00008 EFOP
Internet cím:	Szerző által megadott URL Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon: