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001-es BibID:BIBFORM117752
Első szerző:Barsi Brigitta (állattenyésztő mérnök)
Cím:Studies of colostrum and milk composition and quality of Gidran mares / Barsi Brigitta, Oláh János, Posta János, Knop Renáta
Dátum:2023
ISSN:2498-5910
Megjegyzések:Foals are born with intact but weakly functioning immune systems. Colostrum provides special immunoglobulins, which are essential for the development of passive immunity. The newborn foal is entirely dependent on antibodies from colostrum for protection against infection during the early neonatal period, meaning that after foaling, in a short time, they need to pick up a sufficient amount of colostrum in proper quality. The quantity and quality of colostrum cannot be influenced although it is well known that well-fed mares in good health typically produce enough antibody-rich colostrum for their newborn foals, the quality of colostrum can be determined by several methods. In 2022, I examined the gestation and lactation of 9 Gidran mares at Kismacs Experimental Station of Animal Husbandry of the University of Debrecen. I used a BRIX refractometer for measuring the colostrum IgG level, and a Lactoscan MCC Combo milk analyser for testing colostrum and milk.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
colostrum
immunoglobulins
foal
Gidran
Megjelenés:Danubian Animal Genetic Resources. - 8 : 2 (2023), p. 49-58. -
További szerzők:Oláh János (1976-) (állattenyésztés) Posta János (1978-) (informatika tanár, agrármérnök) Knop Renáta (1983-) (állatorvos)
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2.

001-es BibID:BIBFORM117751
Első szerző:Oláh János (állattenyésztés)
Cím:Examination of the vitality of black-colour (Hortobágy) Hungarian racka lambs / Oláh, János, Posta, János, Zokolicza József
Dátum:2023
ISSN:2498-5910
Megjegyzések:Hungary's sheep population is decreasing nowadays. On the first of December 2017, the herd consisted of more than 1.1 million sheep, and by June 2021, this number had barely reached 953 thousand. Based on data from the Central Statistical Office, on December 1, 2020, the sheep population numbered atotal of 944 thousand individuals, of which 754 thousand were ewes (HCSO, 2020). Of this, native breeds account for 2.5%, and nearly half of this is accounted for by the Hungarian racka sheep (Hortobágy). This amounts to approximately ten thousand individuals (BODNÁR et al., 2016). For this small number of sheep, it is important to preserve their genetic values and avoiding inbreeding is even more important. This is particularly related to the fact that we need to examine the vitality of the lambs in orderto produce even better breeding animals. It is important to monitor the behaviour of the sheep, the course of calving and the mother-lamb relationship, as this is of great importance in the development of technology. The observation of our farm animals influences feeding and husbandry technologies, thus we can create a better environment for them (BODNÁR et al., 2015).
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
sheep breeding
lamb rearing
lamb vitality
Megjelenés:Danubian Animal Genetic Resources. - 8 : 1 (2023), p. 15-20. -
További szerzők:Posta János (1978-) (informatika tanár, agrármérnök) Zokolicza József
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
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3.

001-es BibID:BIBFORM090984
Első szerző:Takács Marianna (állattenyésztés)
Cím:Effect of spring stimulating feeding on the population shift of honeybee (Apis mellifera L.) colonies depending on the age of queen bees in Hungary / Takács Marianna, Oláh János
Dátum:2020
Megjegyzések:The effect of spring stimulating feeding on population shift and development of honey bee, Apis mellifera L. (Hymentoptera: Apidae), colonies were examined in a 2-year study (2016- 2017). An apiary trial was conducted in Nyírmada, Szabolcs-Szatmár-Bereg County, Hungary. The monitoring covered the number of brood-frames of honeybee colonies with different age queen bees in both years. The spring development study included 59 colonies in the first test year and 58 colonies in the second test year. The data were recorded seven times in both years. Data on number of brood frames were subjected to one-way analysis of variance and the Tukey-test was used to compare means as post-hoc test. During the evaluation of our results we experienced that in the time of population shift all three queenyears were different in both years. This trend was also typical on 19th May 2017, when the honey collection from black locust influenced the brood areas. The significant difference during honey collection from black locust can be helpful in determining the proper time of queen change. The premature population shift was experienced on 17th April in 2017, which may have been caused by spring incentive feeding. The population shift was detected on 1st May in 2016, when the spring feeding was only a half a kilogram of pie. The effects of incentive feeding were reflected in the spring development of colonies.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
Apis mellifera L.
number of brood frames
demographic development
age of queen bee
population shift
Megjelenés:Danubian Animal Genetic Resources. - 5 : 2 (2020), p. 71-76. -
További szerzők:Oláh János (1976-) (állattenyésztés)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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