Zobrazeno 1 - 10
of 51
pro vyhledávání: '"M. Jalakas"'
Publikováno v:
Czech Journal of Animal Science, Vol 61, Iss 12, Pp 568-577 (2016)
The objectives were to determine the effects of insemination with sexed semen at spontaneous and induced estrus, fixed-time insemination at synchronized estrus, the deposition site, estrous intensity, housing, age, body weight, and bull on the pregna
Externí odkaz:
https://doaj.org/article/f011b97c36204d7bb3a133d362794e5d
Publikováno v:
Czech Journal of Animal Science. 61:568-577
Publikováno v:
Acta Horticulturae. :405-410
Publikováno v:
Anatomia, Histologia, Embryologia. 40:379-388
With 4 figures and 1 table Summary Dystocia is more common in Holstein–Friesian (HF) breed cows than in other dairy breeds. This is often caused by a disproportion between the birth canal of a female animal and the fetus. It is thought that the mai
Akademický článek
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Publikováno v:
Animal Reproduction Science. 95:116-124
The numbers of spermatozoa per insemination and the site of semen deposition in the uterine horn appear to interact to influence pregnancy rate. In two experiments, the effect of a single low dose (2 x 10(6) spermatozoa) intracornual insemination (LD
Autor:
Tanel Kaart, Lembit Majas, Peeter Padrik, M. Jalakas, Ülle Jaakma, J. Kurykin, Madis Aidnik, A. Waldmann
Publikováno v:
Theriogenology. 66:1364-1374
Milk progesterone concentration (P4), milk yield, milk composition, ovarian structures and pregnancy status were studied in 108 cows treated with two doses of PGF 14 days apart and inseminated at fixed time (TAI) 80-82 h later. The synchronization pr
Publikováno v:
Theriogenology. 60:1261-1268
The aim of the study was to determine the efficiency of single fixed time deep intracornual insemination using 2 x 10(6) spermatozoa compared with single standard dose deep intracornual insemination and single and dual standard dose (40 x 10(6)) uter
Publikováno v:
Journal of Veterinary Medicine Series A. 49:365-372
The reproductive organs of 20 Estonian Holstein Breed (EHF) cows and three heifers, culled because of infertility, were studied by palpation per rectum and ultrasonography. In addition, pathoanatomical and pathohistological studies were carried out a
Publikováno v:
Anatomia, Histologia, Embryologia
Summary There is no data in the literature concerning the frequency of birthing difficulties in the elk cow. This study aims to describe the pelves of elk cows and adult bulls. The measurements of an elk pelvis depend on living conditions rather than