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The influence of age at first fertilization on performance traits of sim mental cows / Uticaj uzrasta pri prvoj oplodnji na proizvodne osobine krava simentalske rase
(Dnevik-Poljoprivrednik AD, Poljoprivredni fakultet i Naučni institut za ratarstvo i povrtarstvo, Novi Sad, 2002)
Certain reproductive and performance traits of Simmental cows, as well as the demonstration of those traits depending on the effect of age at first fertilization, were investigated. The investigation included 606 cows ...
The influence of age at first fertilization on some reproductive and performance traits of Simmental cows in first three lactations / Uticaj uzrasta pri prvoj oplodnji na neke reproduktivne i proizvodne osobine krava simentalske rase u prve tri laktacije
(Institute for Animal Husbandry, Belgrade, 2002)
Certain reproductive and performance traits of Simmental cows, as well as the demonstration of those traits depending on the effect of age at first fertilization, were investigated. The investigation included 606 cows, ...
In vitro boar fertility during summer and autumn season
(Institute for Animal Husbandry, Belgrade-Zemun, 10-2021)
A primary objective of this study was to determine the effect of breed, frequency of utilisation, boar age and season on following sperm characteristics: volume of ejaculate (ml), sperm concentration (x1000000 spermatozoa/ml), ...
Effect of genotype and age of laying hens on the quality of eggs and egg shells
(Univ Agricultural Sciences & Veterinary Medicine Bucharest, Bucharest, 2017)
The paper presents the results of testing of the egg and egg shell quality of two light line hen hybrids (Tetra SL and Bowans Brown). There were total of 4 tests. At the end of 35, 45, 55 and 65 weeks of age, the external ...
Association of ewe’s age, premating weight on litter size and birth weight of lambs
(Research Institute of Mountain Stockbreeding and Agriculture, Troyan, 2019)
The aim was to examine the effect of premating age, premating weight of ewes Mis sheep breed on lamb’s birth weight, birth type, gender and the interaction between subject effects. 70 ewes of Mis breed of sheep and their ...