Comparative characteristics of first-calf cows productivity of modern dairy breeds under the condition of one farm
Journal Title: Біологія тварин - Year 2017, Vol 19, Issue 3
Abstract
The paper deals with the results of comparative analysis of using first-calf cows of Holstein, Ukrainian Black-and-White and Red-and-White dairy breeds of private agricultural company “Yerchyky” in Popilnyansky district, Zhytomyr region. The results of our research work indicate that Holstein cows of this farm, which were obtained by reproductive crossing, surpassed those of the same age cows of Ukrainian Black-and-White and Red-and-White dairy breeds in milk productivity, especially in quantitative traits. This proves the effectiveness and expediency of further holsteinisation of dairy cattle if will be provided good growing of remount heifers, scientific and reasonable feeding of dairy herd. It has been established that increasing the share of heredity of Holstein breed, until getting high blood and purebred Holstein (over 93.7 %) practically does not make worst the reproductive capacity of animals, because all first-calf cows are characterized by almost the same reproductive capacity index. The proportion of breed belonging in the total variability of traits varied within 0.34–12.6 %, but rates of milk production due to waste belonging average of 7 %, the parameters of reproductive capacity — 0.8 % according to conducted analysis of variance. Breeding makes the reliable effects on variability of such traits of milk productivity as milk yield at 305 days of lactation, the amount of milk fat and milk protein, relative milk production, milk fat and protein. Significant impact of breed belonging on reproductive capacity was not observed and in all times it was unreliable. The paper proves that from the economic point of view the animals breedings of Holstein is the most effective for milk yielding under the conditions of Yerchyky, which have twice bigger level of profitability than cows of Ukrainian dairy breeds.
Authors and Affiliations
М. Pelekhaty, L. Piddubna, A. Kochuk-Yashchenko, D. Kucher
Keywords
Related Articles
- EP ID EP269076
- DOI 10.15407/animbiol19.03.069
- Views 122
- Downloads 0
Significance of mammals sperm plasma proteins for maintaining of spermatozoa viability and preservation of fertilizing ability
The article summarizes the literature data on the biochemical mechanisms of the action of the proteins and amino acids in the semen of mammalian males and their role in maintaining the processes of sperm life and fertili...
The content of fatty acids in the bodies of Cyprinus carpio L. in different conditions of life
An important role in the processes of adaptation of living organisms to extreme conditions of the environment belongs to fatty acids (FA). By the method of gas chromatography with a flame-ionization detector we have exam...
Microelements content in tissues of female F0 rats and F1 males at the watering of nano and chemically synthesized germanium citrate
The results of the impact of long watering different amounts of citrate germanium nanotechnology and obtained by chemical synthesis, on the content of microelements in tissues of female and male mothers to their offsprin...
Structural changes in rats kidneys under the influence of histamine and sodium hypochlorite
Influence of histamine and sodium hypochlorite (SH), as well as their simultaneous action on structural features of rat kidneys on the 1st, 7th, 14th day of the experiment and after the rehabilitation period (21st day) i...
Effect of taurine administration on activity of superoxidedismutase in rat tissues
The aim of work was to study the activity of superoxide dismutase and its isozymes in rat tissues under the conditions of prolonged oral administration of taurine. Male Wistar rats weighing 190–220 g and age 4.5 months,...