Were studied quantitative and qualitative indicators of sperm obtained from rams Karakul Moldovenesc. The average volume of the ejaculate was 0,84 ml, 91% mobility and 2,5 mlrd/ml concentration. The action of the BD-1 preparation synthesized at the Institute of Microbiology and Biotechnology of the ...

Objective: To clarify the difference and correlation of reproductive performance between different age groups of Guangxi Fufeng rooster, so as to provide better reference breeding conditions for the protection of the germplasm resources of Guangxi Fufeng rooster, and provide reference for improving ...

Chromium (Cr) is a micronutrient that occurs in the natural environment in different oxidation states. Natural compounds contain chromium in the +3 oxidation state, whereas chromic(VI) acid derivatives are industrial products with strong toxicity. Hexavalent chromium compounds can adversely affect...

In natural conditions, the efficiency of breeding in camelids is relatively low. The reproductive physiology of camelids differs to that of other domestic animals. Generation intervals are relatively long as males are slow to sexually mature and females exhibit an extended gestation period in...

The objective of this study was to assess the effect of progesterone concentration (P4) and ovarian structure models before initiation of different synchronization programmes on pregnancy outcomes per artificial insemination (AI) (P/AI) in beef cattle. Cattle were randomly assigned to one of three...

Natural conditions in most of the Portuguese territory (marginal soils and severe water deficit in the summer) do not favor intensive meat production, which in turn determines a low stocking rate unless the pastures are well managed and the animals adequately supplemented when necessary. These...

Aim: This study aimed to analyze the individual factors influencing the sperm quality of Bali bulls at Baturiti Artificial Insemination (AI) center. Materials and Methods: Semen that was ejaculated from nine Bali bulls was collected using artificial vaginas (n=5/bull). Semen ejaculates were...

The use of liquid semen for artificial insemination program of Etawah crossbreed goat (PE) is an alternative to replace frozen semen which is constrained by limited and expensive facilities. Production of liquid semen is faster than frozen semen, but the viability of liquid semen which preserved...

The evolution of WATER buffalo breeding is related to reproduction of water buffaloes and maintaining and increase of their population. A problem is the delayed maturation of the body and the occurrence of puberty. This aim of this study was to clarify and confirm issues such as age (in days) and...

The study aimed to evaluate the effect of Artificial insemination (AI) through crossbreeding on productive and reproductive performance dairy cows of smallholder farmers in Laelay maichew district. Using multistage random sampling method, 155 household dairy cow keepers selected. Semi-structured...