Symposium: Repoductive Management of Dairy Herds
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Entries by Dr Amir Niasari
Quality of sperm could be a dilemma in embryo production programs
s Quality of sperm is an important factor in any embryo production programs. Since the advent of semen sexing technology and the growing demand for heifer replacement in dairy farms, many embryo production programs were based on using sexed semen. No matter using sexed or unsorted semen, it is very important to check the quality […]
Embryo Recovery from Heifers and Transferring it to High-Producing Dairy Cows
In our recent activity in World Pure Heifer Agro-Industrial Dairy Farm (Hesarak, Varamin, Tehran province, I. R. IRAN; 16.03.2022), we have collected 19 ova/embryos in total and 17 transferable embryos from Holstein heifer. In fact, we have developed a safe and efficient method to collect embryos from heifers through Multiple Ovulation and Embryo Transfer (MOET). […]
Cattle Embryo Transfer
Embryo Transfer in Cattle Prof. Amir Niasari-Naslaji and Dr Darab Nikjou NiaNik Animal Technologies Rawson (1951), from University of Cambridge, was the first scientist who performed embryo transfer in cattle successfully. However, such technique was not commercially available till late 70s. Artificial insemination in cattle was well a head of embryo transfer, going back to […]
Sistani Cattle – Our Findings
Sistani Cattle – Our Findings Prof. Amir Niasari-Naslaji (D.V.M., Ph.D) Sistani cattle is an old indigenous Bos indicus (Zebu) species in Iran. According to the archeological evidence found in Shahr-e-Sukhteh, Zabol, Sistan and Balouchestan Province, Sistani cattle was inhabitant of Hamoun plain since 5500 years ago and had a great impact on Helmand culture. It […]
Current Reproductive Examinations in Dairy Cow
Current Reproductive Examinations in Dairy Cow
Iranian Bactrian Camel – Natural World Heritage
Iranian Bactrian Camel – Natural World Heritage Prof. Amir Niasari-Naslaji (D.V.M., Ph.D) Bactrian camel is one of the indigenous species in Iran which requires specific attention to be revived. The main habitant of this species is north part of Iran in Ardabil province where the weather could become extremely cold. Bactrian camel was domesticated within […]
Laparoscopic Artificial Insemination in Sheep
Following receiving a request by National Agriculture Biotechnology Research Institute in 2019, we have been assigned to inseminate nearly 500 Moghani ewes belonged to Jovein Agro-Industrial Company using Texel and Booroola frozen semen imported by the institute for research purposes. Unfortunately, only 269 frozen straws were available (113 Texel straws and 156 Booroola straws). We […]
