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Related Concept Videos

Cloning of Dolly the Sheep01:08

Cloning of Dolly the Sheep

The first successfully cloned mammal was Dolly, a sheep, born on 5th July 1996 at Roslin Institute, Scotland. The cloned sheep was named after the American singer Dolly Parton. Dolly lived for seven years and died of respiratory complications, which is speculated to be due to the actual age of her DNA. Because the DNA in cloned cells belongs to an older individual,  the cloned individual’s life expectancy may be affected. Indeed, analysis of Dolly’s DNA revealed shorter telomeres than other...
Reproductive Cloning01:27

Reproductive Cloning

Reproductive cloning is the process of producing a genetically identical copy—a clone—of an entire organism. While clones can be produced by splitting an early embryo—similar to what happens naturally with identical twins—cloning of adult animals is usually done by a process called somatic cell nuclear transfer (SCNT).
Somatic Cell Nuclear Transfer
In SCNT, an egg cell is taken from an animal and its nucleus is removed, creating an enucleated egg. Then a somatic cell—any cell that is not a sex...
Understanding Species and Reproductive Barriers01:17

Understanding Species and Reproductive Barriers

A species is a group of organisms that interbreed and produce fertile offspring. Typically, individuals of the same species appear similar and share common characteristics due to their highly similar genomes. However, not all organisms that look alike are members of the same species. Various mechanisms keep most species discrete. While some mechanisms prevent reproductive behavior and fertilization (pre-zygotic isolation), others prevent the production of fertile offspring after mating has...
Migration00:53

Migration

Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
Limits to Natural Selection01:38

Limits to Natural Selection

Organisms that are well-adapted to their environment are more likely to survive and reproduce. However, natural selection does not lead to perfectly adapted organisms. Several factors constrain natural selection.For one, natural selection can only act upon existing genetic variation. Hypothetically, redtusks may enhance elephant survival by deterring ivory-seeking poachers. However, if there are no gene variants—or alleles—for redtusks, natural selection cannot increase the prevalence of...
Conservation of Small Populations02:04

Conservation of Small Populations

Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less likely to...

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Related Experiment Video

Updated: Jul 3, 2026

Protocol for Assessing the Relative Effects of Environment and Genetics on Antler and Body Growth for a Long-lived Cervid
09:09

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Published on: August 8, 2017

Reproduction in domestic buffalo.

B M A O Perera1

  • 1Faculty of Veterinary Medicine and Animal Science, University of Peradeniya, Peradeniya, Sri Lanka. oswinp@pdn.ac.lk

Reproduction in Domestic Animals = Zuchthygiene
|July 25, 2008
PubMed
Summary

Improving buffalo productivity requires addressing management, nutrition, and health issues. Sustainable application of reproductive technologies, like artificial insemination, is key for smallholder farmers.

Area of Science:

  • Animal Science
  • Reproductive Biology
  • Livestock Management

Background:

  • Domestic buffalo are vital livestock for smallholder farmers in developing nations, especially Asia.
  • Buffalo reproductive biology shares similarities with cattle but has unique characteristics impacting productivity.
  • Reproductive efficiency in smallholder systems is often hindered by climate, management, nutrition, and disease.

Purpose of the Study:

  • To review the reproductive biology of domestic buffalo.
  • To identify challenges and opportunities for applying modern reproductive technologies in buffalo.
  • To propose strategies for enhancing buffalo productivity through improved management and technology adoption.

Main Methods:

  • Literature review of buffalo reproductive biology and current technologies.

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Last Updated: Jul 3, 2026

Protocol for Assessing the Relative Effects of Environment and Genetics on Antler and Body Growth for a Long-lived Cervid
09:09

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Published on: August 8, 2017

Transabdominal Ultrasound for Pregnancy Diagnosis in Reeves' Muntjac Deer
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  • Analysis of factors affecting reproductive efficiency in smallholder systems.
  • Evaluation of the success rates and limitations of artificial insemination and hormonal treatments.
  • Assessment of emerging embryo technologies like embryo transfer and cloning.
  • Main Results:

    • Artificial insemination (AI) technology faces infrastructural and logistical challenges in some regions, limiting its impact.
    • Hormonal treatments for anoestrus and oestrus synchronization show variable success rates.
    • Advanced embryo technologies have lower success rates in buffalo compared to cattle.
    • Proper management and nutrition can significantly improve buffalo fertility and productivity.

    Conclusions:

    • Enhancing buffalo productivity necessitates understanding their potential and limitations within specific farming systems.
    • Simple interventions for management, nutrition, and healthcare are crucial.
    • Sustainable application of appropriate reproductive technologies, considering farmer resources, is essential for progress.