Results 91 to 100 of about 59,533 (287)

Causes and Influences of Repeat Breeding in Beef Cattle

open access: yes, 1985
Repeat-breeding females were classified as those females nonpregnant after two consecutive breeding seasons of 45 to 60 days\u27 duration. Females were either naturally mated or artificially inseminated and exposed to clean-up bulls.
Echternkamp, Sherrill E.   +1 more
core  

Trace minerals profile of blood serum and estrual mucus in repeat breeder Kankrej cows

open access: yesVeterinary World, 2013
Aim: The study was carried out with an idea to ascertain involvement of trace minerals in failure of conception in Knakrej cow. Materials and Methods: The animals under study were comprised of 10 normal (Group-I) and 20 repeat breeder (Group-II) Kankrej ...
N F Chaudhari   +5 more
doaj   +1 more source

On repeat breeding in dairy heifers [PDF]

open access: yes, 2002
Reproductive efficiency is essential for profitable dairy farming. Some heifers require several artificial inseminations (AIs) to conceive, and after repeated pregnancy failures, they are usually culled. The aim of this thesis is to contribute to the characterisation of repeat-breeder heifers (RBH), focusing on the oestrous period.
openaire  

Directed evolution of enzymes at the crossroads of tradition and innovation

open access: yesFEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova   +2 more
wiley   +1 more source

Detection of Luteinizing Hormone Receptor in Holstein Friesian Dairy Cows Undergoing Repeat Breeding [PDF]

open access: yes
The tropical climate in Indonesia will cause heat stress in imported cattle, such as Holstein Friesian dairy cows, which farmers in East Java Province widely keep.
Angga Prastiya, Ragil   +2 more
core   +1 more source

Pathways and pitfalls: a qualitative study of student experiences in biomedical science education

open access: yesFEBS Open Bio, EarlyView.
Biomedical science students from underrepresented backgrounds face barriers including financial strain, disrupted laboratory access and cultural exclusion. Peer networks provide vital support when institutional systems are difficult to navigate. To create inclusive learning environments and achieve academic success, educators should blend active, hands‐
Olivia J. Russell   +8 more
wiley   +1 more source

Sex allocation and reproductive costs in a gull with a long breeding season

open access: yes, 2004
The Silver Gull is a small gull (265 - 450g), which exhibits sexual dimorphism, with males larger than females. It has a protracted laying period of about 8 months over the winter on Penguin Island in Western Australia.
Lamont, Christine Rae
core  

Repeat breeding in buffaloes: Prevalence, Risk factors, Diagnosis and Treatment

open access: yes
<p> </p> <p><span>Failure of pregnancy establishment referred to as repeat breeding (RB) is one of the biggest reproductive problems in female buffaloes, however compared to cattle the incidence of repeat breeding in the ...
Dr. Abhay Kumar Meena *1, Dr.Vikram Singh Gurjar2, Dr. Virendra Kumar3 and Dr. Arvind Kumar
core   +1 more source

Management of repeat breeding in bovine by herbal combination [PDF]

open access: yesJournal of Entomology and Zoology Studies, 2022
Dr. Pankaj Dutta   +8 more
openaire   +1 more source

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