Association between Mannheimia haemolytica infection with reproductive physiology and performance in small ruminants: A review
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Published on: April 30, 2016
Faez Firdaus Abdullah Jesse1,2, Nur Azhar Amira1, Kamarulrizal Mat Isa2
1Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
Abstract:
Mannheimiosis or pneumonic pasteurellosis commonly occurs in small ruminants. Mannheimiosis is caused by Mannheimia haemolytica (M. haemolytica) a Gram-negative coccobacillus producing acute febrile and infectious condition resulting in death of animal if not diagnosed and treated promptly. M. haemolytica serotype A2 is a commensal of the nasopharynx, gaining access to the lungs when host defenses are compromised by stress or infection in small ruminants. Till date, there is a vast literature and research that has been conducted on the pathogenesis of M. haemolytica invariably on respiratory system and its related immune system and mechanisms. From the clinical point of view, infection or diseases involving vital organs will systemically affect the production and performance of the infected animal. Therefore, there is a huge gap of knowledge and research to answer the question whether there is any association between M. haemolytica infection with reproductive physiology and performance in small ruminants and how it affects the productivity level. This review will explore the possibilities of involvement and new potential research to be carried out to determine the involvement of male and female reproductive system with M. haemolytica infection among small ruminants.
Insights
Mannheimiosis, caused by Mannheimia haemolytica, impacts small ruminants. This review explores its potential effects on reproductive health and productivity, highlighting a knowledge gap.
Area of Science:
- Veterinary Medicine
- Microbiology
- Animal Reproduction
Background:
- Mannheimiosis, caused by Mannheimia haemolytica (M. haemolytica), is a significant respiratory disease in small ruminants.
- M. haemolytica, a Gram-negative coccobacillus, can lead to severe illness and death if untreated.
- Existing research primarily focuses on the respiratory and immune system impacts of M. haemolytica.
Purpose of the Study:
- To investigate the potential association between M. haemolytica infection and reproductive physiology in small ruminants.
- To identify knowledge gaps regarding the impact of M. haemolytica on male and female reproductive performance.
- To propose future research directions for understanding this relationship.
Main Methods:
- Literature review of existing studies on M. haemolytica and reproductive health in small ruminants.
- Analysis of clinical observations and potential systemic effects of infection.
- Identification of research methodologies to explore reproductive system involvement.
Main Results:
- A significant gap exists in understanding the link between M. haemolytica infection and reproductive outcomes.
- Systemic effects of infections in vital organs can impact animal production.
- The review highlights the need for dedicated research into reproductive physiology.
Conclusions:
- Further research is crucial to determine if M. haemolytica infection affects reproductive health and performance in small ruminants.
- Understanding this connection could improve disease management and animal productivity.
- This review sets the stage for new investigations into M. haemolytica's reproductive impact.
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