Effects of suppressing cortisol following castration of bull calves on adrenocorticotropic hormone, in vitro interferon-gamma production, leukocytes, acute-phase proteins, growth, and feed intake.

Fisher, Andrew; Crowe, M.A.; O'Nualláin, E M; Monaghan, M. L.; Prendiville, Daniel J.; O’Kiely, P.; Enright, W. J.

doi:10.2527/1997.7571899x

Cited by 58 publications

(32 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…On the other hand, in the current study the N : L ratio did not differ with age at weaning, as in the study of Smith et al (2003), who stated that there was no immunosupression or increased predisposition to illness associated with age at weaning. Specifically, EW calves had an increase in total WBC numbers and the N : L ratio 48 h after weaning, showing similar values as those described by Fisher et al (1997) in 5-month-old bull calves following surgical castration. This increase in WBC numbers was largely due to increased numbers of neutrophils, which is the result of their decreased adhesion to the epithelial cells of the blood vessels, and increases neutrophil circulation as a guard against an infection.…”

Section: Discussionsupporting

confidence: 69%

Effect of age at weaning on the physiological stress response and temperament of two beef cattle breeds

Alibés

Casasús

Palacio

2009

Animal

View full text Add to dashboard Cite

The study was conducted to evaluate the effect of age at weaning and breed on the stress response of calves to weaning and their temperament. At calving, 14 Parda de Montañ a calves and 14 Pirenaica calves were randomly assigned to either early weaning (at 90 days) or traditional weaning (at 150 days) treatment. During nursing, calves were allowed to suckle their dams twice a day for 30 min. After weaning, calves were placed in an adjacent barn without access to their dams, where they remained for 7 days. On day 8 after weaning, they were transported to a feedlot where they received an intensive diet. Blood samples were taken 168 h before weaning (baseline) and 6, 24, 48 and 168 h after weaning for cortisol, fibrinogen and haematology analyses, and temperament was measured 90 and 180 days after weaning with the flight speed test. Cortisol concentration increased after weaning, irrespective of age at weaning. Early-weaned calves had a lower fibrinogen baseline and a greater increase in fibrinogen concentrations 48 h after weaning than traditionally weaned calves. Moreover, fibrinogen concentration returned to baseline values 168 h after weaning in traditionally weaned calves, whereas it remained high in early-weaned calves. Concerning breed effects, Pirenaica calves had higher cortisol concentration and fibrinogen increments after weaning than Parda de Montañ a calves. Slight alterations occurred after weaning in haematology, but all parameters returned to baseline values 168 h after weaning, with no significant effects of age at weaning or breed. Despite the absence of clinical signs, early-weaned calves of both breeds suffered marginal anaemia, according to haemoglobin values. Regardless of age at weaning, Pirenaica calves had greater reactivity to human presence than Parda de Montañ a calves, according to their higher flight speed values measured. Finally, early-weaned calves were lighter than traditionally weaned calves at weaning, but had similar weight gains in the feedlot. Consequently, they needed an additional 40 days to reach the target weight, irrespective of breed. Therefore, age at weaning had no major effects on the stress response to weaning or temperament, but early weaning increased the length of the feedlot period. On the other hand, Pirenaica calves were more reactive than Parda de Montañ a calves to the stress of weaning and human presence.

show abstract

Section: Discussionsupporting

confidence: 69%

Effect of age at weaning on the physiological stress response and temperament of two beef cattle breeds

Alibés

Casasús

Palacio

2009

Animal

View full text Add to dashboard Cite

show abstract

“…15 Castration has been shown to elicit physiological stress, inflammatory reactions (indicated by acute phase proteins), painassociated behaviour, suppression of immune function, and a reduction in performance to varying degrees. 16,17 Earlier studies on acute effects of burdizzo castration on hematological and biochemical parameters in goats have been reported. 18,19 Examining blood for their constituents is used to monitor and evaluate health and nutritional status of animals.…”

Section: Introductionmentioning

confidence: 99%

Comparison in haematological and biochemical changes in normal, acute and chronically castrated West African Dwarf goats

Olaifa

2018

Int J Res Med Sci

View full text Add to dashboard Cite

Background: Castration is one of the frequent management practices in large animal husbandry and burdizzo castration has been shown to produce fewer long-term behavioral signs of pain and distress than banding. Castration is known to reduce virility and aggression due to the elimination of testicular androgens. Methods: This is a comparative study of hematological and biochemical parameters in intact, acute and chronically castrated West African dwarf goats. Twelve adult West African Dwarf bucks weighing between 8 to 14 kg randomly divided into 3 groups of intact, acute and chronic castrated. They were castrated using burdizzo castrator. Hematological and biochemical parameters were estimated by standard laboratory procedures. Results: There were significant decreases (P<0.05) in the PCV, Hb, RBC, WBC and MCH of acute and chronically castrated goat compared to the control group. The MCV and platelets increased significantly in acute and chronically castrated goat; while the neutrophil and lymphocyte showed no significant changes. The result also showed no significant changes in Na , AST and Creatinine. Mg 2+ and ALT significantly increased in chronically castrated goats compared with the acutely castrated goats while Zinc increased significantly (P<0.05) in acute castrated compared with the control goats. Conclusions: Therefore, from this study, either acute or chronic castration in goats have no detrimental effect on blood electrolytes, but mainly deter the hematopoietic process in the animal owing to testosterone and androgen depletion in castrate animals.

show abstract

“…Banding is not associated with changes in the Hp concentration [41], whereas castration is followed by an increased Hp level Cattle Experimental local aseptic inflammation [22,28] Infection with bovine virus diarrhea virus and Pasteurella haemolytica [61] Experimental infection with P. multocida [33] Experimental infection with P. haemolytica [87] Infection with bovine herpes virus 1 and P. haemolytica A1 [58] Experimental infection with bovine respiratory syncytial virus [65] Natural infections with foot-and-mouth disease virus [81] Mastitis [40,68,70,130,152] Various acute infections under field conditions [164] Clinical respiratory tract disease [188] Various inflammatory diseases [6] Acute inflammations [104] Castration [35,47,50,51,52] Ruminotomy [119] Metritis [71,165,166] Severe uterine bacterial post partum contamination [160] Fatty liver (hepatic lipidosis) [87,124,192] Nonfeeding for 3 days [88] Starvation for 2 days combined with Dexamethasone treatments [193] Transportation for 2 days [120] Major injuries at slaughter/culling [69,149] Horse Experimental aseptic arthritis [80] Experimental local aseptic inflammation [113,171] Experimentally induced noninfectious ...…”

Section: Bovine Haptoglobinmentioning

confidence: 99%

Application of acute phase protein measurements in veterinary clinical chemistry

2004

View full text Add to dashboard Cite

-The body's early defence in response to trauma, inflammation or infection, the acute phase response, is a complex set of systemic reactions seen shortly after exposure to a triggering event. One of the many components is an acute phase protein response in which increased hepatic synthesis leads to increased serum concentration of positive acute phase proteins. The serum concentration of these acute phase proteins returns to base levels when the triggering factor is no longer present. This paper provides a review of the acute phase proteins haptoglobin, C-reactive protein and serum amyloid A and their possible use as non-specific indicators of health in large animal veterinary medicine such as in the health status surveillance of pigs at the herd level, for the detection of mastitis in dairy cattle and for the prognosis of respiratory diseases in horses.

show abstract

Effects of suppressing cortisol following castration of bull calves on adrenocorticotropic hormone, in vitro interferon-gamma production, leukocytes, acute-phase proteins, growth, and feed intake.

Cited by 58 publications

References 0 publications

Effect of age at weaning on the physiological stress response and temperament of two beef cattle breeds

Effect of age at weaning on the physiological stress response and temperament of two beef cattle breeds

Comparison in haematological and biochemical changes in normal, acute and chronically castrated West African Dwarf goats

Application of acute phase protein measurements in veterinary clinical chemistry

Contact Info

Product

Resources

About