The effect of slaframine on salivary output and subacute and acute acidosis in growing beef steers2

Hibbard, B.; Peters, J. P.; Chester, S. Theodore; Robinson, J. A.; Kotarski, Susan F.; Croom, W. J.; Hagler, W. M.

doi:10.2527/1995.732516x

Cited by 37 publications

(24 citation statements)

References 14 publications

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“…Therefore, these chemicals may be useful for physiologically manipulating the animal in production situations, such as the feeding of high-grain, low-roughage diets. Although slaframine administration was shown to prevent the decrease in ruminal pH associated with subacute acidosis (Hibbard et al, 1995a), an extended use of slaframine resulted in reduced feed intake and lower animal response (Hibbard et aI., 1995b). Although slaframine administration was shown to prevent the decrease in ruminal pH associated with subacute acidosis (Hibbard et al, 1995a), an extended use of slaframine resulted in reduced feed intake and lower animal response (Hibbard et aI., 1995b).…”

Section: Physiological Modification Of the Animalmentioning

confidence: 99%

The Rumen Microbial Ecosystem

Hobson¹,

Stewart²

1997

347

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Section: Physiological Modification Of the Animalmentioning

confidence: 99%

The Rumen Microbial Ecosystem

Hobson¹,

Stewart²

1997

347

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“…Some alternatives have been explored including the use of immunizations (Shu et al 1999(Shu et al , 2000, direct fed microbials (Ghorbani et al 2002;Beauchemin et al 2003), and other feed additives (i.e. slaframine, Hibbard et al 1995;malate, Montaño et al 1999). Additionally, many plants, including some forage species in pastures, can produce antimicrobial secondary metabolites that can have beneficial effects on rumen fermentation (Evans and Martin 2000;Benchaar et al 2006;Flythe 2009;Flythe and Kagan 2010).…”

Section: Introductionmentioning

confidence: 99%

Effect of biochanin A on corn grain (Zea mays) fermentation by bovine rumen amylolytic bacteria

2017

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“…Under these conditions, rumen papilla are not fully developed with slower absorption of short chain fatty acids (SCFA), increasing their concentration which leads to a decrease in ruminal pH below physiological limits (Kleen et al., 2003). According to Nordlund and Garrett (1994), SARA can be defined as a condition characterized by a rumen pH below 5.8, with an increased total concentration of SCFA, ratio between acetic, propionic and butyric acid that has been shifted towards propionic and butyric acid, and an elevated concentration of lactic acid in the rumen fluid that does not exceed 5–10 mmol/l (Hibbard et al, 1995). The ruminal wall and its papillae herein play an important role and their development has been described (Dirksen et al., 1984).…”

Section: Introductionmentioning

confidence: 99%

Subacute rumen acidosis in lactating cows: an investigation in intensive Italian dairy herds

Morgante

Stelletta

Berzaghi

et al. 2007

Animal Physiology Nutrition

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Summary Subacute rumen acidosis (SARA) represents one of the most important metabolic disorders in intensive dairy farms that affects rumen fermentations, animal welfare, productivity and farm profitability. The aim of the present study was to study the occurrence of SARA in intensive Italian dairy herds and to determine the relationship between diet composition, ruminal pH and short chain fatty acids (SCFA) concentration. Ten commercial dairy herds were investigated; twelve cows in each herd were selected randomly among animal without clinical signs of disease, with good body condition and between 5 and 60 day‐in‐milk (DIM), to perform rumenocentesis and obtain rumen fluid. Ruminal pH was determined immediately after sampling and concentration of SCFA in ruminal fluid was determined on samples after storage. An other objective of this research was to study in detail the effects of rumenocentesis on animal health: this study could confirm the extreme validity of this technique as ruminal sampling. Results were subject to anova and correlation analysis using sigma stat 2.03. The results indicated the presence of SARA in three herds (more than 33% cows with rumen pH < 5.5), a critical situation (more than 33% cows with rumen pH < 5.8) in five farms and a normal rumen pH condition in two herds. In particular, dairy herds show on average SCFA concentration of 150, 145, 123 mmol/l for low pH, critical pH and normal pH herds respectively. There were not significant differences among diet composition even if herds with SARA showed a light discordance between initially chemistry composition and residual feed. In the affected herds it was not possible to understand the exact causes of SARA. Animal management seems to be one of the most important factors in developing SARA including total mixed ration preparation.

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The effect of slaframine on salivary output and subacute and acute acidosis in growing beef steers2

Cited by 37 publications

References 14 publications

The Rumen Microbial Ecosystem

The Rumen Microbial Ecosystem

Effect of biochanin A on corn grain (Zea mays) fermentation by bovine rumen amylolytic bacteria

Subacute rumen acidosis in lactating cows: an investigation in intensive Italian dairy herds

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