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Pathak AK, Dutta N, Banerjee PS, et al. Influence of Dietary Supplementation of Condensed Tannins through Leaf Meal Mixture on Intake, Nutrient Utilization and Performance of Haemonchus contortus Infected Sheep. Asian-Australas J Anim Sci. 2013;26(10):1446-58doi: 10.5713/ajas.2013.13066.
Pathak, A. K., Dutta, N., Banerjee, P. S., Pattanaik, A. K., & Sharma, K. (2013). Influence of Dietary Supplementation of Condensed Tannins through Leaf Meal Mixture on Intake, Nutrient Utilization and Performance of Haemonchus contortus Infected Sheep. Asian-Australasian journal of animal sciences, 26(10), 1446-58. https://doi.org/10.5713/ajas.2013.13066
Pathak, A K, et al. "Influence of Dietary Supplementation of Condensed Tannins through Leaf Meal Mixture on Intake, Nutrient Utilization and Performance of Haemonchus contortus Infected Sheep." Asian-Australasian journal of animal sciences vol. 26,10 (2013): 1446-58. doi: https://doi.org/10.5713/ajas.2013.13066
Pathak AK, Dutta N, Banerjee PS, Pattanaik AK, Sharma K. Influence of Dietary Supplementation of Condensed Tannins through Leaf Meal Mixture on Intake, Nutrient Utilization and Performance of Haemonchus contortus Infected Sheep. Asian-Australas J Anim Sci. 2013 Oct;26(10):1446-58. doi: 10.5713/ajas.2013.13066. PMID: 25049728; PMCID: PMC4093080.
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Asian-Australas J Anim Sci. 2013 Oct;26(10):1446-58. doi: 10.5713/ajas.2013.13066.

Influence of Dietary Supplementation of Condensed Tannins through Leaf Meal Mixture on Intake, Nutrient Utilization and Performance of Haemonchus contortus Infected Sheep.

Asian-Australasian journal of animal sciences

A K Pathak, Narayan Dutta, P S Banerjee, A K Pattanaik, K Sharma

Affiliations

  1. Centre of Advanced Faculty Training in Animal Nutrition, Indian Veterinary Research Institute, Izatnagar-243 122 (U.P.), India.

PMID: 25049728 PMCID: PMC4093080 DOI: 10.5713/ajas.2013.13066

Abstract

The study assessed the effect of dietary supplementation of leaf meal mixture (LMM) containing condensed tannins (CT) on feed intake, nutrient utilization and performance of sheep infected with Haemonchus contortus. Eighteen adult sheep of similar age and body weight (25.03±1.52) were included in this study and out of these, 12 sheep were infected with single dose of infective third stage larvae of H. contortus at 2,000 larvae per sheep. The experimental sheep were allocated in three different groups' i.e. negative control (NC; no infection), control (C; H. contortus infected) and treatment (T; H. contortus infected+CT at 1.5% of the DM through LMM) and the experiment was conducted for a period of 90 d. The intake of dry matter (DM), organic matter (OM) and digestibility of DM, OM, neutral detergent fibre (NDF) and acid detergent fibre (ADF) were comparable among three animal groups. However, digestibility of crude protein (CP) and ether extract (EE) were significantly (p<0.05) higher in NC group as compared to both C and T groups. Nitrogen (N) retention (g/d or % of N intake) was significantly (p = 0.038) lower in C group as compared to T and NC groups. Daily intake (g/kg W(0.75)) of digestible crude protein (DCP), digestible organic matter (DOM) and total digestible nutrient (TDN) did not differ significantly (p<0.05) in the three groups. Haemoglobin (Hb) and packed cell volume (PCV) were significantly (p<0.001) higher in treatment group as compared to control. The level of Hb and PCV reduced (p<0.001) after 30 days of experimental feeding. CT significantly (p<0.001) reduced serum urea in T group as compared to NC and C groups. Serum proteins differed significantly (p<0.01) among the three groups. The activity of serum enzymes AST, ALT, ALP and LDH were also statistically non significant (p<0.05) among treatments. The weight of abomasal lymph nodes (ALN) in T group was higher (p<0.05) than in C group. Treatment group had lower (p<0.05) total worms and fecal egg count compared to control group. It may be concluded that dietary supplementation of CT through LMM significantly improved the N retention, and inhibited the different developmental stages of Haemonchus contortus in experimental sheep.

Keywords: Condensed Tannins; Haemonchus contortus; Leaf Meal Mixture; Nutrient Utilization; Performance; Sheep

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