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- Title
Effect of Organic Selenium Supplementation in Diet on Gastrointestinal Tract Performance and Meat Quality of Goat.
- Authors
Samo, Saba Parveen; Malhi, Moolchand; Gadahi, Javed; Yan Lei; Kaciwal, Allah Bux; Soomro, Saeed Ahmed
- Abstract
Ten cross-bred goats of about 4 months of age and 10.5 kg body weight were randomly selected for the study and divided into two groups (n=5/each). Basal diet given to the animals consist of roughage and concentrate at the ratio of 65:35. Group A was kept without any supplementation whereas group B was supplemented with selenium yeast (SY) at the dose rate of 0.3 mg/kg.diet for 8 weeks. The results showed that the weights (% of empty body weight) of rumen (4.18 ± 0.30 vs 3.49 ± 0.10); duodenum (0.32 ± 0.01 vs 0.27 ± 0.01); colon (1.14 ± 0.03 vs 1.06 ± 0.01), caecum (0.62 ± 0.03 vs 0.57 ± 0.01) and the whole large intestine (2.44 ± 0.04 vs 2.32 ± 0.03) significantly increased (P < 0.05) in B compared to A. The weights of liver, heart, kidney and spleen were not significantly different (P > 0.05) between the groups, however, the lung weight increased in B (1.15 ± 0.04 vs 0.99 ± 0.04, P < 0.05) compared to A. Digestibility trails revealed that utilization of dry matter (DM), crude protein (CP) and crude fiber (CF) increased (P < 0.05) by 13.71, 12.02 and 4.78% at week 3 and by 11.11, 11.8 and 3.46 % at week 6 in B compared to A. Among carcass characteristics the carcass dressing % (52.99 ± 0.77 vs 49.41 ± 0.6 ) and leg weight (kg) (1.28 ± 0.06 vs 1.05 ± 0.04) increased (P < 0.05) in B compared to A. The physicochemical properties of meat were not significantly different between the groups except fat content (2.75 ± 0.25 vs 2.00 ± 0.05%, P < 0.096) which tended to increase in B compared to A. These data demonstrated that dietary SY supplementation increased gastrointestinal tract weight and nutrient digestibilities, and improved some carcass characteristics in goats.
- Subjects
SELENIUM in animal nutrition; GASTROINTESTINAL system; MEAT quality; ANIMAL feeding behavior; GOATS; RUMINANTS
- Publication
Pakistan Journal of Zoology, 2018, Vol 50, Issue 3, p995
- ISSN
0030-9923
- Publication type
Article
- DOI
10.17582/journal.pjz/2018.50.3.995.1003