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INTAS POLIVET
Year : 2020, Volume : 21, Issue : 2
First page : ( 433) Last page : ( 436)
Print ISSN : 0972-1738. Online ISSN : 2249-8796.

Goitrogenic alterations in growing kids fed on rapeseed-mustard cake diets

Palanivel M.1,*, Sharma Kusumakar

Division of Animal Nutrition, ICAR-Indian Veterinary Research Institute (IVRI), Izatnagar, Bareilly - 243122 (Uttar Pradesh)

1Assistant Professor, Department of Animal Nutrition, Veterinary College and Research Institute, TANUVAS, Orathanadu (Tamil Nadu)

*Corresponding author. E-mail: palanivelvet@yahoo.co.in

Online Published on 20 April, 2022.

Abstract

The study was undertaken to investigate the occurrence of Goitrogenic changes in growing kids fed with raw or water soaked rapeseed-mustard cake (RMC) replaced for ground-nut cake in diet. Eighteen male Barbari kids were randomly assigned to three dietary treatments of six each; GNC, RMC-dry and RMC-sani containing ground-nut cake, raw RMC and overnight water soaked (1:3 w/v ratio) RMC, respectively. The respective concentrate mixture and ad lib.wheat straw were offered for an experimental period of 180 days with monitoring the serum Thyroxine (T3 & T4) and SCN levels at 45 days intervals. All the kids were slaughtered; thyroid glands were collected, weighed and studied for histological changes if any. Total glucosinolates (GLS) content of RMC-dry concentrate mixture was 64.28 |jmol/g DM while it was reduced by 31.96% to 43.74 |imol/g DM in RMC-Sani and nil in GNC concentrate mixture. Serum SCN was significantly (P<0.01) higher in RMC treatments as compared to that of GNC. Among RMC treatments, serum SCN was significantly (P<0.01) reduced in RMC-Sani. Serum T3 was similar among the treatments. Serum T4 was significantly (P<0.01) lower for kids of RMC-dry as compared to GNC while it was comparable in RMC-sani with other treatments. Although no significant difference was observed in weight of thyroid glands among the treatments, appreciable goitrogenic changes were noticed in thyroid glands under RMC treatments relative to those of GNC; however, among RMC treatments, intensity of Goitrogenic changes was comparatively low in RMC-sani. Despite reduction in substantial amount of GLS content by water soaking of RMC, comparatively high levels of GLS content of raw or water soaked RMC based diets induced significant but mild goitrogenic changes to growing kids.

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Keywords

Glucosinolate, Goitrogenic, Kid, Rapeseed-mustard cake.

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