Iodine Supplementation of Leucaena leucocephala Diet for Goats. II. Effects on Blood Metabolites and Thyroid Hormones

Rajendran, D.; Pattanaik, A.K.; Khan, S. A.; Bedi, S. P. S.

doi:10.5713/ajas.2001.791

Cited by 12 publications

(9 citation statements)

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“…The hypoglycaemic effect of leucaena observed in the present study, as was also reported by Kailas (1991), appeared to have been overcome by iodine supplementation. Similar observations of increased glucose concentration with iodine supplementation have been observed (Rajendran et al 2001 b). Contrary to the present observations, Yami et al (2000) observed that plasma urea concentration showed an increase with higher dietary concentrations of leucaena.…”

Section: Discussionsupporting

confidence: 80%

“…In previous studies involving adult goats, improved nutrient utilization and nitrogen retention when leucaena-containing diets were fortified with iodine has been observed (Pattanaik et al 2000; Rajendran et al . 2001 a , b ). The present study, therefore, was undertaken to ascertain the effects of iodine supplementation in growing kids with a moderate content of leucaena leaf meal fed a wheat straw-based diet.…”

Section: Introductionmentioning

confidence: 99%

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Influence of iodine on nutritional, metabolic and immunological response of goats fed Leucaena leucocephala leaf meal diet

2007

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SU MMARYFifteen indigenous nondescript kids (8 . 2 kg; 8 months initial age), randomly allotted into three equal groups, were used to study the effects of supplementation of extra iodine on their performance when fed a leucaena (Leucaena leucocephala) leaf meal containing diet. Group I (CON) was fed a control concentrate supplement consisting of a conventional protein source whereas the other two groups (LL and LLI) were fed a concentrate containing leucaena leaf meal so as to supply 0 . 5 of the net crude protein (CP) requirements. Additionally, animals in group LLI were given supplemental iodine (as potassium iodide solution) at 0 . 25 mg/head/day. Wheat straw was provided ad libitum as the sole source of roughage during the 120 days of the experimental period. A metabolism trial, conducted at the end of the feeding trial, revealed no variation in the dry matter intake (DMI) among the groups. A significant (P<0 . 01) decline was evident in digestibility of CP in both the leucaena-fed groups (0 . 463 and 0 . 482 versus 0 . 586) whilst that of the other organic components remained unaffected. Animals on the LL diet exhibited lower (P<0 . 01) nitrogen retention and average daily gain (ADG) in live weight (LW). Blood collected periodically was analysed for the thyroid hormones triiodothyronine (T 3 ) and thyroxine (T 4 ) as well as other biochemical parameters. At the end of the experimental feeding, the cell-mediated immune (CMI) response of the goats was assessed by intra-dermal inoculation of phytohaemagglutinin-P and measuring the change in skin thickness at various postinoculation hours. The results revealed that the serum concentration of glucose was significantly (P<0 . 05) higher in the LLI group of animals fed leucaena with iodine. The concentration of cholesterol in serum of LL animals increased significantly (P<0 . 05) compared to the CON and LLI groups. No variation due to dietary interventions was evident in other indices of metabolic profile. While the concentration of circulating T 3 remained unaffected due to dietary intervention, that of T 4 reduced significantly (P<0 . 05) in the LL group. Moreover, the T 4 concentration in the LLI group remained similar to that of control indicative of positive impact of iodine supplementation. The immune response revealed that the skin thickness of animals in the LL group was lower (P<0 . 05) as compared to the control, indicating a compromise of CMI response due to feeding of leucaena leaf meal. Supplementation of iodine appeared to be partially effective in potentiating the response. In conclusion, iodine supplementation could be adopted as a strategic management strategy to ameliorate the negative impacts of feeding leucaena leaf meal in growing kids.

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Section: Discussionsupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Influence of iodine on nutritional, metabolic and immunological response of goats fed Leucaena leucocephala leaf meal diet

2007

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“…Compared to data of Ouanes et al (2011) and Gwaze et al (2012) our results of ewes were higher. Rajendran et al (2001) did not reveal any signifi cant infl uence of supplementation of 0.407 mg iodine per kg of dietary dry matter on ALP concentration in goats. As the increased activity of ALP is associated with changes in the thyroid activity (Brunová, 2008), it is necessary to pay greater attention to functional risks of excessive iodine intake.…”

Section: Resultsmentioning

confidence: 71%

“…Lower haemoglobin concentration was also measured by Trávníček et al (2001) and Soliman et al (2012) in lactating ewes. Rajendran et al (2001) studied the infl uence of iodine at an amount of 0.407 mg/kg of dietary dry matter on haemoglobin concentration in goats; these authors did not fi nd out any signifi cant changes in its concentration. The highest values of haemoglobin were measured in both groups on day 10 post partum while they were markedly higher at higher iodine intake.…”

Section: Resultsmentioning

confidence: 99%

“…This fi nding was contradictory to Trávníček et al (2001), who found out a lower concentration of total protein in ewes supplemented with iodine and selenium. Rajendran et al (2001) concluded in their experiment with goats that the level of total protein was not infl uenced by supplementation of 0.407 mg iodine per kg dry matter. Compared to data of Taghipour et al (2010) and Soliman et al (2012), total protein concentration a er parturition was similar in the studied ewes of both groups.…”

Section: Resultsmentioning

confidence: 99%

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The Influence of High Iodine Intake on Chosen Blood Parameters of Sheep

Dušová¹,

Trávníček²,

Peksa³

et al. 2014

Acta Univ. Agric. Silvic. Mendelianae Brun.

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The objective of the study was to evaluate the infl uence of high iodine intake in ewes on haematological and biochemical parameters of the blood of ewes and their lambs. Twelve pregnant ewes of the Sumava sheep breed and their newborn lambs were included in the experiment. Control group (A) consisted of 6 ewes with 7 lambs and experimental group (B) comprised 6 ewes with 6 lambs. The feed ration was enriched with calcium iodate by addition of 3 and 5 mg/kg in group A and group B, respectively. The studied parameters in ewes and lambs were haematocrit value, red blood cell count and haemoglobin concentration in blood, concentration of urea and total proteins, and alkaline phosphatase activity in blood plasma. No diff erences were found out in haematocrit value, red blood cell count, concentration of haemoglobin and total proteins between groups of ewes A and B with their lambs. Urea concentration and alkaline phosphatase activity were higher in ewes of group B and their lambs during the entire experimental period. An increase in the values of urea and alkaline phosphatase in the group of ewes and lambs with higher iodine intake indicates a potential risk of high iodine intake associated with changes in the thyroid activity in ewes and their lambs.

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Long-term Effects of Feeding a Novel Phytoadditive on Nutrient Utilization, Growth Performance, Metabolic Profile and Antioxidant Status of Goats

et al. 2017

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Iodine Supplementation of Leucaena leucocephala Diet for Goats. II. Effects on Blood Metabolites and Thyroid Hormones

Cited by 12 publications

References 0 publications

Influence of iodine on nutritional, metabolic and immunological response of goats fed Leucaena leucocephala leaf meal diet

Influence of iodine on nutritional, metabolic and immunological response of goats fed Leucaena leucocephala leaf meal diet

The Influence of High Iodine Intake on Chosen Blood Parameters of Sheep

Long-term Effects of Feeding a Novel Phytoadditive on Nutrient Utilization, Growth Performance, Metabolic Profile and Antioxidant Status of Goats

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