Stimulation of calcium absorption and reduction in susceptibility to fasting-induced hypocalcaemia in pregnant ewes fed vegetable oil

Wilson, G. F.

doi:10.1080/00480169.2001.36214

Cited by 6 publications

(3 citation statements)

References 11 publications

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“…This increase might be due to increase in phospholipid contents in CSFA. The results disagree with that of Wilson [35] and Ghattas and Nasra [10], and these differences might be due to dose difference.…”

Section: Discussioncontrasting

confidence: 99%

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Effect of Calcium Soap of Fatty Acids Supplementation on Serum Biochemical Parameters and Ovarian Activity during Out-of-the-Breeding Season in Crossbred Ewes

El-Nour¹,

Nasr

Hassan³

2012

The Scientific World Journal

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This experiment aimed to evaluate the effect of calcium soap of fatty acid (CSFA) supplementation on serum biochemical and hormones and ovarian activity during out-of-the-breeding season in ewes. Twelve crossbred ewes, 2-3 years of age and weighting 45–55 kg, were allocated into two equal groups. The first group was control and the other was treated with 50 g/head of CSFA. All ewes were fed basal diet and treated with 60 mg of medroxy progesterone acetate intravaginal sponge for 12 day. At the third day of sponge removal, the CSFA-treated group was given 50 g/head of CSFA daily for two estrous cycles. During the estrus phase, ovarian activity was detected using ultrasonography in both groups. All ewes were then subjected to natural breeding and conception rate. Blood samples were collected from all ewes during treatment period. Results revealed significant (P < 0.05) increases in serum cholesterol, triglycerides, low-density lipoprotein cholesterol, glucose, and progesterone levels with decrease in calcium and phosphorous levels in treated group. In treated group, normal-size ovaries and more than one follicle on the ovaries were detected and pregnancy rate increased. In conclusion, CSFA supplementation was effective to maintain the reproductive performance when ewes were out of the breeding season.

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Section: Discussioncontrasting

confidence: 99%

“…These results agree with that obtained by Wilson [35], Abo-Donia et al [36], and Ghattas and Nasra [10]. Moreover, the results of the present study revealed significant increase in serum phosphorous levels and significant decrease in the Ca/P ratio after four weeks of treatment compared with control.…”

Section: Discussionsupporting

confidence: 93%

Effect of Calcium Soap of Fatty Acids Supplementation on Serum Biochemical Parameters and Ovarian Activity during Out-of-the-Breeding Season in Crossbred Ewes

El-Nour¹,

Nasr

Hassan³

2012

The Scientific World Journal

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“…(2002b, 2003) described positive results in feeding zeolites. Wilson (2001a,b) also reports preventive effects in ewes that were fed soy oil. Also, Katsoulos et al.…”

Section: Introductionmentioning

confidence: 99%

Urinary calcium excretion in non-lactating dairy cows in relation to intake of fat-coated rice bran

Martín-Tereso

Derks

Laar

et al. 2010

Journal of Animal Physiology and Animal Nutrition

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At calving, many older cows fail to compensate the sudden demand of calcium by an adequate activation of intestinal absorption. This results in a variable degree of hypocalcaemia. Reducing intestinal availability of calcium during the close-up period can prevent milk fever. Fat-coated rice bran (FCRB) was investigated for its potential to reduce Ca availability in pre-calving cows. Fat-coated rice bran was incubated in situ to estimate ruminal degradation of dry matter and phytic acid. Also, seven dry multiparous dairy cows were used for a feeding trial in three periods of approximately 1 week each: P1: adaptation; P2: feeding of 2 kg of FCRB and P3: withdrawal of FCRB. Feed intake was recorded and daily urine samples were analysed for pH, Ca and creatinine. The bypass fraction of phytic acid (passage rate: 5%/h) was 30%. Fat-coated rice bran depressed dry matter intake in P2, resulting in a lower Ca intake. In P2 urine pH and calcium excretion were lower. Daily calcium excretion decreased after introduction of FCRB, peaked after withdrawal and dropped 2 days later. Changes in urinary Ca excretion by feeding FCRB indicate that FCRB affected Ca homeostasis in dry multiparous dairy cows.

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Treatment and Control of Peri-Parturient Metabolic Diseases: Pregnancy Toxemia, Hypocalcemia, Hypomagnesemia

Brozos

Mavrogianni

Fthenakis

2011

Veterinary Clinics of North America: Food Animal Practice

126

104

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Stimulation of calcium absorption and reduction in susceptibility to fasting-induced hypocalcaemia in pregnant ewes fed vegetable oil

Cited by 6 publications

References 11 publications

Effect of Calcium Soap of Fatty Acids Supplementation on Serum Biochemical Parameters and Ovarian Activity during Out-of-the-Breeding Season in Crossbred Ewes

Effect of Calcium Soap of Fatty Acids Supplementation on Serum Biochemical Parameters and Ovarian Activity during Out-of-the-Breeding Season in Crossbred Ewes

Urinary calcium excretion in non-lactating dairy cows in relation to intake of fat-coated rice bran

Treatment and Control of Peri-Parturient Metabolic Diseases: Pregnancy Toxemia, Hypocalcemia, Hypomagnesemia

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