Digestion, Absorption and Transport of Lipids in Ruminant Animals

Noble, R. C.

doi:10.1016/b978-0-08-023789-3.50007-6

Cited by 49 publications

(48 citation statements)

References 264 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The daily secretion of 282-555 g BA was equivalent to 2.3-4.6 gldaylkg BWT0.75, which is in accordance with sheep data, 3-5 gldaylkg BWT'.7S (Caple & Heath, 1972;Noble, 1978) and pig data, 3-5 g/day/kg BWT".75 (Juste et al, 1983a;. The lower BA secretion for the fish oil diets indicates th3t less BA were secreted when more unsaturated FA were fed, as also found in calves (Jenkins et al, 1988).…”

Section: Discussionsupporting

confidence: 74%

“…However, these estimates have low precision, which may explain part of the large difference in the present study between estimated endogenous FA and the FA output in bile '(16-32 g, equivalent to 0.13-0.26 gl day/kg BWT".'3. This was slightlylower than most data for sheep, 0.2-0.8 g/day/kg B W 7 ' (Leat & Harrison, 1969;Lennox et al, 1969;Noble, 1978) and for pigs, 0.3-0.7 g/day/kg BWT".7s (Juste et aI.,I983b).…”

Section: Discussionmentioning

confidence: 73%

See 1 more Smart Citation

Fatty Acid Digestibility in Lactating Cows Fed Increasing Amounts of Protected Vegetable Oil, Fish Oil or Saturated Fat

Børsting

Weisbjerg

Hvelplund

1992

Acta Agriculturae Scandinavica, Section A - Animal Science

View full text Add to dashboard Cite

Fatty acid digestibility in lactating COWS fed increasing amounts of protected vegetable oil, fish oil or saturated fat. Accepted November 27, 1991. Acta Agric. Scand., Sect. A, Animal Sci. 42: 148-156, 1992. Fatty acid digestion was studied in three dairy cows cannulated in the rumen, duodenum and ileum. Cows were fed encapsulated fat sources (vegetable oil, saturated fat and fish oil). A preperiod diet was fed with no added fat. In a graeco-latin design nine diets comprising three levels of each of the three fat sources were fed. The preperiod diet contained 230 g fatty acids (FA), whereas the three other fats were fed at about 550, 850 and 1150 g FA/day. The feed-ileum true digestibility of total FA was 95, 47 and 86% for vegetable, saturated and fish fat, respectively. The true digestibility of FA was for all fat sources independent of fat level. The FA digestibility of C16:O was higher than that of C18:O. The experiment supports the theory that unsaturated FA has a synergistic effect on the digestibility of saturated FA. Bile acid secretion was estimated to be 282-550 g/day, with the lowest secretion for fish fat diets. Secretion was I independent of the amount of fat fed.

show abstract

Section: Discussionsupporting

confidence: 74%

Section: Discussionmentioning

confidence: 73%

Fatty Acid Digestibility in Lactating Cows Fed Increasing Amounts of Protected Vegetable Oil, Fish Oil or Saturated Fat

Børsting

Weisbjerg

Hvelplund

1992

Acta Agriculturae Scandinavica, Section A - Animal Science

View full text Add to dashboard Cite

show abstract

“…An increase in dietary lipids leads to elevation of plasma total cholesterol and the supply of lipoproteins which play significant role in regulating ovarian steroidogenesis [25]. This increment in serum total cholesterol concentration in the CSFA-treated ewes may be due to action of fat supplementation which increased the lipoprotein cholesterol export by the intestine [26]. …”

Section: Discussionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

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.

show abstract

“…Although small in amounts, C15:0 and C17:0, which were not present in diets, appeared in duodenal contents. These odd-numbered fatty acids are unique to ruminal microorganisms (Noble, 1981). Extensive biohydrogenation was shown by the tremendously increased C18:0 in the duodenal flow compared with dietary amounts.…”

Section: Flow Of Long-chain Fatty Acids To the Intestinementioning

confidence: 99%