Effect of a calcium soap of fatty acids on reproductive characteristics and lactation performance of fat-tailed sheep

Experiments were carried out to study the effect of feeding Megalac, calcium soaps of fatty acids (protected fat), on reproduction and lactation of sheep. In the first experiment, 20 Ghezel and 20 Mehraban cyclic fertile ewes (4-5 years old) were randomly allotted to 4 groups. The control group was...

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Bibliographic Details
Published in:Pakistan journal of biological sciences 2007-07, Vol.10 (14), p.2389-2395
Main Authors: Ghoreishi, S M, Zamiri, M J, Rowghani, E, Hejazi, H
Format: Article
Language:English
Subjects:
Animals
Calcium - chemistry
Estrus
Fatty Acids - administration & dosage
Fatty Acids - chemistry
Female
Lactation
Lipids - blood
Ovarian Follicle - drug effects
Progesterone - blood
Reproduction
Sheep
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Summary:Experiments were carried out to study the effect of feeding Megalac, calcium soaps of fatty acids (protected fat), on reproduction and lactation of sheep. In the first experiment, 20 Ghezel and 20 Mehraban cyclic fertile ewes (4-5 years old) were randomly allotted to 4 groups. The control group was fed with a balanced ration and the other groups received the same diet as well as a daily allowance of 40 g non-protected fat (NP), 40 g protected fat (LP), or 80 g (HP) protected fat. The ewes were fed with their respective rations for one cycle length. Blood samples were collected and analyzed for progesterone (P4), cholesterol (CHOL), High Density Lipoproteins (HDL), Low Density Lipoproteins (LDL) and triacylglycerols (TG). The ewes were slaughtered on their next estrous period and the size and number of follicles in ovaries were recorded. There were no significant effects of feeding fat on ovarian weights, cycle length and follicular numbers in each class, or on the size of the largest follicle. Serum concentrations of P4, CHOL, TG and HDL were greater for HP ewes as compared with the control ewes (p
ISSN:1028-8880
DOI:10.3923/pjbs.2007.2389.2395