The effect of protected fats and conjugated linoleic acid from lactating ewes ration on some bioproductives indices of them and in suckling lambs.

Alexandru Grigorescu, Marius Tataru, Eliza Simiz, Sorin Voia, Lavinia Ştef


In order to satisfy the energy requirements of cows with high milk productions, feeding practices now include the addition of fats in the ration. This can also be used for sheep.The aim of this study was to quantify the effect that the Optima 100 nutritional supplements (protected fats) and CLA (conjugated linoleic acid) administered in the ration of mother ewes during lactation had on certain bioproductives parameters in lambs during lactation. For this aim, the experiment was carried out on 60 sheep of Romanian Ţurcana breed during the lamb lactation period. The 60 sheep were randomly divided into 4 groups, which were given a basic ration in order to meet their daily needs according to their physiological condition. The sheep were grouped as follows: the control group (T1) received only the basic ration (BR); In experimental group 2 (T2), the basic ration was supplemented by 12 g/head/day of the Optima 100 product, representing protected fats; In experimental group 3 (T3), BR was supplemented by CLA in an amount of 12 g/head/day; The two nutritional supplements were added to BR, each in an amount of 12 g/head/day, in experimental group 3 (T4). The use of protectedfats as well as the mixture of protected fats and CLA in the feed of the ewes, determines an improvement of the bioproductive indices of the suckling lambs. The reis also an increase in the amount of milk obtained from sheep fed with food in which these supplements were incorporated and an increase in the fat content of milk.


body weight, crude milk fat, CLA, suckling lambs, protected fat, ewes

Full Text:



Afonso, V. A. C.; Quirino, C. R. and Bueno, M. S. (2008). Intervalo de partosemovelhas da raça Santa Inêssuplementadas com ácidosgraxos. Veterinaria&Zootecnia 15:129.

Anderson Elias Bianchi, Vicente de Paulo Macedo, Aleksandro Schafer Da Silva, André Luís Finkler da Silveira, João Ari Gualberto Hill, Talyta Zortéa, Robson Marcelo Rossi, Rafael Batista (2018) Effect of the addition of protected fat from palm oil to the diet of dairy sheep, RevistaBrasileira de Zootecnia, R. Bras. Zootec., 47:e20160137,,

Brito, M. A.; González, F. D.; Ribeiro, L. A.; Campos, R.; Lacerda, L.; Barbosa, P. R. and Bergmann, G. (2006). Composição do sangue e do leitee movinos leiteiros do sul do Brasil: Varia çõesna gestação e lactação. Ciência Rural 36:942-948.

Bencini, R. and Pulina, G. (1997). The quality of sheep milk: A review. Australian Journal of Experimental Agriculture 37:485-504.

Bona-Filho, A.; Otto, C.; Brondani, L. F.; Sá, J. L.; Yada, R. S. and Sotomaior, C. S. (1994). Efeitos da utilização de diferentes níveis de saiscálcicos de ácido sgraxos no desempenho de ovelhas no pós-parto. Revista de Ciências Agrarias 13:111-117.

Sanz Sampelayo, M. R.; Chilliard, Y.; Schmidely, P. and Boza, J. (2007). Influence of type of diet on the fat constituents of goat and sheep milk. Small Ruminant Research 68:42-63.

Bianchi, A. E.; Macedo, V. P.; Duarte, M. M. F.; Lopes, L. S.; Stefani, L. M.; Rossett, J.; Klauck, V.; Radavelli, W.; Pazinato, R.; Bottari, N. B. and Da Silva, A. S. (2014a). The effect of palm oil addition to the diet of dairy sheep on the immune response. Journal Animal Physiology and Animal Nutrition 98:446-452.

Cardellino, R. A. and Benson, M. E. (2002). Lactation curves of commercial ewes rearing lambs. Journal of Animal Science 80:23-27.

Castro T,Manso T, Jimeno V, Del Alamo M, Mantecón AR (2009) Effects of dietary sources of vegetable fats on performance of dairy ewes and conjugated linoleic acid (CLA) in milk. Small Rumin Res 84, 47-53

Chilliard Y, Ferlay A, Rouel J, Lamberet G (2003) A Review of Nutritional and Physiological Factors Affecting Goat Milk Lipid Synthesis and Lipolysis. J Dairy Sci 86, 1751-1770

Chilliard Y, Ferlay A (2004) Dietary lipids and forages interactions on cow and goat milk fatty acid composition and sensory properties. ReprodNutr Dev 44, 467-492

Kramer JKG, Parodi PW, Jensen RG, Mossoba MM, Yurawecz MI’, Adlof RO. A proposed common name for the major conjugated linoleic acid isomer found in natural products. Lipids 1998; 33: 835.

Ribeiro, L. A. O.; Mattos, R. C.; Gonzalez, F. H. D.; Wald, V. B.; Silva, M. A. and La Rosa, V. L. (2004). Perfil metabólico de ovelhas Border Leicester x Texel durante a gestação e a lactação. Revista Portuguesa de Ciências Veterinarias 99:155-159.

Reynolds CK, Cannon VL, Loerch SC (2006) Effects of forage source and supplementation with soybean and marine algal oil on milk fatty acid composition of ewes. Anim Feed Sci Technol 131 SI, 333-357

Palmquist, D. and Mattos, W. (2006). Metabolismo de lipídeos. p.151-182. In: Nutrição de ruminantes. Berchielli, T. T.; Pires, A. V. and Oliveira, S. G., eds. Funep, Jaboticabal.

Santos Marcos Paulo, Marcelo Marcondes de Godoy, Cleber Luiz de Sousa, Roberta de Moura Assis and Cassius Vinicius Barbosa Sena, 2017, Productive and reproductive performances of Santa Inês ewes fed diets supplemented with protected fat in the postpartum, Pesq. agropec. bras., Brasília, v.52, n.7, p.548-556,

Terréa M., Nudda A., Boea F., Gaias G., Bacha A., (2011), Performance,immuneresponseandfatty acid profile in lambssupplementedwith a CLA-mixture, Animal Feed Science and Technologyvolume 165, issues 1–2, Pages 1-7

Zhang, R.; Mustafa, A. F. and Zhao, X. (2006). Effects of flaxseed supplementation to lactating ewes on milk composition, cheese yield, and fatty acid composition of milk and cheese. Small Ruminant Research 63:233-241.


  • There are currently no refbacks.

Copyright (c) 2021 Scientific Papers Animal Science and Biotechnologies

Scientific Papers Animal Science and Biotechnologies publish open access articles under the terms of the Creative Commons Attribution 4.0 Licence (read full legal code).


ISSN print 1841 - 9364
ISSN online 2344 - 4576
ISSN-L  1841 - 9364
(former ISSN 1221-5287, E-ISSN 1841-9364)

PAPER ACCESS: Full text articles available for free
FREQUENCY: Semiannual

Banat´s University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara
Bioengineering Faculty of Animal Resources
300645, Timişoara, Calea Aradului 119, Romania

E-mail: spasb [at]
Phone: +40-256-277160, Fax.: +40-256-277110