Production, composition, and fatty acid profile of milk from anglo-nubian goats fed avocado (Persea americana Mill.) pulp and oil




conjugated linoleic acid, feed evaluation, lipids, small ruminants


The aim of this study was to examine the effect of including avocado oil in goat diets, because it was the fastest strategy to change the milk fatty acid profile to benefit the health of consumers is increasing the conjugated linoleic acid (CLA), where evaluated intake and milk yield, composition and fatty acid profile. Six lactating Anglo-Nubian goats were evaluated in two 3 × 3 balanced Latin squares. The diet containing avocado pulp reduced DM intake, whereas the oil-supplemented diet increased it, compared to control diet, and the same trend was observed for the other nutrients except Ether Extract, whose intake was higher in the goats fed avocado pulp diet compared to control diet. Milk total solids and fat contents were higher in the group fed the diet with avocado oil than in the control group, which in turn did not differ from the group fed avocado pulp. The other milk components and milk yield were not influenced by the diets. Short-chain fatty acid contents in the milk of the goats supplemented with a lipid source decreased in comparison to control group, whereas the CLA level rose by 56.88 and 66.10% in the milk of the goats fed the pulp- and oil-supplemented diets, respectively. Supplementing unsaturated fatty acids via avocado oil or avocado pulp elevates the CLA concentrations and reduces the short-chain fatty acid content in milk, improving its nutraceutical properties and ultimately benefitting the health of consumers.

Biografia do Autor

F. X. P. López, Instsituto Nacional de Pesquisas Florestais, Agrícolas e Pecuárias do México (INIFAP)

Pesquisador INIFAP

H. C. Gonçalvez, Universidade Estadual Paulista "Julio de Mesquita Filho" , campus de Botucatu-SP

Docente da FMVZ-UNESP, atuando com Caprinocultura e Modelos matemáticos

P. R. L. Meirelles, Universidade Estadual Paulista "Julio de Mesquita Filho", campus de Botucatu-SP

Docente da FMVZ-UNESP, atuando com Melhoramento de forragem e alimentos

H. F. B. Gomes, Universidade Federal de Rondonópolis - MT, campus de Rondonópolis-MT

Docente do ICAT-UFR, atuando com Produção e Nutrição de caprinos e ovinos

M. F. Martins, Universidade de São Paulo, campus de Pirassununga-SP

Estudante de pós graduação da FZEA-USP, área de zootecnia

R. O. Marques, Universidade Estadual Paulista "Julio de Mesquita Filho", Campus de Botucatu-SP

Estudante de Pós doutorado da FMVZ-UNESP, área de Zootecnia

R. V. Lourençon, Universidade de Langston, Oklahoma - EUA

Estudante de pós doutorado da Universidade de Langston, área de Produção Animal

E. P. Brito, Universidade Estadual Paulista "Julio de Mesquita Filho", campus de Botucatu-SP

Estudante de pós graduação da FMVZ-UNESP, área de Zootecnia


Abdalla, A. L.; Silva Filho, J. C.; Godoi, A. R.; Carmo, C. de A. and Eduardo, J. L. de P. 2008. Biodiesel industry by-products used for ruminant feed. Revista Brasileira de Zootecnia 37, 260–268.

Almeida, O. C.; Pires, A. V.; Susin, I.; Gentil, R. S;, Mendes, C. Q.; Queiroz, M. A. A.; Ferreira, E. M. and Eastridge, M. L. 2013. Milk fatty acids profile and arterial blood milk fat precursors concentration of dairy goats fed increasing doses of soybean oil. Small Ruminant Research 114, 152–160.

AOAC., 2000. ASSOCIATION OF OFFICIAL ANALYTICAL CHEMISTS. Official methods of analysis., 17th ed. Gaithersburg, MD, USA, Association of Analytical Communities.

Bauman, D. E. and Griinari, J. M. 2003. Nutritional regulation of milk fat synthesis. Annual Review of Nutrition 23, 203–27.

Bauman, D. E.; Mather, I. H.; Wall, R. J. and Lock, A. L. 2006. Major Advances Associated with the Biosynthesis of Milk. Journal Dairy Science 89, 1235–1243.

Bernard, L.; Rouel, J.; Leroux, C.; Ferlay, A.; Faulconnier, Y.; Legrand, P. and Chilliard, Y. 2005. Mammary Lipid Metabolism and Milk Fatty Acid Secretion in Alpine Goats Fed Vegetable Lipids. Journal Dairy Science 88, 1478–1489.

Bernard, L.; Mouriot, J.; Rouel, J.; Glasser, F.; Capitan, P.; Pujos-Guillot, E.; Chardigny, J. M. and Chilliard, Y. 2010. Effects of fish oil and starch added to a diet containing sunflower-seed oil on dairy goat performance, milk fatty acid composition and in vivo D9-desaturation of [ 13 C]vaccenic acid. Brasilian Journal Nutrition. 104, 346–354.

Bomfim, M. A. D.; Queiroga, R. C. E.; Aguila, M. B.; Medeiros, M. C.; Fisberg, M.; Rodrigues, M. T.; Santos, K. M. O. and Lanna, D. P. D. 2011. Multidisciplinary approach to R, D & I for the development of dairy goat products with high content of CLA and functional property claim. Revista Brasileira de Zootecnia 40, especial supplement, 98–106.

Bouattour, M. A.; Casals, R.; Albanell, E.; Such, X. and Caja, G. 2008. Feeding Soybean Oil to Dairy Goats Increases Conjugated Linoleic Acid in Milk. Journal Dairy Science 91, 2399–2407.

Chacón, A.V. 2005. Aspectos nutricionales de la leche de cabra (capra hircus) y sus variaciones en el proceso agroindustrial. Agronomia Mesoamericana 16, 239–252.

Chilliard, Y.; Ferlay, A.; Rouel, J. and Lamberet, G. 2003. A Review of Nutritional and Physiological Factors Affecting Goat Milk Lipid Synthesis and Lipolysis. Journal Dairy Science 86, 1751–1770.

Chilliard, Y.; Glasser, F.; Ferlay, A.; Bernard, L.; Rouel, J. and Doreau, M. 2007. Diet, rumen biohydrogenation and nutritional quality of cow and goat milk fat. Eur. J. Lipid Science Technology 109, 828–855.

Christie, W.W. 1982. A simple procedure for rapid transmethilation of glycerolipids and cholesterol esters. Journal Lipid Research 23, 1072–1075.

FEDERAL UNIVERSITY OF VIÇOSA - UFV. SAEG – System of Estatistical and Gentics Analysis, 2000.

Fernandes, M. F.; Queiroga, R. C. R. E.; Medeiros, A. N.; Costa, R. G.; Bomfim, M. A. D. and Braga, A. A. 2008. Physico-chemical characteristics and fatty acid profile of milk of crossbred Moxotó goats supplemented with cottonseed or sunflower oil. Revista Brasileira de Zootecnia 37, 703–710.

Fisberg, M.; Nogeuira, M.; Ferreira, A. M. do A. and Fisberg, R. M., 1999. Aceitação e tolerância de leite de cabra em pré-escolares. Pediatria Moderna 35, 526–537.

Gómez-Cortés, P.; Fuente, M. A.; Toral, P. G.; Frutos, P., Juárez, M. and Hervás, G. 2011. Effects of different forage:concentrate ratios in dairy ewe diets supplemented with sunflower oil on animal performance and milk fatty acid profile. Journal Dairy Science 94, 4578–4588.

Gulati, S.; Ashes, J. and Scott, T. 1999. Hydrogenation of eicosapentaenoic and docosahexaenoic acids and their incorporation into milk fat. Animal Feed Science Technolology 79, 57–64.

Hara, A. and Radin, N. S. 1978. Lipid extraction of tissues with a low-toxicity solvent. Analitical Biochemistry 90, 420–426.

Kalscheur, K. F.; Teter, B. B.; Piperova, L. S. and Erdman, R. A. 1997. Effect of fat source on duodenal flow of Trans-C18:1 fatty acids and milk fat production in dairy cows. Journal Dairy Science 80, 2115–2126.

Kearl, L. 1982. Nutrient Requirements of Ruminants in Developing Countries. All Graduate Theses and Dissertations. 4183.

KÖPPEN, W. 1948. Climatología: con un estudio de los climas de la tierra. Mexico: Fondo de Cultura Económica.

Lana, R. P.; Camardelli, M. M. L.; Queiroz, A. C.; Rodrigues, M.; Teixeir, Eifert, E. C.; Miranda, E. N. and Almeida, I. C. C. 2005. Soybean Oil and Propolis in the Diets of Dairy Goats. Revista Brasileira de Zootecnia 34, 650–658.

Maia, F. J.; Branco, A. F.; Mouro, G. F.; Coneglian, S. M.; Santos, G. T.; Minella, T. F. and Guimarães, K. C. 2006. Feeding vegetable oil to lactating goats: milk production and composition and milk fatty acids profile. Revista Brasileira Zootecnia 35, 1504–1513.

Maia, F. J.; Branco, A. F.; Mouro, G. F.; Coneglian, S. M.; Santos, G. T. dos; Minella, T. F. and Macedo, de A. F. 2006. Feeding vegetable oil to lactating goats: nutrient digestibility and ruminal and blood metabolism. Revista Brasileira de Zootecnia 35, 1496–1503.

Maia, M. O.; Queiroga, R. C. R. E.; Medeiros, A. N.; Costa, R. G.; Bomfim, M. A. D. and Fernandes, M. F. F. 2010. Intake, digestibility of nutrients and blood parameters of crossbred moxotó goats suplemented with licuri or castor oils. Ciência Rural 40, 149–155.

Martínez, G. M, 2013. Ensayo exploratorio: obtención de leche caprina funcional a partir de la suplementación con Salvia hispanica (Chía). Revista Investigação Agropecuária 39, 305–311.

Martínez Marín, A. L.; Gómez-Cortés, P.; Gómez Castro, G.; Juárez, M.; Pérez Alba, L.; Pérez Hernández, M. and Fuente, M. A. 2012. Effects of feeding increasing dietary levels of high oleic or regular sunflower or linseed oil on fatty acid profile of goat milk. Journal Dairy Science 95, 1942–1955.

Masiha, A.; Mahboobi Soofiani, N.; Ebrahimi, E.; Kadivar, M. and Karimi, M. R. 2013. Effect of dietary flaxseed oil level on the growth performance and fatty acid composition of fingerlings of rainbow trout, Oncorhynchus mykiss. Springerplus 2, 1.

Mott, G. O. and Lucas, H. L. 1952. The design, conduct, and interpretation of grazing trials on cultivated and improved pastures, in: International Grassland Congress, 6. Proceedings International Grassland Congress, 6, Pennsylvania, pp. 1380–1385.

Nagaraja, T. G.; Newbold, C. J.; Van Nevel, C. J. and Demeyer, D. 1997. Manipulation of ruminal fermentation, in: Robson, P. N., Stewart, C.. (Eds.), The Rumen Microbial Ecosystem. London: Blackie Academic & Professional, pp. 523–632.

National Research Council - NRC, 2007. Nutrient Requirements of Small Ruminants: Sheep, Goats, Cervids, and New World Camelids. Washintgton, D.C.: National Academy Press.

National Research Council - NRC, 2001. Nutrient requirements of dairy cattle., 7th ed. National Academies Press, Washington.

Queiroga, R. C. R. E.; Maia, M. O.; Medeiros, A. N.; Costa, R. G.; Pereira, R. Â. G. and Bomfim, M. A. D. 2010. Production and chemical composition of the milk from crossbred Moxotó goats supplemented with licuri or castor oil. Revista Brasileira de Zootecmia 39, 204–209.

Razzaghi, A.; Valizadeh, R.; Naserian, A. A.; Danesh Mesgaran, M. and Rashidi, L. 2015. Effects of sucrose and sunflower oil addition to diet of Saanen dairy goats on performance and milk fatty acid profile. Livestook Science 173, 14–23.

Ribeiro, E. L. de A. and Ribeiro, H. J. S. de S., 2001. Nutritional and therapeutic use of goat milk. Ciências Agrárias 22, 229–235.

Ribeiro, C. V. D. M.; Oliveira, D. E.; Juchem, S. O.; Silva, T. M. and Nalério, E. S. 2011. Fatty acid profile of meat and Milk from small ruminants: a review. Revista Brasileira de Zootecnia 40, 121–137.

Santos-Silva, J.; Bessa, R. J. B. and Santos-Silva, F. 2002. Effect of genotype, feeding system and slaughter weight on the quality of light lambs. Livestook Production Science 77, 187–194.

Santos-Zago, L. F.; Botelho, A. P. and Oliveira, A. C. de, 2008. Effects of conjugated linoleic acid on animal metabolism: advances in research and perspectives for the future. Revista Nutrição 21, 195–221.

Santos, S. F.; Bomfim, M. A. D.; Cândido, M. J. D.; Silva, M. M. C.; Pereira, L. P. S.; Souza Neto, M. A.; Garruti, D. S. and Severino, L. 2011. Effect of the castor bean hulls in the dairy goat diet on production, content and fat acid profile of milk. Archivos de Zootecnia 60, 113–122.

Schmidely, P. and Andrade, P. V. D. 2011. Dairy performance and milk fatty acid composition of dairy goats fed high or low concentrate diet in combination with soybeans or canola seed supplementation. Small Ruminant Reserch 99, 135–142.

Sieber, R.; Collomb, M.; Aeschlimann, A.; Jelen, P. and Eyer, H. 2004. Impact of microbial cultures on conjugated linoleic acid in dairy products—a review. Int. Dairy Journal 14, 1–15.

Simon, J. W. and Vieittes, R. 2010. Microbiological And Sensory Evaluation Of Guacamole Retained By Cold. Energia na Agricultura 25, 88–104.

Sniffen, C. J.; O’Connor, J. D.; Van Soest, P. J.; Fox, D. G. and Russell, J. B. 1992. A net carbohydrate and protein system for evaluating cattle diets: II. Carbohydrate and protein availability. Journal Animal Science 70, 3562–77.

Teh, T. H.; Trung, L. T.; Jia, Z. H.; Gipson, T. A.; Ogden, K. B. and Sweeney, T. F. 1994. Varying amounts of rumen-inert fat for high producing goats in early lactation. Journal Dairy Science 77, 253–258.

Tyrrell, H. F. and Reid, J. T. 1965. Prediction of the energy value of cow’s milk. J. Dairy Sci. 48, 1215–1223.

Ulbricht, T. L. V. and Southgate, D. A. T. 1991. Coronary heart disease: seven dietary factors. Lancet 338, 985–992.

Van Soest, P. J. 1994. Nutritional ecology of the ruminant., 2nd ed. Cornell University Press, New York.




Como Citar

López, F. X. P., Gonçalvez, H. C., Meirelles, P. R. L., Gomes, H. F. B., Martins, M. F., Marques, R. O., Lourençon, R. V., & Brito, E. P. (2020). Production, composition, and fatty acid profile of milk from anglo-nubian goats fed avocado (Persea americana Mill.) pulp and oil. Scientific Electronic Archives, 13(10), 39–49.



Agricultural Science

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