Detoxified castor in the diets of dairy goats: II. Lactation curves, composition, and fatty acid profile of milk.
2020
ARAÚJO, R. A. de | POMPEU, R. C. F. F. | CÂNDIDO, M. J. D. | ROGERIO, M. C. P. | LUCAS, R. C. | MARANHÃO, S. R. | SANTOS NETO, C. F. dos | NEIVA, J. N. M. | RICARDO ALVES DE ARAÚJO, Universidade Estadual do Maranhão (UEMA) - Itapecuru-Mirim, MA, Brasil / Orcid: http://orcid.org/0000-0001-9696-5680; ROBERTO CLAUDIO FERNANDES F POMPEU, CNPC - Orcid: http://orcid.org/0000-0002-4099-3575; MAGNO JOSÉ DUARTE CÂNDIDO, Universidade Federal do Ceará (UFC) - Fortaleza, CE, Brasil / Orcid: http://orcid.org/0000-0003-3573-6053; MARCOS CLAUDIO PINHEIRO ROGERIO, CNPC; RONALDO CARLOS LUCAS, Universidade Federal do Ceará (UFC) - Fortaleza, CE, Brasil / Orcid: http://orcid.org/0000-0003-3418-0874; SAMUEL ROCHA MARANHÃO, Universidade Federal do Ceará (UFC) - Fortaleza, CE, Brasil / Orcid: http://orcid.org/0000-0002-9945-9529; CLEMENTE FERNANDES DOS SANTOS NETO, Universidade Federal do Ceará (UFC) - Fortaleza, CE, Brasil / Orcid: http://orcid.org/0000-0001-6655-3239; JOSÉ NEUMAN MIRANDA NEIVA, Universidade Federal do Tocantins (UFT) - Araguaína, TO, Brasil / Orcid: http://orcid.org/0000-0001-7817-8210.
Abstract: We aimed to evaluate the lactation curves, composition, and fatty acid profile of milk of lactating goats fed diets containing detoxified castor cake (DCC) by alkaline solutions during 150 days of lactation. Twenty-four Saanen and Anglo Nubian goats, approximately 17 months old (first lactation) and 43±2.97 kg body weight, were distributed in a completely randomized block design with eight replicates. Treatments consisted of three diets, one containing soybean meal (SM) and two others containing DCC, with calcium hydroxide [Ca(OH)2] and sodium hydroxide (NaOH). The lactation curves showed greater persistence of lactation in Saanen goats. There were significant effects of diets on the profile of some fatty acids present in the milk. We observed that the NaOH DCC diet led to an increase in desirable fatty acid content. Both Ca(OH)2 and NaOH DCC diets led to decreased milk production during the lactation period; however, the NaOH DCC diet led to high productive efficiency. Furthermore, NaOH DCC did not negatively affect the desirable fatty acid content, unlike Ca(OH)2 DCC. Diets formulated with detoxified castor decrease the production of milk from goats during lactation phase. It should be emphasized that milk produced by goats fed DCC diets does not contain unwanted waste.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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