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Ítavo LCV, Gurgel ALC, Ferreira Ítavo CCB, Cunha CS, Longhini VZ, Difante GDS, Dias AM, Santana JCS, Arcanjo AHM, Niwa MVG, Nonato LM, Tadeu dos Santos G, Chay-Canul AJ. In Vitro Digestibility and Models of Cumulative Gas Production of Forage-Free Diet. Animals (Basel) 2023; 13:3515. [PMID: 38003133 PMCID: PMC10668660 DOI: 10.3390/ani13223515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/02/2023] [Accepted: 08/21/2023] [Indexed: 11/26/2023] Open
Abstract
Our objectives were to evaluate the use of cottonseed cake in replacing corn silage in a diet without forage and to identify the model with higher precision and accuracy of adjustment of parameters of ruminal degradation kinetics. A diet containing corn silage and another with cottonseed cake as a fiber source were formulated. Gompertz, Dual-pool Logistic, Brody, and Ørskov models were evaluated for goodness of fit to gas production. There were significant differences in dry matter (DM), organic matter (OM), and neutral detergent fiber (NDF) in the in vitro digestibility for diets and fiber sources. The estimated values of the Gompertz (6.77), Brody (6.72), and Ørskov (6.73) models were similar to the observed mean of gas production in the corn silage diet (6.73 mL/100 mg DM). Similarly, the estimated values of the Brody (5.87) and Ørskov (5.89) models were similar to the observed mean of gas production in the cottonseed cake diet (5.87 mL/100 mg DM). The roughage-free diet containing cottonseed cake as a fiber source stimulated higher gas production. Brody and Ørskov models presented higher precision and accuracy in the fitting of kinetics of degradation independent of the fiber source in the diet.
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Affiliation(s)
- Luís Carlos Vinhas Ítavo
- College of Veterinary Medicine and Animal Science, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (A.L.C.G.); (C.C.B.F.Í.); (C.S.C.); (V.Z.L.); (G.d.S.D.); (A.M.D.); (J.C.S.S.); (A.H.M.A.); (M.V.G.N.); (L.M.N.); (G.T.d.S.)
| | - Antonio Leandro Chaves Gurgel
- College of Veterinary Medicine and Animal Science, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (A.L.C.G.); (C.C.B.F.Í.); (C.S.C.); (V.Z.L.); (G.d.S.D.); (A.M.D.); (J.C.S.S.); (A.H.M.A.); (M.V.G.N.); (L.M.N.); (G.T.d.S.)
| | - Camila Celeste Brandão Ferreira Ítavo
- College of Veterinary Medicine and Animal Science, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (A.L.C.G.); (C.C.B.F.Í.); (C.S.C.); (V.Z.L.); (G.d.S.D.); (A.M.D.); (J.C.S.S.); (A.H.M.A.); (M.V.G.N.); (L.M.N.); (G.T.d.S.)
| | - Camila Soares Cunha
- College of Veterinary Medicine and Animal Science, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (A.L.C.G.); (C.C.B.F.Í.); (C.S.C.); (V.Z.L.); (G.d.S.D.); (A.M.D.); (J.C.S.S.); (A.H.M.A.); (M.V.G.N.); (L.M.N.); (G.T.d.S.)
| | - Vanessa Zirondi Longhini
- College of Veterinary Medicine and Animal Science, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (A.L.C.G.); (C.C.B.F.Í.); (C.S.C.); (V.Z.L.); (G.d.S.D.); (A.M.D.); (J.C.S.S.); (A.H.M.A.); (M.V.G.N.); (L.M.N.); (G.T.d.S.)
| | - Gelson dos Santos Difante
- College of Veterinary Medicine and Animal Science, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (A.L.C.G.); (C.C.B.F.Í.); (C.S.C.); (V.Z.L.); (G.d.S.D.); (A.M.D.); (J.C.S.S.); (A.H.M.A.); (M.V.G.N.); (L.M.N.); (G.T.d.S.)
| | - Alexandre Menezes Dias
- College of Veterinary Medicine and Animal Science, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (A.L.C.G.); (C.C.B.F.Í.); (C.S.C.); (V.Z.L.); (G.d.S.D.); (A.M.D.); (J.C.S.S.); (A.H.M.A.); (M.V.G.N.); (L.M.N.); (G.T.d.S.)
| | - Juliana Caroline Santos Santana
- College of Veterinary Medicine and Animal Science, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (A.L.C.G.); (C.C.B.F.Í.); (C.S.C.); (V.Z.L.); (G.d.S.D.); (A.M.D.); (J.C.S.S.); (A.H.M.A.); (M.V.G.N.); (L.M.N.); (G.T.d.S.)
| | - Angelo Herbet Moreira Arcanjo
- College of Veterinary Medicine and Animal Science, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (A.L.C.G.); (C.C.B.F.Í.); (C.S.C.); (V.Z.L.); (G.d.S.D.); (A.M.D.); (J.C.S.S.); (A.H.M.A.); (M.V.G.N.); (L.M.N.); (G.T.d.S.)
| | - Marcus Vinicius Garcia Niwa
- College of Veterinary Medicine and Animal Science, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (A.L.C.G.); (C.C.B.F.Í.); (C.S.C.); (V.Z.L.); (G.d.S.D.); (A.M.D.); (J.C.S.S.); (A.H.M.A.); (M.V.G.N.); (L.M.N.); (G.T.d.S.)
| | - Lucimara Modesto Nonato
- College of Veterinary Medicine and Animal Science, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (A.L.C.G.); (C.C.B.F.Í.); (C.S.C.); (V.Z.L.); (G.d.S.D.); (A.M.D.); (J.C.S.S.); (A.H.M.A.); (M.V.G.N.); (L.M.N.); (G.T.d.S.)
| | - Geraldo Tadeu dos Santos
- College of Veterinary Medicine and Animal Science, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil; (A.L.C.G.); (C.C.B.F.Í.); (C.S.C.); (V.Z.L.); (G.d.S.D.); (A.M.D.); (J.C.S.S.); (A.H.M.A.); (M.V.G.N.); (L.M.N.); (G.T.d.S.)
| | - Alfonso Juventino Chay-Canul
- División Académica de Ciencias Agropecuarias, Universidad Juárez Autónoma de Tabasco, Villahermosa 86025, Mexico;
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Rufino MDOA, Vieira Salles MS, Negrão JA, Chaves Gurgel AL, Daniel JLP, Soares de Lima L, de Marchi FE, Roma Júnior LC, Santos GTD. Oxidative stability of milk and expression of oxidative stress response, lipogenic-related, and IGF-1 genes in early-lactation cows supplemented with peanut and sunflower oils. Anim Prod Sci 2023. [DOI: 10.1071/an22273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Soares ÉSDM, Ferreira Ítavo CCB, Ítavo LCV, dos Santos GT, Nazário CED, Soares ISS, Cavalheiro LF. Comparison of analytical methods for the fatty acid profile in ewes’ milk. PLoS One 2022; 17:e0263071. [PMID: 35171914 PMCID: PMC8849528 DOI: 10.1371/journal.pone.0263071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 12/21/2021] [Indexed: 11/18/2022] Open
Abstract
Studies comparing methodologies for fatty acids are very important, since they can influence the quality and final quantification of the lipid fraction. Objective—to compare different extraction methods for total lipids and to evaluate the effect of these methodologies on the quantitative composition of fatty acids in milk of lactating ewes raised in tropical pastures. The methodologies used were simple direct transesterification, using the HPLC grade organic solvent n-hexane, Bligh; Dyer (cold extraction, extracting mixture proportions 5, 10, and 15 mL in a ratio of 2:1:1 (v/v/v) of chloroform-methanol-water). The fatty acid methyl esters were separated by gas chromatography coupled with a flame ionization detector (GC-FID). The results show that there was no significant difference (p <0.05) in the total lipid content between the extraction methods. However, the Bligh’s method; Dyer obtained the best yield of lipids to be extracted from ewe’s milk, since the volume with 15 mL of the extraction solution was able to identify 87% of the chromatographic peaks. It was also observed that ewe’s milk has a higher percentage of palmitic, stearic and oleic fatty acids, with percentages of 20.1%, 15.5% and 33.1%, respectively. Therefore, an extraction mixture with a volume of 15 mL used in this study may be an alternative to perform the extraction of milk fat from high lactating ewes in tropical pastures as a routine method, as it expresses the best lipid content of this food.
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Affiliation(s)
- Évelyn Silva de Melo Soares
- Animal Science Post-Graduation Program, Faculty of Veterinary Medicine and Animal Science, Campo Grande, Mato Grosso do Sul, Brazil
| | | | - Luís Carlos Vinhas Ítavo
- Animal Science Post-Graduation Program, Faculty of Veterinary Medicine and Animal Science, Campo Grande, Mato Grosso do Sul, Brazil
- * E-mail:
| | - Geraldo Tadeu dos Santos
- Animal Science Post-Graduation Program, Faculty of Veterinary Medicine and Animal Science, Campo Grande, Mato Grosso do Sul, Brazil
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Lourenço JCS, Ossani PC, Salles MSV, Bánkuti FI, Almeida RD, Rossoni DF, Osorio JACD, Santos GTD. Characterization of dystocia in a herd of Holstein dairy cows in Brazil. Ciênc anim bras 2022. [DOI: 10.1590/1809-6891v23e-72508e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Abstract The objective of this study was to characterize calvings with low and high difficulty based on the productive and reproductive performance of dairy cows. Calvings were grouped in no calving assistance, calving with low assistance, and calving with high assistance. The original data set comprised 1,902 calving records obtained from a large dairy farm in Southeast Brazil. Factor analysis was applied using the SAS® Studio 3.8 statistical program through the factor procedure, considering the Multivariate Analysis category. Milk fat (0.92–0.79) and total solids (0.91–0.80) were strongly correlated with Factor 1. Calving interval (0.87– 0.68) and the number of AI (artificial inseminations) per conception (0.87–0.71) showed high correlations with Factor 2. Milk yield (0.84–0.76) and accumulated milk yield (0.84–0.77) were strongly correlated with Factor 3. Based on the results, we conclude that the three calving scenarios were characterized by well-defined and independent factors. Cows which required a high assistance at calving showed a lower variance explained by the model for milk fat and total solids contents, calving interval, and the number of AIs per conception.
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Lourenço JCS, Ossani PC, Salles MSV, Bánkuti FI, Almeida RD, Rossoni DF, Osorio JACD, Santos GTD. Caracterização da distocia em um rebanho de vacas da raça Holandesa no Brasil. Ciênc anim bras 2022. [DOI: 10.1590/1809-6891v23e-72508p] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Resumo O objetivo deste estudo foi caracterizar os partos com leve ou severa dificuldade e diferenciá-los com base no desempenho produtivo e reprodutivo de vacas leiteiras. Os partos foram agrupados em partos sem assistência, partos com baixa assistência e partos com elevada assistência. O banco de dados original continha 1902 registro de partos que foram obtidos de uma grande fazenda comercial localizada no Sudeste do Brasil. A análise fatorial foi aplicada através do programa estatístico SAS® Studio 3.8 por meio de procedimento fatorial, considerando a categoria de análise multivariada. Os teores de gordura do leite (0,92– 0,79) e de sólidos totais (0,91–0,80) foram altamente correlacionados com o fator 1. Intervalo entre partos (0,87–0,68) e número de IA (inseminações artificiais) por concepção (0,87–0,71) apresentaram alta correlação com o fator 2. Produção de leite (0,84–0,76) e produção acumulada de leite (0,84–0,77) foram altamente correlacionados com o fator 3. Baseados nos resultados, é possível concluir que as três situações de parto foram caracterizadas por fatores independentes e bem definidos. Vacas que necessitaram de alta assistência ao parto apresentaram menor variância explicada pelo modelo para teores de gordura e sólidos totais do leite, intervalo entre partos e número de IA por concepção.
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Kozerski ND, Ítavo LCV, dos Santos GT, Ítavo CCBF, Benchaar C, Dias AM, dos Santos Difante G, Leal ES. Extruded urea-corn product can partially replace true protein sources in the diet for lactating Jersey cows. Anim Feed Sci Technol 2021. [DOI: 10.1016/j.anifeedsci.2021.115129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Faccenda A, Zambom MA, de Avila AS, Schneider CR, Werle CH, Anschau FA, Almeida ARE, Lange MJ, dos Santos GT. Performance and milk composition of Holstein cows fed with dried malt bagasse and selenium-enriched Saccharomyces cerevisiae. Livest Sci 2020. [DOI: 10.1016/j.livsci.2020.104081] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Novais-Eiras D, de Carvalho GGP, Leite LC, Eiras CE, Freitas JED, Pina DDS, Ferreira FG, Santos GTD, Grande PA. Crude glycerin in the feed supplementation of lactating goats on pasture. Small Rumin Res 2018. [DOI: 10.1016/j.smallrumres.2018.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Romero JV, De Marchi FE, Alcalde CR, Cecato U, C Grande PA, Valloto AA, SilvaKazama DC, dos Santos GT. Pelleting and sodium monensin increase milk CLA concentration from dairy cows fed flaxseed. REV COLOMB CIENC PEC 2018. [DOI: 10.17533/udea.rccp.v31n2a04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Olivo PM, Santos GTD, Ítavo LCV, Silva Junior RCD, Leal ES, Prado RMD. Assessing the nutritional value of agroindustrial co-products and feed through chemical composition, in vitro digestibility, and gas production technique. ACTA ACUST UNITED AC 2017. [DOI: 10.4025/actascianimsci.v39i3.34024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Agroindustrial co-products are a viable alternative for use in animal nutrition. Tests were conducted using eight different types of co-products and feed to evaluate the chemical composition, in vitro digestibility of dry matter, crude protein and neutral detergent fiber, and gas production by them. The co-products tested were: coffee hulls; pelleted citrus pulp; grape residue; soybean hulls; cottonseed; cassava foliage; and foods usually supplied to ruminants: corn silage and ground corn concentrate. Data of in vitro digestibility of dry matter, crude protein and neutral detergent fiber were tested by analysis of variance using the least square method; the results of gas production were interpreted by a non-linear regression by the Gauss-Newton method; and the effects of treatments were evaluated by the Tukey’s test. The coefficients of in vitro digestibility of dry matter, crude protein and neutral detergent fiber of co-products were different. Gas production was also different between co-products and feeds evaluated for the volume of gas produced from the fast and slow degradation fractions, degradation rate, bacterial colonization time, and the total volume of gas produced. The evaluated co-products exhibited greater in vitro dry matter digestibility compared to corn silage, except for cottonseed, grape residue, and cassava foliage. Co-products showed higher values of in vitro crude protein digestibility compared to corn silage, and a reduced in vitro digestibility of neutral detergent fiber, except for pelleted citrus pulp and soybean hulls. Corn silage produced larger volume of gas from the fast degradation fraction compared to the co-products and corn concentrate. Co-products analyzed had appropriate nutritional characteristics according to the techniques applied and can be included in ruminant diets.
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Hygino B, Alcalde CR, Diaz TG, Olivo PM, Santos GTD, Silva CID. <b>Nutritional value of feed used in diets for Saanen goats. Acta Sci Anim Sci 2015. [DOI: 10.4025/actascianimsci.v37i4.28705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Santos VLFD, Ferreira MDA, Santos GTD, Damasceno JC, Oliveira KD, Agostino BC, Olivo PM, Soares LFP, Silva JDL. Cassava peel as a replacement for corn in the diet of lactating cows. Trop Anim Health Prod 2015; 47:779-81. [PMID: 25686553 DOI: 10.1007/s11250-015-0776-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 02/06/2015] [Indexed: 11/28/2022]
Abstract
The aim of this study was to evaluate the effect of the replacement of corn with cassava peel in the diets of dairy cows. Eight Holstein cows were used. The experimental treatments consisted of four replacement levels of corn with cassava peel (0, 33, 66, and 100 %). The replacement of corn with cassava peel linearly decreased the intake and digestibility of dry matter and organic matter, but did not alter the intake of neutral detergent fiber and crude protein. In addition, there was a linear decrease in milk production. The milk components (g/kg) of fat, protein, lactose, and total solids were not altered. Although cassava peel decreased intake, digestibility, and milk production, the replacement of corn with cassava peel may be advantageous in locations close to the starch industry.
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Simionato JI, Garcia JC, Santos GTD, Oliveira CC, Visentainer JV, Souza NED. Additions and Corrections - Validation of the Determination of Fatty Acids in Milk by Gas Chromatography. J BRAZIL CHEM SOC 2015. [DOI: 10.5935/0103-5053.20150063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Coutinho DA, Branco AF, Santos GTD, Osmari MP, Teodoro AL, Diaz TG. Intake, digestibility of nutrients, milk production and composition in dairy cows fed on diets containing cashew nut shell liquid. ACTA ACUST UNITED AC 2014. [DOI: 10.4025/actascianimsci.v36i3.23512] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Ribeiro OL, Cecato U, Rodrigues AM, Faveri JC, Santos GTD, Lugão SMB, Beloni T. Composição botânica e química da Coastcross consorciada ou não com Arachis pintoi, com e sem nitrogênio. Rev bras saúde prod anim 2012. [DOI: 10.1590/s1519-99402012000100005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
O objetivo com este trabalho foi avaliar a composição botânica e química do pasto de Coastcross + Arachis pintoi; Coastcross + Arachis pintoi com 100kg/ha de nitrogênio (N); Coastcross + Arachis pintoi com 200 kg/ha de N; e Coastcross com 200kg/ha de N, nos períodos de inverno, primavera, verão e outono. Utilizouse delineamento experimental em blocos ao acaso com os tratamentos em esquema de parcelas subdivididas, com duas repetições (blocos). Avaliouse as percentagens de lâmina foliar verde, colmo+bainha verde, material morto e Arachis pintoi, bem como a razão folha/colmo (RF:C), além dos teores de proteína bruta, fibra em detergente neutro e digestibilidade in vitro da matéria seca. A utilização de 200kg/ha de N proporcionou a maior percentagem de lâmina foliar verde (32%) e de colmo+bainha verde (58%), porém com redução nas percentagens de material morto (10%). No outono e no verão houve maiores percentagens de lâmina foliar e redução do material morto. Na primavera houve maior percentagem da leguminosa na massa de forragem. A adubação nitrogenada exclusiva ou associada ao Arachis pintoi aumentou os teores de proteína bruta e digestibilidade in vitro da matéria seca e reduziu o teor de fibra em detergente neutro da Coastcross. A associação entre leguminosa, adubação nitrogenada e condições climáticas favoráveis, proporciona melhor composição botânica e valor nutritivo do pasto consorciado.
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Côrtes C, da Silva-Kazama DC, Kazama R, Gagnon N, Benchaar C, Santos GTD, Zeoula LM, Petit HV. Milk composition, milk fatty acid profile, digestion, and ruminal fermentation in dairy cows fed whole flaxseed and calcium salts of flaxseed oil. J Dairy Sci 2010; 93:3146-57. [PMID: 20630232 DOI: 10.3168/jds.2009-2905] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2009] [Accepted: 03/13/2010] [Indexed: 11/19/2022]
Abstract
Four ruminally lactating Holstein cows averaging 602+/-25 kg of body weight and 64+/-6 d in milk at the beginning of the experiment were randomly assigned to a 4 x 4 Latin square design to determine the effects of feeding whole flaxseed and calcium salts of flaxseed oil on dry matter intake, digestibility, ruminal fermentation, milk production and composition, and milk fatty acid profile. The treatments were a control with no flaxseed products (CON) or a diet (on a dry matter basis) of 4.2% whole flaxseed (FLA), 1.9% calcium salts of flaxseed oil (SAL), or 2.3% whole flaxseed and 0.8% calcium salts of flaxseed oil (MIX). The 4 isonitrogenous and isoenergetic diets were fed for ad libitum intake. Experimental periods consisted of 21 d of diet adaptation and 7 d of data collection and sampling. Dry matter intake, digestibility, milk production, and milk concentrations of protein, lactose, urea N, and total solids did not differ among treatments. Ruminal pH was reduced for cows fed the CON diet compared with those fed the SAL diet. Propionate proportion was higher in ruminal fluid of cows fed CON than in that of those fed SAL, and cows fed the SAL and CON diets had ruminal propionate concentrations similar to those of cows fed the FLA and MIX diets. Butyrate concentration was numerically higher for cows fed the SAL diet compared with those fed the FLA diet. Milk fat concentration was lower for cows fed SAL than for those fed CON, and there was no difference between cows fed CON and those fed FLA and MIX. Milk yields of protein, fat, lactose, and total solids were similar among treatments. Concentrations of cis-9 18:1 and of intermediates of ruminal biohydrogenation of fatty acids such as trans-9 18:1 were higher in milk fat of cows fed SAL and MIX than for those fed the CON diet. Concentration of rumenic acid (cis-9, trans-11 18:2) in milk fat was increased by 63% when feeding SAL compared with FLA. Concentration of alpha-linolenic acid was higher in milk fat of cows fed SAL and MIX than in milk of cows fed CON (75 and 61%, respectively), whereas there was no difference between FLA and CON. Flaxseed products (FLA, SAL, and MIX diets) decreased the n-6 to n-3 fatty acid ratio in milk fat. Results confirm that flax products supplying 0.7 to 1.4% supplemental fat in the diet can slightly improve the nutritive value of milk fat for better human health.
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Affiliation(s)
- C Côrtes
- Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, Stn. Lennoxville, Sherbrooke, QC J1M 1Z3, Canada
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Fagan EP, Jobim CC, Calixto Junior M, Silva MSD, Santos GTD. Fatores ambientais e de manejo sobre a composição química do leite em granjas leiteiras do Estado do Paraná, Brasil. ACTA ACUST UNITED AC 2010. [DOI: 10.4025/actascianimsci.v32i3.8570] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Simionato JI, Garcia JC, Santos GTD, Oliveira CC, Visentainer JV, Souza NED. Validation of the determination of fatty acids in milk by gas chromatography. J BRAZIL CHEM SOC 2010. [DOI: 10.1590/s0103-50532010000300018] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Paris W, Cecato U, Santos GTD, Barbeiro L, Avanzzo L, Limão V. Produção e qualidade de massa de forragem nos estratos da cultivar coastcross-1 consorciada com <em>Arachis pintoi</em> com e sem adubação nitrogenada. Acta Sci Anim Sci 2008. [DOI: 10.4025/actascianimsci.v30i2.4676] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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20
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Zambom MA, Santos GTD, Modesto EC, Alcalde CR, Gonçalves GD, Silva DCD, Silva KTD, Faustino JO. Valor nutricional da casca do grão de soja, farelo de soja, milho moído e farelo de trigo para bovinos. Acta Sci Anim Sci 2008. [DOI: 10.4025/actascianimsci.v23i0.2648] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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21
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Rêgo FCDA, Cecato U, Canto MWD, Santos GTD, Galbeiro S, Almeida Junior J. Densidade e qualidade dos estratos de forragem do capim Tanzânia (<em>Panicum maximum</em> Jacq. Cv. Tanzânia-1) manejado em diferentes alturas, sob pastejo. Acta Sci Anim Sci 2008. [DOI: 10.4025/actascianimsci.v23i0.2598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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22
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Cecato U, Santos GTD, Machado MDA, Gomes LH, Damaceno JC, Jobim CC, Ribas NP, Mira RT, Cano CCP. Avaliação de cultivares do gênero Cynodon com e sem nitrogênio. Acta Sci Anim Sci 2008. [DOI: 10.4025/actascianimsci.v23i0.2581] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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23
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Voltolini TV, Santos GTD, Zambom MA, Ribas NP, Müller EE, Mamasceno JC, Ítavo LCV, Veiga DRD. Influência dos estádios de lactação sobre a contagem de células somáticas do leite de vacas da raça holandesa e identificação de patógenos causadores de mastite no rebanho. Acta Sci Anim Sci 2008. [DOI: 10.4025/actascianimsci.v23i0.2652] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Jobim CC, Lombardi L, Gonçalves GD, Cecato U, Santos GTD, Canto MWD. Desidratação de cultivares de <em>Cynodon spp</em>. durante o processo de fenação. Acta Sci Anim Sci 2008. [DOI: 10.4025/actascianimsci.v23i0.2612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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25
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Alcalde CR, Machado RM, Santos GTD, Picolli R, Jobim CC. Digestibilidade <em>in vitro</em> de alimentos com inóculos de líquido de rúmen ou de fezes de bovinos. Acta Sci Anim Sci 2008. [DOI: 10.4025/actascianimsci.v23i0.2645] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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26
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Gonçalves GD, Santos GTD, Jobim CC, Cecato U, Damasceno JC, Branco AF, Silva KTD. Determinação das frações de proteína e de carboidratos de gramíneas do gênero <em>Cynodon</em> em idades ao corte. Acta Sci Anim Sci 2008. [DOI: 10.4025/actascianimsci.v23i0.2590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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27
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Ítavo LCV, Santos GTD, Toledo VDAAD, Ítavo CCBF, Ribas NP. Qualidade do leite e detecção de mastite subclínica através da contagem de células somáticas. Acta Sci Anim Sci 2008. [DOI: 10.4025/actascianimsci.v23i0.2668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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28
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Gonçalves GD, Santos GTD, Cecato U, Jobim CC, Damasceno JC, Branco AF, Faria KP. Produção e valor nutritivo de gramíneas do gênero <em>Cynodon</em> em diferentes idades ao corte durante o ano. Acta Sci Anim Sci 2008. [DOI: 10.4025/actascianimsci.v24i0.2582] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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29
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Jobim CC, Ferreira GA, Santos GTD, Cecato U, Damasceno JC. Produção e composição do leite de vacas da raça Holandesa alimentadas com fenos de alfafa e de tifton-85 e silagem de milho. ACTA ACUST UNITED AC 2008. [DOI: 10.4025/actascianimsci.v24i0.2622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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30
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Santos GTD, Modesto EC, Jobim CC, Damasceno JC, Cecato U, Silva DC. Substituição da silagem de milho pela silagem de rama de mandioca na alimentação de vacas leiteiras: consumo e digestibilidade dos nutrientes. Acta Sci Anim Sci 2008. [DOI: 10.4025/actascianimsci.v29i4.990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Cecato U, Oliveira AL, Damasceno JC, Santos GTD, Rodrigues AM, Barbosa MAADF. Caracterização agronômica e composição química de híbridos de milho. Acta Sci Anim Sci 2007. [DOI: 10.4025/actascianimsci.v29i2.206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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32
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Santos GTD, Modesto EC, Jobim CC, Cecato U, Silva DCD, Zambom MA. Inclusão de silagem de rama de mandioca na alimentação de vacas em lactação, mantidas em pasto de <em>Cynodon</em>: consumo e digestibilidade. Acta Sci Anim Sci 2006. [DOI: 10.4025/actascianimsci.v28i2.637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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33
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Jobim CC, Sarti LL, Santos GTD, Branco AF, Cecato U. Desempenho animal e viabilidade econômica do uso da silagem de capim-Elefante em substituição a silagem de milho para vacas em lactação. Acta Sci Anim Sci 2006. [DOI: 10.4025/actascianimsci.v28i2.849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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34
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Ferreira GDG, Santos GTD, Cecato U, Cardoso EDC. Composição química e cinética da degradação ruminal de gramíneas do gênero <em>Cynodon</em> em diferentes idades ao corte. Acta Sci Anim Sci 2005. [DOI: 10.4025/actascianimsci.v27i2.1221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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35
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Santos GTD, Modesto EC, Vilela D, Silva DCD, Faustino JO, Detmann E, Zambom MA, Marques JDA. Caracterização químico-bromatológica da silagem do terço superior da rama de mandioca. Acta Sci Anim Sci 2004. [DOI: 10.4025/actascianimsci.v26i1.636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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36
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Barbosa OR, Zeoula LM, Alcalde CR, Sakagushi ES, Santos GTD, Ribas NP, Alves AS, Dias FJDS. Efeito do balanço cátion-aniônico da dieta na produção de leite e nas respostas fisiológicas em vacas lactantes da raça Holandesa em ambiente quente. Acta Sci Anim Sci 2004. [DOI: 10.4025/actascianimsci.v26i1.1959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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37
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Cecato U, Pereira LAF, Galbeiro S, Santos GTD, Damasceno JC, Machado AO. Influência das adubações nitrogenada e fosfatada sobre a produção e características da rebrota do capim Marandu (Brachiaria brizantha (Hochst) Stapf cv. Marandu). Acta Sci Anim Sci 2004. [DOI: 10.4025/actascianimsci.v26i3.1836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Barbosa OR, Boza PR, Santos GTD, Sakagushi ES, Ribas NP. Efeitos da sombra e da aspersão de água na produção de leite de vacas da raça Holandesa durante o verão. Acta Sci Anim Sci 2004. [DOI: 10.4025/actascianimsci.v26i1.1961] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Santos GTD, Souza LGD, Sakaguti ES, Damasceno JC, Matsushita M, Horst JA, Villalba RG. Avaliação da composição do leite UHT proveniente de dois laticínios das regiões Norte e Noroeste do Estado do Paraná. Acta Sci Anim Sci 2004. [DOI: 10.4025/actascianimsci.v26i2.1875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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40
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Santos GTD, Silva DCD, Kazama R, Faustino JO, Zambom MA, Branco AF. Digestibilidade in vitro e degradabilidade in situ da casca do grão de soja, resíduo de soja e casca de algodão. Acta Sci Anim Sci 2004. [DOI: 10.4025/actascianimsci.v26i4.1733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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41
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Santos GTD, Damasceno JC, Jobim CC, Gonçalves GD, Chiquitelli Neto M, Porto PP, Ribeiro CR. Efeito dos tratamentos com autoclave e/ou ácido tânico na degradabilidade in situ e na digestibilidade in vitro de grãos de canola. Acta Sci Anim Sci 2004. [DOI: 10.4025/actascianimsci.v26i4.1735] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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42
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Barbosa OR, Zeoula LM, Alcalde CR, Sakagushi ES, Santos GTD, Ribas NP, Alves AS, Dias FJDS, Giacomelli LRB. Efeito do balanço cátion-aniônico da dieta no equilíbrio ácido-básico e metabolismo de minerais em vacas lactantes da raça Holandesa em ambiente quente. Acta Sci Anim Sci 2004. [DOI: 10.4025/actascianimsci.v26i1.1955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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43
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Santos GTD, Silva KTD, Silva DCD, Alcalde CR, Zambom MA, Modesto EC, Furtado CE. Utilização de fezes (eqüina ou bovina) em substituição ao líquido ruminal como fonte de inóculo para determinação da digestibilidade in vitro de alimentos para ruminantes. Acta Sci Anim Sci 2003. [DOI: 10.4025/actascianimsci.v25i2.2025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Santos GTD, Souza LGD, Damasceno JC, Matsushita M, Sakaguti ES, Ribas NP, Villalba RG. Avaliação da composição e do perfil de ácidos graxos do leite de vaca cru e pasteurizado em minilaticínios. Acta Sci Anim Sci 2003. [DOI: 10.4025/actascianimsci.v25i2.2019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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45
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Santos GTD, Faustino JO, Modesto EC, Silva DCD, Jobim CC, Sakaguti ES, Damasceno JC, Marques JDA, Zambom MA. Efeito da ensilagem do terço superior da rama de mandioca triturada ou inteira e dos tempos de armazenamento. Acta Sci Anim Sci 2003. [DOI: 10.4025/actascianimsci.v25i2.2083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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46
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Cecato U, Rego FCDA, Damasceno JC, Ribas NP, Santos GTD, Moreira FB, Rodrigues AM. Valor nutritivo do capim-Tanzânia (Panicum maximum Jacq cv. Tanzânia-1) manejado em alturas de pastejo. Acta Sci Anim Sci 2003. [DOI: 10.4025/actascianimsci.v25i2.205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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