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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
06/03/2023 |
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Data da última atualização: |
22/08/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SILVA, A. S.; CORTINHAS, C. S.; ACEDO, A. C.; LOPES, F. C. F.; ARRIGONI, M. B.; TOMICH, T. R.; PEREIRA, L. G. R.; FERREIRA, M. H.; JAGUARIBE, T. L.; WEBER, C. T.; MORENZ, M. J. F. |
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Afiliação: |
A.S. SILVA, Universidade Estadual Paulista "Júlio de Mesquita Filho"; DSM Produtos Nutricionais; DSM Produtos Nutricionais; FERNANDO CESAR FERRAZ LOPES, CNPGL; ARRIGONI, Universidade Estadual Paulista "Júlio de Mesquita Filho"; THIERRY RIBEIRO TOMICH, CNPGL; LUIZ GUSTAVO RIBEIRO PEREIRA, CNPGL; Univerisdade Federal de Juiz de Fora; Universidade Federal de Juiz de Fora; Universidade Federal de Santa Maria; MIRTON JOSE FROTA MORENZ, CNPGL. |
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Título: |
Effects of essential oils supplementation, associated or not with amylase, on dry matter intake, productive performance, and nitrogen metabolism of dairy cows. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Animal Feed Science and Technology, v. 297, 115575, 2023. |
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DOI: |
https://doi.org/10.1016/j.anifeedsci.2023.115575 |
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Idioma: |
Inglês |
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Conteúdo: |
The aim was to evaluate the effects of essential oils supplementation, associated or not with amylase, on productive performance, milk fatty acid composition, purine derivatives, ruminal microbial synthesis, and feeding behavior of lactating dairy cows. Thirty-three Holstein dairy cows were blocked by days in milk (78.0 ± 9.51) and allocated according to the milk yield into the treatments: i) no feed additives (CTRL); ii) essential oils (EO), the addition of a blend of essential oils [100 mg/kg dry matter (DM) basis]; and iii) essential oils + amylase (EOam), a combination of essential oils and Alfa-amylase (625 mg/kg DM; provided to achieve 375 KNU/kg of DM). Diets were formulated to requirements supply of 32.0 kg/d and 20.0 kg/d of milk yield and dry matter intake (DMI), respectively, and contained 298 g/kg NDF; 172 g/kg CP, and 282 g/kg starch; DM basis. Cows were adapted to the experimental diets for 14 days and the measurements lasted 56 days. Cows were milked twice daily, and milk samples were collected three times per week in two sequential milkings, to determine fat, protein, lactose, and urea nitrogen contents. The statistical model considered the fixed effects of diet, the week of the measurement period and its interaction, and the random effect of the block. The feed additive supplementation did not affect the DMI (23.9 kg/d). The EOam treatment increased feed efficiency (1.40) compared with CTRL and EO, but there were no differences between CTRL (1.27) and EO (1.21). The inclusion of feed additives did not increase the plasma glucose concentration. EOam increased the milk yield compared to the CTRL (32.2 vs. 28.7 kg/d, respectively). Although, energy-corrected milk (ECM) was not influenced by feed additives. There were no differences for fat (37.4 g/kg), lactose (45.6 g/kg), and milk urea nitrogen contents (17.3 mg/dL). However, cows fed EO had higher milk protein concentration than EOam-fed cows. The use of essential oils associated with amylase increases the milk yield, but not energy-corrected milk yield; it improves the feed efficiency in Holstein dairy cows in mid-lactation, and shifts some ruminal patterns that slightly change the milk fatty acid profile and feeding behavior. MenosThe aim was to evaluate the effects of essential oils supplementation, associated or not with amylase, on productive performance, milk fatty acid composition, purine derivatives, ruminal microbial synthesis, and feeding behavior of lactating dairy cows. Thirty-three Holstein dairy cows were blocked by days in milk (78.0 ± 9.51) and allocated according to the milk yield into the treatments: i) no feed additives (CTRL); ii) essential oils (EO), the addition of a blend of essential oils [100 mg/kg dry matter (DM) basis]; and iii) essential oils + amylase (EOam), a combination of essential oils and Alfa-amylase (625 mg/kg DM; provided to achieve 375 KNU/kg of DM). Diets were formulated to requirements supply of 32.0 kg/d and 20.0 kg/d of milk yield and dry matter intake (DMI), respectively, and contained 298 g/kg NDF; 172 g/kg CP, and 282 g/kg starch; DM basis. Cows were adapted to the experimental diets for 14 days and the measurements lasted 56 days. Cows were milked twice daily, and milk samples were collected three times per week in two sequential milkings, to determine fat, protein, lactose, and urea nitrogen contents. The statistical model considered the fixed effects of diet, the week of the measurement period and its interaction, and the random effect of the block. The feed additive supplementation did not affect the DMI (23.9 kg/d). The EOam treatment increased feed efficiency (1.40) compared with CTRL and EO, but there were no differences between CTRL (1.27) and EO (1.... Mostrar Tudo |
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Thesagro: |
Gado Leiteiro; Gordura Láctea; Leite; Produção Leiteira; Proteína; Rendimento. |
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Thesaurus NAL: |
Dairy cows; Feed additives; Milk fat; Milk protein yield. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 03373naa a2200373 a 4500
001 2152134
005 2023-08-22
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.anifeedsci.2023.115575$2DOI
100 1 $aSILVA, A. S.
245 $aEffects of essential oils supplementation, associated or not with amylase, on dry matter intake, productive performance, and nitrogen metabolism of dairy cows.$h[electronic resource]
260 $c2023
520 $aThe aim was to evaluate the effects of essential oils supplementation, associated or not with amylase, on productive performance, milk fatty acid composition, purine derivatives, ruminal microbial synthesis, and feeding behavior of lactating dairy cows. Thirty-three Holstein dairy cows were blocked by days in milk (78.0 ± 9.51) and allocated according to the milk yield into the treatments: i) no feed additives (CTRL); ii) essential oils (EO), the addition of a blend of essential oils [100 mg/kg dry matter (DM) basis]; and iii) essential oils + amylase (EOam), a combination of essential oils and Alfa-amylase (625 mg/kg DM; provided to achieve 375 KNU/kg of DM). Diets were formulated to requirements supply of 32.0 kg/d and 20.0 kg/d of milk yield and dry matter intake (DMI), respectively, and contained 298 g/kg NDF; 172 g/kg CP, and 282 g/kg starch; DM basis. Cows were adapted to the experimental diets for 14 days and the measurements lasted 56 days. Cows were milked twice daily, and milk samples were collected three times per week in two sequential milkings, to determine fat, protein, lactose, and urea nitrogen contents. The statistical model considered the fixed effects of diet, the week of the measurement period and its interaction, and the random effect of the block. The feed additive supplementation did not affect the DMI (23.9 kg/d). The EOam treatment increased feed efficiency (1.40) compared with CTRL and EO, but there were no differences between CTRL (1.27) and EO (1.21). The inclusion of feed additives did not increase the plasma glucose concentration. EOam increased the milk yield compared to the CTRL (32.2 vs. 28.7 kg/d, respectively). Although, energy-corrected milk (ECM) was not influenced by feed additives. There were no differences for fat (37.4 g/kg), lactose (45.6 g/kg), and milk urea nitrogen contents (17.3 mg/dL). However, cows fed EO had higher milk protein concentration than EOam-fed cows. The use of essential oils associated with amylase increases the milk yield, but not energy-corrected milk yield; it improves the feed efficiency in Holstein dairy cows in mid-lactation, and shifts some ruminal patterns that slightly change the milk fatty acid profile and feeding behavior.
650 $aDairy cows
650 $aFeed additives
650 $aMilk fat
650 $aMilk protein yield
650 $aGado Leiteiro
650 $aGordura Láctea
650 $aLeite
650 $aProdução Leiteira
650 $aProteína
650 $aRendimento
700 1 $aCORTINHAS, C. S.
700 1 $aACEDO, A. C.
700 1 $aLOPES, F. C. F.
700 1 $aARRIGONI, M. B.
700 1 $aTOMICH, T. R.
700 1 $aPEREIRA, L. G. R.
700 1 $aFERREIRA, M. H.
700 1 $aJAGUARIBE, T. L.
700 1 $aWEBER, C. T.
700 1 $aMORENZ, M. J. F.
773 $tAnimal Feed Science and Technology$gv. 297, 115575, 2023.
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