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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
13/05/2019 |
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Actualizado : |
27/01/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
MENDOZA, A.; WIJMA, R.; MORALES-PIÑEYRUA, J.; CAVESTANY, D. |
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Afiliación : |
ALEJANDRO FRANCISCO MENDOZA AGUIAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.//Departamento de Bovinos, Facultad de Veterinaria, Universidad de la República, San José, Uruguay.; ROBERT WIJMA CABRERA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.//Servicios técnicos vacuno de leche, COVAP, Ctra. Canaleja, CP 14400, Pozoblanco, Spain.; JESSICA TATIANA MORALES PIÑEYRUA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DANIEL CAVESTANY BOCKING, Departamento de Reproducción, Facultad de Veterinaria, Universidad de la República, Uruguay.//Unidad de Posgrados,Facultad de Veterinaria,Universidad de la República,Uruguay. |
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Título : |
Carbohydrate source offered in the prepartum diet did not affect postpartum metabolic status or milk yield in dairy cows. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
Animal, Volume 13, Issue 10, 2019, Pages 2289-2296. Doi: https://doi.org/10.1017/S1751731119000387 |
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ISSN : |
1751-732X (Online) |
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DOI : |
10.1017/S1751731119000387 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 10 July 2018.// Accepted 5 February 2019//Published online: 05 March 2019/ Available online 7 December 2020. |
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Contenido : |
Abstract: Increasing the provision of non- fibrou s carbohydrate s (NFC) during the prepartum period is a feeding strategy that has been recommended to facilitate the transition to the onset of lactation and improve dairy cow performance, but results ar e contradictory, probably because most studies have confounded the effect s of level and source of energy. The objective of this experiment was to evaluate the effect of the source of carbohydrate offered in the prepartum diet on postpartum cow performance. Holstein dairy cows ( n = 24) were assigned to receive diets with either low (LNFC ), or high (HNFC) levels of NFC during the last 3 weeks before expec ted calving date according to a randomized complete block design. Soybean hulls and corn grain were the main energy ingredient s in the LNFC and HNFC total mixed rations (TMR), respectively, and diet s were designed t o be isocaloric and isopoteic. After calving, all cows were managed as a single group until da y 56 postpartum and grazed on improved pastures and were supplemented with a TMR. Body condition score evaluation and blood sampling were performed weekly throughout the experimental period to monitor the metabolic status of the animals. Prepartum glucose concentrations tended to be greater in HNFC than LNFC, but there was no effect on prepartum or postpartum insulin concentrations. Although nutrient intake was greater in the immediate week after calving in HNFC than LNFC, treatment did not affect milk yield and composition. In conclusion, increasing the NFC intake during the prepartum period, at a similar level of energy and protein intake , had a margin al residual effect on postpartum intake, and did not affect metabolic status or milk production . MenosAbstract: Increasing the provision of non- fibrou s carbohydrate s (NFC) during the prepartum period is a feeding strategy that has been recommended to facilitate the transition to the onset of lactation and improve dairy cow performance, but results ar e contradictory, probably because most studies have confounded the effect s of level and source of energy. The objective of this experiment was to evaluate the effect of the source of carbohydrate offered in the prepartum diet on postpartum cow performance. Holstein dairy cows ( n = 24) were assigned to receive diets with either low (LNFC ), or high (HNFC) levels of NFC during the last 3 weeks before expec ted calving date according to a randomized complete block design. Soybean hulls and corn grain were the main energy ingredient s in the LNFC and HNFC total mixed rations (TMR), respectively, and diet s were designed t o be isocaloric and isopoteic. After calving, all cows were managed as a single group until da y 56 postpartum and grazed on improved pastures and were supplemented with a TMR. Body condition score evaluation and blood sampling were performed weekly throughout the experimental period to monitor the metabolic status of the animals. Prepartum glucose concentrations tended to be greater in HNFC than LNFC, but there was no effect on prepartum or postpartum insulin concentrations. Although nutrient intake was greater in the immediate week after calving in HNFC than LNFC, treatment did not affect milk yield an... Presentar Todo |
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Palabras claves : |
DAIRY COW; GRAZING; HIDRATOS DE CARBONO NO FIBROSOS; NON-FIBROUS CARBOHYDRATES; PERÍODO DE TRANSICIÓN; STARCH; TRANSITION PERIOD; VACA LECHERA. |
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Thesagro : |
ALMIDÓN; PASTOREO; PRODUCCION LECHERA. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 02886naa a2200325 a 4500
001 1059761
005 2021-01-27
008 2019 bl uuuu u00u1 u #d
022 $a1751-732X (Online)
024 7 $a10.1017/S1751731119000387$2DOI
100 1 $aMENDOZA, A.
245 $aCarbohydrate source offered in the prepartum diet did not affect postpartum metabolic status or milk yield in dairy cows.$h[electronic resource]
260 $c2019
500 $aArticle history: Received 10 July 2018.// Accepted 5 February 2019//Published online: 05 March 2019/ Available online 7 December 2020.
520 $aAbstract: Increasing the provision of non- fibrou s carbohydrate s (NFC) during the prepartum period is a feeding strategy that has been recommended to facilitate the transition to the onset of lactation and improve dairy cow performance, but results ar e contradictory, probably because most studies have confounded the effect s of level and source of energy. The objective of this experiment was to evaluate the effect of the source of carbohydrate offered in the prepartum diet on postpartum cow performance. Holstein dairy cows ( n = 24) were assigned to receive diets with either low (LNFC ), or high (HNFC) levels of NFC during the last 3 weeks before expec ted calving date according to a randomized complete block design. Soybean hulls and corn grain were the main energy ingredient s in the LNFC and HNFC total mixed rations (TMR), respectively, and diet s were designed t o be isocaloric and isopoteic. After calving, all cows were managed as a single group until da y 56 postpartum and grazed on improved pastures and were supplemented with a TMR. Body condition score evaluation and blood sampling were performed weekly throughout the experimental period to monitor the metabolic status of the animals. Prepartum glucose concentrations tended to be greater in HNFC than LNFC, but there was no effect on prepartum or postpartum insulin concentrations. Although nutrient intake was greater in the immediate week after calving in HNFC than LNFC, treatment did not affect milk yield and composition. In conclusion, increasing the NFC intake during the prepartum period, at a similar level of energy and protein intake , had a margin al residual effect on postpartum intake, and did not affect metabolic status or milk production .
650 $aALMIDÓN
650 $aPASTOREO
650 $aPRODUCCION LECHERA
653 $aDAIRY COW
653 $aGRAZING
653 $aHIDRATOS DE CARBONO NO FIBROSOS
653 $aNON-FIBROUS CARBOHYDRATES
653 $aPERÍODO DE TRANSICIÓN
653 $aSTARCH
653 $aTRANSITION PERIOD
653 $aVACA LECHERA
700 1 $aWIJMA, R.
700 1 $aMORALES-PIÑEYRUA, J.
700 1 $aCAVESTANY, D.
773 $tAnimal, Volume 13, Issue 10, 2019, Pages 2289-2296. Doi: https://doi.org/10.1017/S1751731119000387
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INIA La Estanzuela (LE) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
06/03/2019 |
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Actualizado : |
30/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
PASTORINI, M.; POMIÉS, N.; REPETTO, J.; MENDOZA, A.; CAJARVILLE, C. |
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Afiliación : |
M. PASTORINI, Campo Experimental N°2, Facultad de Veterinaria, Universidad de la República, Ruta 1 km 42, CP 80100 San José, Uruguay.; N. POMIÉS, Departamento de Nutrición Animal, Instituto de Producción Animal, Facultad de Veterinaria, Universidad de la República, Ruta 1 km 42, CP 80100 San José, Uruguay.; JOSE LUIS REPETTO CAPELLO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.//Departamento de Bovinos, Instituto de Producción Animal, Facultad de Veterinaria, Universidad de la República, Ruta 1 km 42, CP 80100 San José, Uruguay.; ALEJANDRO FRANCISCO MENDOZA AGUIAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.//Departamento de Bovinos, Instituto de Producción Animal, Facultad de Veterinaria, Universidad de la República, Ruta 1 km 42, CP 80100 San José, Uruguay.; CECILIA CAJARVILLE, Departamento de Nutrición Animal, Instituto de Producción Animal, Facultad de Veterinaria, Universidad de la República, Ruta 1 km 42, CP 80100 San José, Uruguay. |
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Título : |
Productive performance and digestive response of dairy cows fed different diets combining a total mixed ration and fresh forage. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
Journal of Dairy Science, May 2019, Volume 102, Issue 5, Pages 4118-4130. |
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DOI : |
10.3168/jds.2018-15389 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received July 16, 2018. //Accepted January 2, 2019. |
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Contenido : |
ABSTRACT:
The purpose of this experiment was to determine the effects of feeding increasing levels of fresh forage (FF) as a proportion of total dry matter intake (DMI) on nutrient intake, rumen digestion, nutrient utilization, and productive performance of total mixed ration (TMR)-fed cows. Twelve dairy cows (90 ± 22 d in milk, 523 ± 88 kg of body weight, 7,908 ± 719 kg of milk production in the previous lactation) were housed in individual tiestalls and assigned to treatments according to a 3 × 3 Latin square design replicated 4 times. Treatments were 100% TMR (T100), 75% TMR plus 25% FF (T75), and 50% TMR plus 50% FF (T50). The experiment lasted 60 d, divided into 3 periods of 20 d each; the first 12 d of each period were used for diet adaptation and the last 8 d for data collection. The TMR (18.1% crude protein, 24.6% acid detergent fiber) and FF (Lolium multiflorum; 15.1% crude protein, 24.1% acid detergent fiber) were prepared and cut daily and offered to each cow individually. The highest DMI was reached in T100 and T75, which was reflected in greater intake of the different nutrients than T50. No differences were detected in the apparent total digestibility of the nutrients, mean ruminal pH, and total volatile fatty acid concentrations among treatments. Cows in T50 resulted in the lowest ruminal N-NH3 concentration and the lowest microbial N flow to the duodenum. Milk yield was 8.5% higher from cows in T100 and T75 compared with T50, but we observed no differences for milk fat or milk protein yield among treatments. Milk fat of cows fed T50 had 8% more unsaturated fatty acids (FA) than that of cows fed T100, mostly because of a higher content of monounsaturated FA. Additionally, cows in T50 had a higher concentration of linoleic acid, vaccenic acid, and rumenic acid than T100. Meanwhile, the concentration of linoleic acid and vaccenic acid in cows fed T75 was higher than T100. The milk fat of the cows fed T50 and T75 had a lower n-6:n-3 ratio than T100. We concluded that including up to 29% of FF in the total DMI in combination with a TMR did not affect the intake or digestion of nutrients or the productive response in dairy cows and resulted in a higher concentration of desirable FA from a consumer's perspective. MenosABSTRACT:
The purpose of this experiment was to determine the effects of feeding increasing levels of fresh forage (FF) as a proportion of total dry matter intake (DMI) on nutrient intake, rumen digestion, nutrient utilization, and productive performance of total mixed ration (TMR)-fed cows. Twelve dairy cows (90 ± 22 d in milk, 523 ± 88 kg of body weight, 7,908 ± 719 kg of milk production in the previous lactation) were housed in individual tiestalls and assigned to treatments according to a 3 × 3 Latin square design replicated 4 times. Treatments were 100% TMR (T100), 75% TMR plus 25% FF (T75), and 50% TMR plus 50% FF (T50). The experiment lasted 60 d, divided into 3 periods of 20 d each; the first 12 d of each period were used for diet adaptation and the last 8 d for data collection. The TMR (18.1% crude protein, 24.6% acid detergent fiber) and FF (Lolium multiflorum; 15.1% crude protein, 24.1% acid detergent fiber) were prepared and cut daily and offered to each cow individually. The highest DMI was reached in T100 and T75, which was reflected in greater intake of the different nutrients than T50. No differences were detected in the apparent total digestibility of the nutrients, mean ruminal pH, and total volatile fatty acid concentrations among treatments. Cows in T50 resulted in the lowest ruminal N-NH3 concentration and the lowest microbial N flow to the duodenum. Milk yield was 8.5% higher from cows in T100 and T75 compared with T50, but we observed no differences fo... Presentar Todo |
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Palabras claves : |
FORRAJE FRESCO (FF); INGESTA TOTAL DE MATERIA SECA (DMI); MILK PRODUCTION; PASTURE; RENDIMIENTO PRODUCTIVO DE LA RACIÓN MIXTA TOTAL (TMR); RUMENIC ACID; RUMINAL FERMENTATION; SISTEMA DE ALIMENTACIÓN; TOTAL MIXED RATION. |
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Thesagro : |
ALIMENTACIÓN; VACAS LECHERAS. |
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Asunto categoría : |
L02 Alimentación animal |
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Marc : |
LEADER 03375naa a2200325 a 4500
001 1059591
005 2019-10-30
008 2019 bl uuuu u00u1 u #d
024 7 $a10.3168/jds.2018-15389$2DOI
100 1 $aPASTORINI, M.
245 $aProductive performance and digestive response of dairy cows fed different diets combining a total mixed ration and fresh forage.$h[electronic resource]
260 $c2019
500 $aArticle history: Received July 16, 2018. //Accepted January 2, 2019.
520 $aABSTRACT: The purpose of this experiment was to determine the effects of feeding increasing levels of fresh forage (FF) as a proportion of total dry matter intake (DMI) on nutrient intake, rumen digestion, nutrient utilization, and productive performance of total mixed ration (TMR)-fed cows. Twelve dairy cows (90 ± 22 d in milk, 523 ± 88 kg of body weight, 7,908 ± 719 kg of milk production in the previous lactation) were housed in individual tiestalls and assigned to treatments according to a 3 × 3 Latin square design replicated 4 times. Treatments were 100% TMR (T100), 75% TMR plus 25% FF (T75), and 50% TMR plus 50% FF (T50). The experiment lasted 60 d, divided into 3 periods of 20 d each; the first 12 d of each period were used for diet adaptation and the last 8 d for data collection. The TMR (18.1% crude protein, 24.6% acid detergent fiber) and FF (Lolium multiflorum; 15.1% crude protein, 24.1% acid detergent fiber) were prepared and cut daily and offered to each cow individually. The highest DMI was reached in T100 and T75, which was reflected in greater intake of the different nutrients than T50. No differences were detected in the apparent total digestibility of the nutrients, mean ruminal pH, and total volatile fatty acid concentrations among treatments. Cows in T50 resulted in the lowest ruminal N-NH3 concentration and the lowest microbial N flow to the duodenum. Milk yield was 8.5% higher from cows in T100 and T75 compared with T50, but we observed no differences for milk fat or milk protein yield among treatments. Milk fat of cows fed T50 had 8% more unsaturated fatty acids (FA) than that of cows fed T100, mostly because of a higher content of monounsaturated FA. Additionally, cows in T50 had a higher concentration of linoleic acid, vaccenic acid, and rumenic acid than T100. Meanwhile, the concentration of linoleic acid and vaccenic acid in cows fed T75 was higher than T100. The milk fat of the cows fed T50 and T75 had a lower n-6:n-3 ratio than T100. We concluded that including up to 29% of FF in the total DMI in combination with a TMR did not affect the intake or digestion of nutrients or the productive response in dairy cows and resulted in a higher concentration of desirable FA from a consumer's perspective.
650 $aALIMENTACIÓN
650 $aVACAS LECHERAS
653 $aFORRAJE FRESCO (FF)
653 $aINGESTA TOTAL DE MATERIA SECA (DMI)
653 $aMILK PRODUCTION
653 $aPASTURE
653 $aRENDIMIENTO PRODUCTIVO DE LA RACIÓN MIXTA TOTAL (TMR)
653 $aRUMENIC ACID
653 $aRUMINAL FERMENTATION
653 $aSISTEMA DE ALIMENTACIÓN
653 $aTOTAL MIXED RATION
700 1 $aPOMIÉS, N.
700 1 $aREPETTO, J.
700 1 $aMENDOZA, A.
700 1 $aCAJARVILLE, C.
773 $tJournal of Dairy Science, May 2019, Volume 102, Issue 5, Pages 4118-4130.
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