Consumo, digestibilidade dos nutrientes e comportamento ingestivo de vacas leiteiras alimentadas com castanha de caju

Pimentel, Patrícia Guimarães; Reis, Ricardo Andrade; Leite, L.A.; Campo, Warley Efrem; Neiva, José Neuman Miranda; Saturnino, H.M.; Coelho, Sandra Gesteira

doi:10.1590/s0102-09352012000300016

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…Despite the increase in lipid content in the diet (EE average of 102.5 g kg -1 in the diets with sunflower silage), the digestibility of the fibrous fraction was not influenced. Pimentel et al (2012) did not observe a decrease in DMI or digestibility of the fibrous fraction of the diet of dairy cows fed up to 73.1 g kg -1 of EE.…”

Section: Discussioncontrasting

confidence: 58%

Performance of lactating dairy cows fed sunflower or corn silages and concentrate based on citrus pulp or ground corn

et al. 2017

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-This study aimed to evaluate the effect of diets containing sunflower or corn silages and concentrate based on citrus pulp or ground corn on intake, apparent digestibility, feeding behavior, microbial protein production, and production, composition, and fatty acid profile of milk from dairy cows. Eight multiparous lactating Holstein cows (586±61 kg live weight; 25.0±4.0 kg daily milk yield at 80 to 120 days in milk) were randomly assigned to a double 4 × 4 Latin square design with a 2 × 2 factorial array. The experimental diets were: sunflower silage + citrus pulp-based concentrate; sunflower silage + ground corn-based concentrate; corn silage + citrus pulp-based concentrate; and corn silage + ground corn-based concentrate. The dry matter intake was highest for diets containing sunflower silage and lowest for diets with citrus pulp. Sunflower silage provided the highest intakes of crude protein, neutral detergent fiber, and ether extract. Except for the ether extract, the type of forage and carbohydrate did not influence the apparent nutrient digestibility. The forage and carbohydrate sources did not influence the feed eating time, but animals fed sunflower silage showed decreased rumination time and chewing activity. The microbial protein production was not altered with the diets. No differences were observed for milk production or composition, except for the milk urea nitrogen and lactose concentration. The type of forage influenced the milk fatty acid profile, to which corn silage presented higher values for fatty acids up to a 17-carbon chain length. The inclusion of sunflower silage and citrus pulp, compared with corn silage and ground corn, alters dry matter intake and ingestive behavior, but maintains milk production and composition with satisfactory characteristics of the milk fatty acid profile, providing an alternative feed for dairy cows.

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Section: Discussioncontrasting

confidence: 58%

Performance of lactating dairy cows fed sunflower or corn silages and concentrate based on citrus pulp or ground corn

et al. 2017

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“…The increased lipid content in diets with increased levels of CM may be another reason for the reduction in CADDM, as was observed by Pimentel et al (2012). A decrease in CADDM is common in diets that have high lipid content (SOUZA JÚNIOR et al, 2011).…”

Section: Methodsmentioning

confidence: 89%

Ovine feed intake, digestibility, and nitrogen balance in feeds containing different amounts of cupuaçu meal

et al. 2015

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Twenty neutered male sheep were subjected to 26 days of a metabolic assay at Embrapa Eastern Amazon in Belém, PA, Brazil (01°26'02"S and 48°26'21"W; altitude 8 m). The trial followed a completely randomized design, with five treatments and four repetitions. Treatment A (control) consisted of a diet containing 100% grass. The diet in treatment B contained 10% CM and 90% grass; that in treatment C contained 20% CM and 80% grass; that in treatment D contained 40% CM and 60% grass; and that in treatment E contained 60% CM and 40% grass. Intake of experimental diet and apparent digestibility coefficient of dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), ethereal extract (EE), cellulose (CEL), hemicellulose (HEM), and nitrogen balance (NB) were assessed. Results showed that the level of CM replacement significantly affected intake of mineral matter (IMM), crude protein (ICP), ethereal extract (IEE), and cellulose (ICEL), with the highest (P < 0.05) values of IMM, ICP, and IEE being observed for feed in which 60% of grass was replaced by CM, indicating that the acceptance of the experimental diet was good. ICEL decreased as levels of CM replacement increased. At 40% replacement, the apparent DM digestibility coefficient was the lowest (41.54%) and did not statistically differ from diets with 60% (45.74%) and 20% (54.19%) CM replacement. The lowest values for the apparent digestibility coefficients of OM, CP, NDF, and ADF were observed when grass was replaced with 40% and 60% CM. For diets with up to 20% replacement of Mombaça grass by CM, the apparent digestibility coefficients of DM, OM, NDF, and ADF were the highest and did not significantly differ from those of the control treatment. Nitrogen excretion in feces differed significantly; the lowest values were found with 0%, 10%, and 20% CM replacement. Use of CM represents an alternative method of dietary supplementation for ruminants and is a good source of protein and energy, since replacing Mombaça grass with increasing levels of CM led to an increase in the voluntary feed intake by ovines. ResumoRealizou-se ensaio metabólico, com 20 ovinos machos, castrados, na Embrapa Amazônia Oriental, Belém, Pará (1º28′ S 48º27′ W), durante 26 dias. O delineamento foi inteiramente casualizado, em cinco tratamentos e quatros repetições. Tratamento A (Controle): 100% de gramínea; Tratamento B: 10% de TC e 90% de gramínea; Tratamento C: 20% de TC e 80% de gramínea; Tratamento D: 40% de TC e 60% de gramínea; e Tratamento E: 60% de TC e 40% de gramínea. Foram avaliados consumo e coeficientes de digestibilidade aparente da matéria seca (MS), matéria orgânica (MO), proteína bruta (PB), fibra em detergente neutro (FDN), fibra em detergente ácido (FDA), extrato etéreo (EE), celulose (CEL), hemicelulose (HEM) e balanço de nitrogênio (BN) das dietas experimentais. Os níveis de substituição de gramínea por TC promoveram diferenças significativas nos consumos de matéria mineral (CMM), proteína bruta (CPB), extrato...

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Consumo, digestibilidade dos nutrientes e comportamento ingestivo de vacas leiteiras alimentadas com castanha de caju

Cited by 2 publications

References 8 publications

Performance of lactating dairy cows fed sunflower or corn silages and concentrate based on citrus pulp or ground corn

Performance of lactating dairy cows fed sunflower or corn silages and concentrate based on citrus pulp or ground corn

Ovine feed intake, digestibility, and nitrogen balance in feeds containing different amounts of cupuaçu meal

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