Balanço hídrico e excreção renal de metabólitos em ovinos alimentados com palma forrageira (Nopalea cochenillifera Salm Dyck)

Abstract

ABSTRACT.-Neto J.P., Soares P.C., Batisa A.M.V., Andrade S.F.J., Andrade R.P.X., Lucena R. This study aimed to assess fluid balance and renal excretion of metabolites in lambs without defined breed standard, fed different forage cactus (Nopalea cochenillifera Salm Dyck), in natura and bran. 20 lambs were used, with initial body weight of 20 kg and were distributed in a completely randomized design, with five treatments and four repetitions. The experimental diets consisted of a control diet based on Bermuda grass hay, soybean meal, limestone and mineral supplement, other treatments aimed at testing different levels of cactus pear plus urea in two forms: fresh and mash and two levels of substitution (50 and 100%) of dry matter of hay. Blood and urine samples were collected for determination of different metabolites and minerals and use of equations to determine the rates of urinary excretion of these metabolites, rate of endogenous creatinine clearance and electrolyte reabsorption of free water, in addition to recording of water intake and urine volume. The voluntary water intake was influenced by the diets, and the animals subjected to diets containing soybean meal and hay palm and cactus meal were higher than other treatments. Water intake via food was also influenced by diet, being higher in animals fed palm fresh and bran over palm in nature. With respect to total water intake was greater for cows fed diets containing palm in nature compared to the other treatments. The experimental diets influenced the renal excretion of purine metabolites and minerals derived, without changing renal function. The presence of cactus pear both as bran as in nature provides increased urine volume without changing renal function, and to be considered as an excellent food strategy in semiarid.

Forage sources in diets for dairy goats

“…Thus, water intake was lower through the drinking fountain for SSCF and BHCF (48.56% and 51.87%, respectively). This behavior confirms the report by Neto et al (2016) and Sousa et al (2018) that water is a limited supply in the semiarid and may be an obstacle to livestock production, however, when consuming succulent foods, water intake may be very low or zero. Succulent foods, characterized by high water concentrations and low dry matter content, for example, forages and preserves, such as silage, can be important sources of water for goats raised in the semiarid region (Gedir et al, 2016).…”

Comportamento ingestivo de ovinos alimentados com diferentes níveis de resíduo úmido de cervejaria

“…Para ingestão de água, foi observado efeito (P<0,05) de RUC, sendo que os menores níveis (0, 10 e 20%) obtiveram menor frequência, e tal resultado pode ser explicado pelo maior tempo de ruminação nestes níveis, e consequentemente há um maior fluxo de saliva, ocorrendo uma maior diluição das fibras, favorecendo uma menor frequência de ingestão de água pelo animal (NETO et al, 2016), onde a água é um dos principais nutrientes para o metabolismo dos animais, em que sua obtenção pode ser por via direta ou por meio da dieta.…”

Use of palm bran (&lt;i&gt;Nopalea cochenillifera&lt;/i&gt; (L.) Salm-Dyck) in partial replacement of concentrate in maintenance equine diets – a pilot study

“…P. G. Rodrigues et al: Use of palm bran in partial replacement of concentrate in maintenance equine diets an average of 11.9 % dry matter (DM) as well as (based on DM) 4.4 % crude protein (CP), 27.3 % neutral detergent fiber (NDF), 17.3 % acid detergent fiber (ADF) and 1.8 % ether extract (EE) (Silva et al, 2017;Carvalho et al, 2018). Palm bran also has a low starch concentration and a high content of soluble carbohydrate; pectin; vitamins A, B, E and C; and minerals such as calcium, magnesium and potassium (Nunes et al, 2011;Neto et al, 2016).…”