Substitution of corn by mesquite pod meal in pellet diets for lambs: nitrogen compounds metabolism

Pereira, M. L. A.; Pereira, T. C. J.; Silva, H. G. O.; Cruz, Jurandir Ferreira da; Almeida, Paulo José Presídio; Santos, Alana Batista dos; Santos, Edileusa de Jesus dos; Peixoto, Christina Alves

doi:10.3920/978-90-8686-781-3_20

Cited by 5 publications

(4 citation statements)

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“…Similarly, Pereira et al [68] compared urine sampling techniques (24-h total and spot urine) in lambs fed unconventional feedstuff, and suggested sampling at any time point after the feeding to obtain the PDE with the urine volume estimated by average daily creatinine excretion measured in each experimental diet.…”

Section: Discussionmentioning

confidence: 99%

Creatinine as a Urinary Marker of the Purine Derivatives Excretion in Urine Spot Samples of Lambs Fed Peach Palm Meal

Pereira

Carvalho

et al. 2022

Animals

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The objective was to evaluate the influence of diets on lambs using different levels of peach palm meal as a replacement for maize (0, 10, 40, 60, and 85% of diet dry matter) on the endogenous creatinine clearance (CC), urine concentration ratio of purine derivatives to creatinine (PDC index), and daily creatinine excretion (DCE) as a marker to estimate purine derivatives (PD) excretion from urinary spot samples collected at different time points (4, 8, 12, 16, 20, 24 h after morning feeding) compared to 24-h total urine collection. The measured parameters were voluntary intake, urinary volume, CC, DCE, the concentration of plasma creatinine, and PD and purine derivatives’ excretion (PDE). Five lambs were allocated to metabolic cages and distributed in a 5 × 5 Latin square. Urine collection was taken daily on days 16 to 19 of each experimental period. The inclusion of peach palm meal linearly reduced the intake of dry matter (g kg BW−0.75, p = 0.005), crude protein (g kg BW−0.75, p = 0.010), metabolizable energy (MJ kg BW−0.75, p = 0.010) and CC (p < 0.0001). It also quadratically affected the urinary volume (p = 0.008) and DCE (p = 0.004). There was a linear decrease for PDC index (p = 0.032) and PDE (p < 0.0001) measured in the 24-h total urine with peach palm meal levels. The different times of spot urine sampling did not affect (p > 0.05) the PDC index and PDE. Peach palm meal decreases the CC thereby compromising the use of a mean value of DCE as a PDE marker in spot urine samples. There is greater accuracy when using different values of DCE obtained for each diet as markers for the PDE in spot urine samples. Unconventional foodstuffs of low palatability affecting the voluntary intake of feed change the renal function.

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Section: Discussionmentioning

confidence: 99%

Creatinine as a Urinary Marker of the Purine Derivatives Excretion in Urine Spot Samples of Lambs Fed Peach Palm Meal

Pereira

Carvalho

et al. 2022

Animals

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“…However, in the present study the use of RTPM levels in the diets affected the daily excretion of creatinine, making it unfeasible to use single average value for creatinine daily excretion to estimate the urine volume (Pereira, 2015). Pereira et al (2013b) and Pereira (2015) reported that the change of the glomerular filtration rate can interfere with accuracy of the technique of purine derivatives excretion to estimate the microbial protein synthesis, thereby, requiring an assessment of daily creatinine excretion in different diets.…”

Section: Discussionmentioning

confidence: 99%

Creatinine and purine derivatives excretion and microbial synthesis in lambs fed rain tree pod meal

Sousa

Pereira

Silva

et al. 2022

Arq. Bras. Med. Vet. Zootec.

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Evaluated the levels of rain tree (Samanea saman) pod meal (RTPM) (0, 10, 15, 20 and 25%) replacing maize in the dry matter of the diet on intake of DM, CP and ME, creatinine and total purine derivatives excretion in urine and microbial protein synthesis in lambs. Twenty-five uncastrated Bergamasca lambs were used, with an initial body weight of 24±5kg and an average age of 120 days. The experimental design was completely randomized, with five treatments and five replications. The trial lasted 84 days and the 24h and spot urine collections were performed in the last day of the experiment. The intake was not affected (P>0.05), the urine volume and daily creatinine excretion were influenced (P<0.05) by RTPM replacing maize, observing increasing linear effect and cubic variation (P<0.05), respectively. The cubic and quadratic components were significant (P<0.05) for the excretion of total purine derivatives, absorbed purines, and microbial synthesis. The cubic variation, with peaks at 5% and 18% replacement for urinary excretion of creatinine and purine derivatives, indicates that the levels used of RTPM affected the renal activity of lambs. Substitution of maize by RTPM up to 10% enhances efficiency of rumen microbial crude protein synthesis.

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“…The daily excretion of creatinine (mg/day) was determined by multiplying the average BW of each lamb by excretion coefficient of 17.05 mg of creatinine per kilogram of BW (Pereira et al ., 2013), as shown below:where DEC = daily excretion of creatinine (mg/day); BW = animal body weight (kg).…”

Section: Methodsmentioning

confidence: 99%

Effect of cottonseed processing and chitosan supplementation on lamb performance, digestibility and nitrogen digestion

et al. 2019

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The current study was carried out to examine the effect of cottonseed processing and chitosan supplementation on lamb performance, digestibility and nitrogen digestion. Eighty uncastrated Santa Inês lambs (23 ± 2.2 kg average weight, 4 months old) were distributed in a completely randomized design in a 2 × 2 factorial arrangement that consisted of two cottonseed processing forms (whole or ground) and two chitosan levels (0 or 136 mg/kg live weight). Higher dry matter and organic matter apparent digestibility coefficient (ADC) was achieved with the diets containing the whole cottonseed. Ether extract ADC was higher in the animals fed the chitosan-containing diet. There was an interaction effect on the ADC of neutral detergent fibre corrected for ash and protein, which increased with chitosan inclusion associated with the whole cottonseed. The lambs that received the treatment containing the whole cottonseed showed higher microbial protein synthesis. Chitosan addition increased nitrogen retention. The animals fed chitosan-containing diets showed higher microbial protein synthesis. There was an interaction effect on microbial protein synthesis. Whole cottonseed associated with chitosan in lamb diets increases ether extract ADC and microbial protein synthesis.

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Substitution of corn by mesquite pod meal in pellet diets for lambs: nitrogen compounds metabolism

Cited by 5 publications

References 0 publications

Creatinine as a Urinary Marker of the Purine Derivatives Excretion in Urine Spot Samples of Lambs Fed Peach Palm Meal

Creatinine as a Urinary Marker of the Purine Derivatives Excretion in Urine Spot Samples of Lambs Fed Peach Palm Meal

Creatinine and purine derivatives excretion and microbial synthesis in lambs fed rain tree pod meal

Effect of cottonseed processing and chitosan supplementation on lamb performance, digestibility and nitrogen digestion

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