scholarly journals Evaluation of Two Procedures to Determine Acid and Neutral Detergent Fibers in Ruminant Feeds of the Temperate Region of Argentina

2005 ◽  
Vol 88 (4) ◽  
pp. 995-997 ◽  
Author(s):  
José P Fay ◽  
María S Guaita ◽  
José L Danelón ◽  
Sonia Chifflet ◽  
Marisa Wawrzkiewicz ◽  
...  

Abstract The objective of this work was to compare the traditional Van Soest's procedure to analyze neutral detergent fibers (NDF) and acid detergent fibers (ADF) using filtering crucibles (VS) with a semiautomatic method which uses filter bags in an ANKOM Technology Corp. instrument (ANK). Nine ruminant feeds widely used in the temperate region of Argentina were analyzed: soybean meal expeller, alfalfa, pasture silage, ryegrass, corn silage, weeping lovegrass, tall wheatgrass, guinea grass, and barley grass. Four runs were done for each technique and feed. The comparison of ADF and NDF means by the means test for paired samples showed no significant differences between techniques (α = 0.01). The variability among runs was greater with the VS method than the ANK, both for NDF, standard deviation (SD) = 0.71 vs 0.39, and for ADF, SD = 0.83 vs 0.56, but the differences were not significant. The linear regressions were VS = 1.43 + 0.95 ANK; R2 = 0.99, and VS = 0.53 + 0.98 ANK; R2 = 0.99 for NDF and ADF, respectively, which indicated a strong linear relationship among the results of both procedures. It was concluded that the ANK procedure gave results comparable to those of the VS method when ruminant feeds from the temperate region of Argentina were analyzed.

Author(s):  
Dr. Jyoti Kumari ◽  
Dr. Dev Kant ◽  
Dr. Mala Mahto

Objectives: This present study was to compare the serum electrolytes (Na, K and Cl) imbalances in hypothyroidism, hyperthyroidism with euthyroidism female cases. Methods: A detail history, clinical examinations and relevant investigations were performed to all female thyroid cases. Thyroid hormones were estimated by chemiluminiscence method using Siemens Advia Centaur XP instrument. Electrolyte levels (Na+, k+ & Cl-) were measured by ion selective electrode method using Eschweiler combi. Results: Data was analyzed with the help of SPSS (version 26) software. Paired samples statistics was used. Mean ± standard deviation and t value were calculated. P value was taken less than or equal to 0.05 (p ≤ 0.05) for significant differences. Conclusions: This present study concluded that electrolytes sodium, potassium and chloride levels were significantly reduced in hypothyroidism female cases compared to euthyroids female (controls). This suggests that hypothyroid patients should be regularly checked for serum electrolytes. Early detection and treatment can prevent the further complications related to the disorder and will be helpful during the management of thyroid patients. Key words: Hypothyroidism, hyperthyroidism, euthyroidism, electrolytes.


2020 ◽  
Vol 41 (1) ◽  
pp. 255
Author(s):  
Mariane Moreno Ferro ◽  
Luciano da Silva Cabral ◽  
Livia Vieira de Barros ◽  
Claudio Vieira de Araujo ◽  
Nelcino Francisco de Paula

This study aimed to evaluate the effect of different amounts of incubated samples on the kinetic parameters of in vitro fermentation of roughage and concentrated food used for feeding ruminants. Samples were prepared using 200, 300, 400, and 500 mg of air-dried roughage and concentrated sample, ground to 1 mm, and placed in 120 mL glass flasks. Next, inoculum and McDougal solution were added, and the readings were obtained using a semi-automated pressure transducer up to 96 h after the beginning of the incubations. Gas production of the non-fibrous fraction increased linearly (P < 0.05) for sugarcane, Marandu grass silage, corn silage, dried corn distillers’ grains with solubles, dried brewer’s yeast, bean residue, wet brewer’s grains, sunflower meal, and Jatropha meal; quadratically (P < 0.05) for Napier grass silage and cottonseed meal; and cubically (P < 0.05) for castor meal and soybean meal. The degradation rate of the non-fibrous fraction reduced linearly (P < 0.05) for sugarcane, Napier grass silage, and castor meal; quadratically (P < 0.05) for Marandu grass silage; and cubically (P < 0.05) for corn silage, soybean meal, dried corn distillers’ grains with solubles, bean residue, and cottonseed meal. Gas production of the fibrous fraction increased linearly (P < 0.05) for Napier grass silage, Marandu grass silage, corn silage, dried corn distillers’ grains with solubles, bean residue, wet brewer’s grain, cottonseed meal, and sunflower meal; quadratically ( < 0.05) for Jatropha meal; and cubically (P < 0.05) for sugarcane, castor meal, and soybean meal. The degradation rate of the fibrous fraction increased linearly (P < 0.05) for Napier grass silage, dried corn distillers’ grains with solubles, dried brewer’s yeast, wet brewer’s grains; quadratically (P < 0.05) for corn silage and castor meal; and cubically (P < 0.05) for sugarcane, Marandu grass silage, and bean residue. The lag time reduced linearly (P < 0.05) for castor meal and dried corn distillers’ grains with solubles; quadratically (P < 0.05) for Napier grass silage; and cubically (P < 0.05) for sugarcane, Marandu grass silage, corn silage, soybean meal, bean residue, cottonseed meal, sunflower meal, and Jatropha meal. Thus, our findings suggest that the kinetic parameters of in vitro fermentation were affected as a function of the amount of incubated sample.


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. 589-589
Author(s):  
Kate R. Pawloski ◽  
Tracy-Ann Moo ◽  
Varadan Sevilimedu ◽  
Jonas A. Nelson ◽  
Paula Garcia ◽  
...  

589 Background: Receipt of chemotherapy is associated with decreased postoperative breast satisfaction, but whether timing as neoadjuvant (NAC) versus adjuvant (AC) affects this outcome after breast conservation therapy (BCT) and mastectomy with immediate reconstruction (M-IR) is unclear. Methods: We retrospectively identified patients treated with chemotherapy and breast surgery (BCT and M-IR), from 1/2017-12/2019, who completed ≥ 1 BREAST-Q survey through 12/2020. Mean (standard deviation [SD]) Q-scores for satisfaction with breasts (SATBR) were compared between NAC versus AC groups in BCT and M-IR cohorts, respectively. Higher Q-scores on a 0-100 scale indicate superior satisfaction. A minimum 4-point difference was considered clinically important. Chemotherapy timing and significant covariates on univariate analyses were entered in multivariable linear regressions of 1- and 2-year SABTR. Results: 640 patients had BCT and 602 had M-IR; 210 (33%) BCT patients and 294 (49%) M-IR patients had NAC. Compared with M-IR, SATBR was higher after BCT in both NAC and AC groups, at all postoperative timepoints (Table). Following BCT, SABTR was highest in both NAC and AC groups at 6 months and returned to baseline in the NAC group by year 3. In the M-IR cohort, 331 (55%) patients had radiation and 120 (20%) had complications requiring re-operation or hospitalization. Compared with baseline, mean (SD) Q-scores were substantially lower at 6 months but improved to near baseline at 3 years in both NAC and AC groups. On multivariable analysis, radiation was associated with decreased SABTR at 1 year (Beta, -11; 95% CI, -17, -5.0; p<0.001) and 2 years (Beta, -12; 95% CI, -19, -5.5; p<0.001), as were complications at 1 year (Beta, -6.1; 95% CI, -12, -0.34; p=0.038) but not 2 years (Beta, -5.5; 95% CI, -12, 0.92; p=0.09). After multivariable adjustment, NAC was not significantly associated with 1- or 2-year SABTR after M-IR or BCT. Conclusions: SABTR was higher in BCT compared with M-IR cohorts, independent of chemotherapy timing. Following BCT, SABTR was lower in the NAC group at years 2-3 but remained at baseline or higher at all timepoints. In the M-IR cohort, both groups endorsed lower than baseline SABTR in years 0-2 but returned to near baseline at 3 years. Radiation and complications were independent predictors of decreased SABTR, but our findings suggest that patients who experience complications after M-IR can expect return to baseline breast satisfaction by 2 years.[Table: see text]


1986 ◽  
Vol 66 (1) ◽  
pp. 85-95 ◽  
Author(s):  
J. D. ERFLE ◽  
F. D. SAUER ◽  
S. MAHADEVAN ◽  
R. M. TEATHER

In two experiments, lactating cows (26 in exp. 1; 32 in exp. 2) were fed an 11.3% crude protein (CP) diet, a 14.7% CP diet containing untreated soybean meal (SBM) or a 14.6% CP diet containing formaldehyde-treated SBM (FSBM), all three fed as a complete blended diet with control corn silage (CCS) (exp. 1); a 12% CP diet, a 13.4% CP diet containing SBM or a 13.3% CP diet containing FSBM, all fed as a complete blended diet with urea-treated corn silage (UCS) (exp. 2). In both experiments concentrates and CCS or UCS were mixed (50:50 dry matter) daily and fed ad lib for a 16-wk period. The increase of CP over the low CP negative control by addition of untreated SBM resulted in a significant (P < 0.05) increase in milk production in both experiments. The addition of FSBM had no significant effect. When comparing solids-corrected milk (SCM), addition of SBM, whether treated or not, significantly increased SCM in both experiments. In neither experiment did FSBM improve milk production over untreated SBM. All animals fed CCS lost body weight but there was no difference between treatments. For animals fed UCS the low CP group lost significantly (P < 0.05) more body weight than did the group fed FSBM. Dry matter (DM) intake was significantly (P < 0.05) lower for the FSBM fed group than for the group fed untreated SBM in exp. 1 (CCS). DM intake was significantly (P < 0.05) increased by either FSBM or SBM over the low CP control fed UCS. Milk protein was the only component significantly (P < 0.05) decreased by FSBM in exp. 1. Isobutyric and isovaleric acids were significantly (P < 0.05) lower in rumen fluid of animals on FSBM plus CCS. Rumen microbial protein content seemed to be more adversely affected by FSBM with CCS than UCS. Amino acid content of FSBM and SBM demonstrated that lysine and tyrosine were lost from SBM after treatment with formaldehyde. The lack of a response in milk production to FSBM is discussed in terms of a lysine and tyrosine deficiency for milk protein synthesis and the adverse effect that formaldehyde protection of SBM may have on the rumen microbial population. Key words: Lactation, dairy cows, urea, corn silage, soybean meal, formaldehyde treatment


Animals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2354
Author(s):  
Eduardo Cardoso-Gutiérrez ◽  
Alondra Cristel Narváez-López ◽  
Lizbeth E. Robles-Jiménez ◽  
Andrés Morales Osorio ◽  
María de Guadalupe Gutierrez-Martinez ◽  
...  

This study determined production performance, nutrient digestibility, and milk composition of dairy ewes supplemented with crushed sunflower seeds (Helianthus annuus) and sunflower seed silage in corn silage-based diets. Six ewes were grouped in a double 3 × 3 Latin square design with three periods of 21 days. All treatments were based on ad libitum corn silage. Control diet was based on alfalfa hay (333 g/kg DM), sorghum grain (253 g/kg DM), triticale grain (200 g/kg DM), soybean meal (167 g /kg DM), and vitamin and mineral premix (47 g/kg DM). Sunflower seeds (SF) and sunflower seed silage (SFS) treatments consisted of alfalfa hay (333 g/kg DM), sorghum grain (267 g/kg DM), triticale grain (100 g/kg DM), soybean meal (167 g /kg DM), SF or SFS (87 g/kg DM) and vitamin and mineral premix (47 g/kg DM). Compared to control, SF and SFS increased intake and digestibility of fiber components, such as neutral detergent fiber (NDF) and acid detergent fiber (ADF). Body weight, nitrogen balance, milk yield, milk fat yield, milk protein yield, lactose yield and milk urea N were similar between treatments. Overall, results demonstrated that crushed sunflower seeds and ensiled seeds do not change significantly productive parameters of dairy sheep.


2019 ◽  
Vol 71 (3) ◽  
pp. 1037-1046
Author(s):  
M.F. Miguel ◽  
R. Delagarde ◽  
H.M.N. Ribeiro-Filho

ABSTRACT Corn silage supplementation for dairy cows grazing in temperate annual pastures has rarely been investigated. The aim of this study is to compare two supplementation levels (0 and 4kg dry matter [DM]/day of a 7:1 mixture of corn silage and soybean meal) in dairy cows strip-grazing annual ryegrass (Lolium multiflorum Lam.) at two pasture allowances (PA, low= 25 and high = 40kg DM/d at ground level). The study was carried out according to an incomplete 4 × 3 Latin square design, using 12 cows and three experimental periods of 12 days. The green leaves allowances were only 4.9 and 8.5kg DM/d at the low and high PA, respectively. The total DM intake and milk production increased in supplemented cows compared to un-supplemented cows at the low PA, but were similar between supplementation levels at the high PA. The PI was unaffected by the PA, whereas the substitution rate was 0.68 in cows at the low PA and 1.35 in cows at the high PA. Corn silage supplementation may improve the total DM intake and milk production of dairy cows grazing in temperate annual pastures, but only at a low PA.


1991 ◽  
Vol 71 (4) ◽  
pp. 1265-1268 ◽  
Author(s):  
M. de S. Dayrell ◽  
M. Ivan ◽  
M. Hidiroglou

Fauna-free and faunated Canadian Arcott rams (21 and 23, respectively) were fed a corn silage diet supplemented with soybean meal for 110 d. Ruminal protozoa had no effect (P > 0.05) on plasma selenium concentrations but decreased the selenium concentration in the kidney cortex (P < 0.01), liver (P < 0.05), and spleen (P < 0.01). Key words: Sheep, selenium, Protozoa


1970 ◽  
Vol 53 (1) ◽  
pp. 60-68
Author(s):  
A W Neff ◽  
C C Miller ◽  
A R Barbiers

Abstract Eighteen laboratories collaboratively studied a method for the assay of neomycin, involving six levels of fortification and four diverse types of feed. The average recovery was 95.5%, which included a feed high in soybean meal (65%) that resulted in a definite negative bias in recovery. After eliminating the results from this feed the average recovery became 100.3% with an estimated standard deviation of 15.2% for a random sample. It is recommended that the method be adopted as official first action.


Sign in / Sign up

Export Citation Format

Share Document