scholarly journals Untreated and formaldehyde-treated urea as nitrogen sources for young growing bulls

1982 ◽  
Vol 54 (1) ◽  
pp. 53-62
Author(s):  
Jouko Setälä ◽  
Liisa Syrjälä-Qvist ◽  
Pentti Aspila
Keyword(s):  
Transition Period ◽  
Plasma Concentrations ◽  
Nitrogen Sources ◽  
Feed Utilization ◽  
Test Period ◽  
Barley Straw ◽  
Total Proteins ◽  
Plasma Urea ◽  
Beet Pulp ◽  
Daily Gain

Untreated urea and urea treated with 1.5 % formaldehyde were compared as nitrogen sources for young growing bulls. The experiment was performed with 12 individually fed animals, eight of which were Friesians and four Finnish Ayrshires, and the average age of the animals at the beginning of the experiment was about 3.5 months. After a standardization period of two weeks, the animals were divided into two groups with similar distributions by daily gain, feed utilization, liveweight and age. During the following transition period of one week the feeding of the animals was changed to the experimental diets of the 24-week test period. The feeding was based on NaOH-treated barley straw and a mixture of barley, oats and molassed beet pulp, and planned for a daily gain of 1000 grams/animal. During the standardization period the animals received 2.9 % untreated urea in the concentrate, and soybean meal was also used to bring the feeding into agreement with the standards chosen. During the test period the animals received untreated or treated urea and their contributed about 35—40 % of their DCP requirements. There were no significant differences between the groups in daily gain, feed utilization or slaughter results. Nor did the two groups show any significant differences in plasma urea, albumin and total proteins. The plasma concentrations of aspartate aminotransferase, alanine amino transferase and creatinine did not differ significantly between the groups.

Temporal response of plasma metabolites to ractopamine treatment in the growing pig

1994 ◽  
Vol 45 (8) ◽  
pp. 1683 ◽  
Author(s):  
FR Dunshea ◽  
RH King
Keyword(s):  
Plasma Concentrations ◽  
Treatment Withdrawal ◽  
Feed Consumption ◽  
Plasma Metabolites ◽  
Urea Nitrogen ◽  
Plasma Urea ◽  
Protein Deposition ◽  
Growing Pig ◽  
Normal Increase ◽  
Daily Gain

Eight crossbred gilts (73 kg liveweight) were surgically prepared with indwelling venous catheters to examine the temporal pattern of circulating metabolites and hormones during dietary ractopamine (RAC, 0 or 20 mg kg-1) treatment for 24 days. Pigs were bled every 2 h for 24 h on days 1, 2, 8, 22 of treatment and again 5 days after withdrawal of RAC. Dietary RAC increased liveweight daily gain and decreased feed consumption : liveweight gain by 37 and 25%, respectively. There were no differences in growth performance between the two groups of pigs during the week after withdrawal of RAC. Dietary RAC had no acute or chronic effects upon plasma concentrations of non-esterified fatty acids (NEFA) or glucose. Likewise, plasma NEFA and glucose were not different during the withdrawal period. Plasma urea nitrogen began to decrease after 24 h of dietary RAC treatment, and remained lower than for the controls for the duration of RAC treatment. Withdrawal of RAC caused a marked increase (21%) in plasma urea nitrogen. Dietary RAC decreased plasma insulin and negated the normal increase with age in plasma IGF-I. These metabolic data are consistent with increased protein deposition with little change in fat deposition during dietary RAC treatment.

scholarly journals A polyol mixture or molasses treated beet pulp in the silage based diet of dairy cows: I. The effect on the feed utilization, milk yield and blood values

1977 ◽  
Vol 49 (5) ◽  
pp. 315-329
Author(s):  
Mikko Tuori ◽  
Esko Poutiainen
Keyword(s):  
Milk Yield ◽  
Ketone Bodies ◽  
Feed Utilization ◽  
Control Group ◽  
Control Groups ◽  
Plasma Parameters ◽  
Plasma Urea ◽  
Beet Pulp ◽  
Concentrate Mixture ◽  
Comparison Period

This study investigated the effect of a polyol mixture or molasses treated beet pulp on the feed utilization, milk yield and blood values. 24 cows were divided into 3 groups. Hay was given at 2 kg/d, silage ad lib. and concentrate mixture at 78 kg according to the milk yield. The control group had grain (barley-oat) concentrate mixture, the molasses group had grain supplemented with 29 % dried molasses beet pulp and for the polyol group grain was supplemented with 25 % dried beet pulp treated with mixture of sugar alcohols. A 2 weeks standardisation period was followed by 12 of comparison. 12 of the cows were also in a digestibility trial in the later part of the comparison period. Feed intake was heavily reduced in the molasses group and hence the milk yield was significantly lower (P < 0,05) than in the polyol or control groups (19,5, 21,2 and 21,2 kg FCM/d). The mean consumption of polyols was 483 g/d and that of sugars from the molasses beet pulp was 410 g/d. The feed utilization was significantly lower (P < 0,05) in the control group than in the polyol or molasses groups. The consumptions of f.f.u./kg FCM were correspondingly 0,407, 0,375 and 0,373. Digestibility of nitrogen free extracts was significantly higher for the polyol group than for the control group (81,4 and 78,1 %). For molasses group digestibility of NFE was 78,5 %. Digestibility of OM was correspondingly 76,2, 73,6 and 74,3. Rumen butyric acid formation was higher in the polyol group than in the molasses or control groups, although the differences were not statistically sinificant. The blood and plasma parameters studied were haemoglobin, PVC, ketone bodies in blood, glucose, total protein, urea-N and uric acid in plasma. Plasma urea-N was higher (P < 0,01) in the control than the polyol or molasses groups. In glucose or ketone bodies concentration there were no treatment induced differences.

Effects of dietary carbohydrate composition on rumen fermentation, plasma hormones and metabolites in growing-fattening bulls

1990 ◽  
Vol 50 (3) ◽  
pp. 409-416 ◽  
Author(s):  
C. van Eenaeme ◽  
L. Istasse ◽  
A. Gabriel ◽  
A. Clinquart ◽  
G. Maghuin-Rogister ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Extreme Values ◽  
Plasma Concentrations ◽  
Amino Nitrogen ◽  
Sugar Beet Pulp ◽  
Dietary Carbohydrate ◽  
Carbohydrate Composition ◽  
Plasma Urea ◽  
Beet Pulp ◽  
Plasma Hormones

ABSTRACTTwo groups of six bulls were offered a fattening diet based on barley or sugar-beet pulp in the proportions of either 500: 200 g/kg or 200: 500 g/kg to compare the effects of starch and degradable fibre on rumen fermentations, plasma hormones and metabolites. The bulls were fed twice daily at 08.00 and 16.00 h.The large proportion of sugar-beet pulp in the diet induced higher levels of acetic and butyric acids and less propionic acid than the high proportion of barley. The diurnal patterns over a 24-h period of rumen pH, volatile fatty acids, glucose and ammonia were characterized by two cycles. Sugar-beet pulp in large proportions induced more even fermentations as indicated by flatter curves with less extreme values than those produced by a large inclusion of barley in the diet. Ammonia concentration was high before feeding and decreased subsequently during 4 to 6 h after the meal.No typical patterns were observed in plasma concentrations of glucose and alpha-amino nitrogen. Plasma urea concentration rose 2h after feeding and dropped during the following 6 to 8 h. There were no effects of dietary carbohydrate composition on growth hormone concentration but plasma insulin was significantly reduced with the diet high in sugar-beet pulp. Furthermore, the insulin profile showed peaks after each meal with the barley diet but only after the afternoon feeding with the diet high in sugar-beet pulp.

scholarly journals Wood molasses as a preservative for high moisture barley: 3. Feeding value for growing cattle

1984 ◽  
Vol 56 (4) ◽  
pp. 275-282
Author(s):  
Pekka Huhtanen
Keyword(s):  
Plasma Concentrations ◽  
Rapeseed Meal ◽  
Feed Conversion ◽  
Plasma Urea ◽  
Period 2 ◽  
Growing Cattle ◽  
Average Proportion ◽  
Feeding Value ◽  
Feed Conversion Rate ◽  
Daily Gain

In two experiments the feeding value for growing cattle of barley ensiled with wood molasses (55 % DM) was compared with dried barley (DB) and barley ensiled with AIV II solution (AIVB). Wood molasses was applied at levels of 8 (WMB8) or 16% (WMB16) of barley DM in Exp. 1 and 12 % (WMB12) of barley DM in Exp. 2. The AIV II solution was used at a level of 0.3 % v/w. In Exp. 1 DB and WMB8 were compared during period 1 and DB and WMB16 during period 2. AIVB and WMB12 were compared In Exp. 2. Experiment 1 was performed with 12 and Exp. 2 with 16 animals of Ayrshire and Friesian breed. The average ages of the animals at the beginning of the experiment were 126 and 100 days. The first period in Exp. 1 lasted 45 days and the second 53 days. Experiment 2 lasted 140 days. The feeding was based on barley, soybean meal and hay in Exp. 1 and on barley, rapeseed meal and grass silage in Exp. 2 and daily gain of 1200g/d was targeted. The average proportion of barley of total DM intake averaged 61 % during period 1 and 59 % during period 2 of Exp. 1 and 54 % in Exp. 2. The corresponding proportions of forage of DM intake were 27, 32 and 37 %. The average daily gains of 1107 and 1178g for DB and WMB8, 1182 and 1129 g for DB and WMB16 and 1248 and 1251 g for AIVB and WMB12 were not significantly different. Nor did the groups show any significant differences in feed conversion rate, carcass characteristics and rumen fermentation except the lower (P < 0.05) dressing percentage of the WMB16 group in Exp. 1. Plasma urea N was higher (P < 0.01) and cholesterol lower (P < 0.01) in the AIVB group than in the WMB12 group. Plasma concentrations of glucose, alanine aminotransferase, asparte aminotransferase and creatinine did not differ significantly in the different groups.

scholarly journals 268 Administering an appeasing substance to optimize welfare and performance of receiving cattle

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 193-193
Author(s):  
Eduardo Colombo ◽  
Reinaldo F Cooke ◽  
Alice Brandão ◽  
Jacob Wiegand ◽  
Kelsey Schubach ◽  
...  
Keyword(s):  
Feed Intake ◽  
Feed Efficiency ◽  
Treatment Effects ◽  
Average Daily Gain ◽  
Plasma Concentrations ◽  
Feedlot Cattle ◽  
Skin Area ◽  
And Performance ◽  
Antimicrobial Treatments ◽  
Daily Gain

Abstract This experiment evaluated the impacts of bovine appeasing substance (BAS) administration on performance, health, and physiological responses of feedlot cattle during a 45-d receiving period. A total of 342 recently-weaned Angus-influenced steers, originating from 16 cow-calf operations, were obtained from an auction yard on d -1 and road-transported (12 h) to the feedlot. Upon arrival on d 0, body weight (BW) was recorded and steers were ranked by BW and source and assigned to receive BAS (Nutricorp, Araras, SP, Brazil; n = 171) or placebo (diethylene glycol monoethyl ether; CON; n = 171). Treatments (5 mL) were topically applied to the nuchal skin area of each animal. Within treatment, calves were allocated to 1 of 24 drylot pens (12 pens/treatment) and received a free choice total-mixed ration from d 1 to 45. Calves were assessed for bovine respiratory disease (BRD) signs and feed intake was recorded from each pen daily. Steer BW was again recorded on d 1, 7, 17, 31, and 45, whereas blood samples were collected from 5 steers/pen concurrently with each BW assessment. Average daily gain was greater (P = 0.05) in BAS vs. CON calves, although final BW did not differ (P = 0.36) between treatments. No treatment effects were detected for feed intake (P = 0.95), resulting in greater (P = 0.05) feed efficiency in BAS vs. CON steers. No treatment effects were detected (P ≥ 0.37) for plasma concentrations of haptoglobin, whereas plasma cortisol concentrations were greater (P = 0.05) in CON vs. BAS steers on d 7 (treatment × day; P = 0.07). Incidence of BRD was greater (P ≤ 0.05) in BAS vs. CON on d 6 to 10 and d 18 to 21 (treatment × day; P &lt; 0.01), although overall BRD incidence did not differ (P = 0.24) between treatments. The number of antimicrobial treatments required per steer diagnosed with BRD symptoms to recover from sickness was greater (P = 0.04) in CON vs. BAS calves. No treatment differences were detected (P ≥ 0.41) for mortality incidence, or proportion of steers removed from the experiment due to extreme sickness. Results from this experiment indicate BAS administration upon feedlot entry improved average daily gain by enhancing feed efficiency. Administration of BAS facilitated earlier detection of BRD and reduced the need for antimicrobial treatments. Collectively, these results suggest BAS administration as a promising strategy to benefit performance and immunocompetence of feedlot receiving cattle.

scholarly journals PSII-2 Beef steers with divergent average daily gain have altered plasma amine/phenol-metabolome

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 399-399
Author(s):  
Ibukun M Ogunade
Keyword(s):  
Isotope Labeling ◽  
Average Daily Gain ◽  
Plasma Concentrations ◽  
Plasma Metabolites ◽  
Free Access ◽  
Beef Steers ◽  
Amino Acid Residues ◽  
Branched Chain ◽  
Chemical Groups ◽  
Daily Gain

Abstract This study applied a chemical isotope labeling/liquid chromatography mass spectrometry-based metabolomics technique to determine differences in plasma metabolites containing amine/phenol and carbonyl chemical groups in beef steers with divergent average daily gain (ADG). Thirty-eight Angus crossbred beef steers (21 d post-weaning; 210 ± 12 kg of BW) from a single source were housed in individual slatted floor pens and were fed the same total mixed ration (CP = 14.5% and NEg = 1.10 Mcal/kg) ad libitum for 42 d with free access to water. After 42 days of feeding, the steers were divided into two groups of lowest ADG (LF: n = 8) and highest (HF: n = 8) ADG. Blood samples were taken from both LF and HF steers and were immediately centrifuged to harvest the plasma. The average daily DM intake of the steers in LF and HF were 6.08 kg ± 0.57 and 6.04 kg ± 0.42, respectively, and was similar between the two groups (P = 0.72). The ADG of LF (0.99 kg ± 0.23) was lower (P = 0.01) than that of HF (1.63 kg ± 0.20). A total number of 42 carbonyl-containing metabolites and 229 amine/phenol-containing metabolites were identified in the plasma samples of both groups. No alteration in carbonyl-metabolome was detected. Ten metabolites including 4,6-dihydroxyquinoline, prolyl-valine, prolyl-leucine, prolyl-isoleucine, L-formylkynurenine, pyrocatechol, and histidine were greater in HF steers whereas 8 metabolites including arginine, phenylalanine, guanidoacetic acid, and aspartyl-threonine were greater in LF steers. This study demonstrated that beef steers with divergent ADG had altered plasma amine/phenol metabolome. Notably, plasma concentrations of dipeptides containing branched chain amino acid residues (prolyl-valine, prolyl-leucine, prolyl-isoleucine) and metabolites with anti-inflammatory and reactive oxygen-scavenging properties (4,6-dihydroxyquinoline and L-formylkynurenine) were greater in steers with high ADG.

Corn or soybean hull incorporation into haylage-based backgrounding beef cattle diets: Effect on growth and efficiency during the backgrounding and finishing periods

2007 ◽  
Vol 87 (4) ◽  
pp. 615-621 ◽  
Author(s):  
K. C. Swanson ◽  
M. Ko ◽  
C. J. Mader
Keyword(s):  
Body Weight ◽  
Beef Cattle ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Soybean Hulls ◽  
Feedlot Performance ◽  
Final Body Weight ◽  
Plasma Urea ◽  
Soybean Hull ◽  
Daily Gain

This experiment was conducted to evaluate the effects of corn or soybean hull incorporation into haylage-based diets on backgrounding calf performance and subsequent feedlot performance. Crossbred steers [n = 48, initial body weight (BW) = 303 ± 3.4 kg] were individually fed dietary treatments consisting of: (1) haylage [17.5% crude protein, dry matter (DM) basis; control], (2) haylage + 20% (DM basis) cracked corn, and (3) haylage + 20% (DM basis) soybean hulls during a 112-d backgrounding period. After the backgrounding period, all steers were adapted to a common high moisture corn-based finishing diet and fed until an ultrasound estimated backfat thickness of 7 mm was obtained. During the backgrounding period, steers fed cracked corn or soybean hulls had greater (P < 0.01) average daily gain, dry matter intake and gain:feed and lower (P = 0.05) plasma urea N as compared with controls. However, when finished on a common high-concentrate diet, steers previously fed cracked corn had greater (P < 0.08) average daily gain, final body weight, and longissimus muscle area than those fed soybean hulls, suggesting that source of supplemental energy during the backgrounding period may influence subsequent feedlot performance. Key words: Beef cattle, backgrounding, energy supplementation

Standardized ileal digestible tryptophan and lysine for 15–30 kg gilts

2020 ◽  
pp. 1-8
Author(s):  
T. J. Pasquetti ◽  
L. A. C. Esteves ◽  
V. R. C. de Paula ◽  
L. P. Bonagúrio ◽  
W. Tanamati ◽  
...  
Keyword(s):  
Response Surface ◽  
Average Daily Gain ◽  
Basal Diet ◽  
Surface Model ◽  
Plasma Urea ◽  
Linear Effect ◽  
Treatment Performance ◽  
Low Levels ◽  
Daily Gain ◽  
Blood Variables

Abstract It was aimed to simultaneously study standardized ileal digestible (SID) tryptophan (Trp) and lysine (Lys) for gilts. A digestibility assay was previously conducted to determine the SID amino acid in the basal diet (low levels of SID Trp and Lys). Sixty-four gilts (15.04 ± 1.44 kg) were allotted to 16 diets in a 4 × 4 factorial arrangement (1.55, 1.85, 2.15 and 2.45 g/kg SID Trp and 9.72, 11.12, 12.52 and 13.92 g/kg SID Lys) with four replicates per treatment. Performance, longissimus muscle (LM), backfat thickness (BF) and blood variables were evaluated. An interaction was observed for G:F, and by response surface model, the optimum Trp level was achieved at 2.15 g/kg (0.159 g/MJ of ME). A quadratic effect of Trp was observed on body weight (BW) and average daily gain (ADG); the daily feed intake increased linearly as Trp increased. The optimum Trp levels of 2.25 and 2.24 g/kg were estimated for BW and ADG, respectively. The BF increased with increasing levels of Trp. There was a quadratic and linear effect of Trp and Lys, respectively, on the LM, in which the optimum Trp level was determined as 2.05 g/kg in the diet. Plasma urea nitrogen decreased as Trp and Lys levels increased. Using estimates provided by response surface, maximized G:F ratio was obtained at 2.15 g SID Trp/kg of diet and at least 13.92 g SID Lys/kg of diet is necessary to optimize the G:F for 15–30 kg gilts, providing a Trp:Lys ratio of 15.4:100.

Different modes of food restriction and compensatory growth in double-muscled Belgian Blue bulls: plasma metabolites and hormones

2003 ◽  
Vol 77 (2) ◽  
pp. 205-214 ◽  
Author(s):  
J.F. Cabaraux ◽  
M. Kerrour ◽  
C. van Eenaeme ◽  
I. Dufrasne ◽  
L. Istasse ◽  
...  
Keyword(s):  
Food Restriction ◽  
Compensatory Growth ◽  
Amino Nitrogen ◽  
Plasma Metabolites ◽  
Plasma Urea ◽  
Blood Samples ◽  
Restriction Diet ◽  
Beet Pulp ◽  
Plasma Gh ◽  
Maintenance Ration

AbstractThe effects of different sequences of food restriction and fattening have been studied on plasma metabolites and hormones in double-muscled Belgian Blue bulls. Twenty animals were divided into five groups. The first group (control, CG) was given,ad libitum, a fattening diet based on sugar-beet pulp. In G2 and G3, fattening was interrupted after 103 and 187 days, respectively, by a period of food restriction lasting about 2 months during which the animals received a maintenance ration. They were finished with the same diet as CG. The last two groups, G4 and G5, received a limited amount of the restriction diet to support 0·5 and 0 kg gain per day, respectively, for 4 months, before being fattened as CG. Plasma glucose, alpha-amino nitrogen, non-esterified fatty acids, urea, creatinine, thyroxine (T4), 3, 3’, 5’-tri-iodothyroxine (T3), and insulin-like growth factor-1 (IGF-1) were measured in blood samples taken every 2 weeks. Plasma GH and insulin profiles were measured in serial blood samples obtained at three different times during growth. Animals that showed compensatory growth had lower plasma urea, associated with high levels of T3, T4 and IGF–1. Animals from G2 and G3 failed to show compensatory growth. In Belgian Blue bulls, compensatory growth is markedly affected when food restriction is severe or fattening interrupted.

Plasma leptin concentration in pre- and post-weaning lambs

2003 ◽  
Vol 76 (2) ◽  
pp. 221-227 ◽  
Author(s):  
T. Tokuda ◽  
C. Delavaud ◽  
Y. Chilliard
Keyword(s):  
Plasma Concentrations ◽  
Metabolizable Energy ◽  
Blood Samples ◽  
Ruminant Species ◽  
Bean Meal ◽  
Radio Immunoassay ◽  
Metabolizable Energy Intake ◽  
Soya Bean Meal ◽  
Plasma Leptin ◽  
Daily Gain

AbstractLeptin has an important rôle in the control of appetite and energy expenditure. Several studies have reported the effects of leptin in ruminants. However, little is known about changes in circulating leptin concentrations in neonates of ruminant species, or the effects of weaning on plasma leptin concentrations. The main objectives of this experiment were: to examine plasma leptin concentrations in lambs, in the period from just after birth through to weaning; to examine the effect of weaning on plasma leptin concentrations, and to compare leptin concentrations measured using a ‘multi-species’ leptin radio-immunoassay (RIA) kit and a specific ovine RIA in lambs during the 6-month period after weaning. In a previous paper, we reported leptin concentrations using a commercial RIA during the post-weaning period. However, we were not able to measure plasma leptin concentrations from just after birth to weaning as they were apparently below the level of sensitivity of the assay. In the present study, five crossbred lambs were removed from their dams within 2 days after birth, and bottle-fed on milk replacer at a level sufficient to meet a 1•2 times maintenance metabolizable energy intake. Lambs were weaned 45 days after birth, and housed individually in pens. The lambs were offered timothy hay, rolled barley and soya-bean meal to meet a 200 g daily gain during the post-weaning period. During the pre-weaning period, blood samples were collected within 5 h of birth and thereafter at 09:00 h; every day from 2 to 6 days of age; at 2-day intervals from 6 to 14 days of age; and at 3-day intervals from 14 to 45 days of age. During the post-weaning period, blood samples were collected before and 3 and 6 h after the morning meal at the ages of 0•5, 1, 2, 3, 4, 5 and 6 months. Plasma leptin concentrations slightly increased (P < 0•05) just after birth and then remained constant until 45 days old (P > 0•05). Additionally, plasma leptin concentration was not significantly changed following weaning. During the post-weaning period, plasma leptin concentrations were compared using two RIA systems. The correlation between plasma leptin concentrations measured by the ‘multi-species’ leptin RIA kit and specific ovine RIA was poor (r = 0•41). These findings are consistent with other reports and suggest that the ‘multi-species’ leptin RIA kit is not suitable for estimating leptin plasma concentrations in ruminants.

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