Effects of supplementation strategies for beef cattle in tropical grassland conditions

This study was realized to evaluate the dry matter intake, nutrient digestibilities, and animal performance of crossbred steers grazing Brachiaria brizantha cv. Marandu, during the rainy season. Thirty-three crossbred steers with an average weight of 203.5 ± 39.5 kg were distributed in a completely randomized design with three treatments and eleven replications. The results were analyzed using an ANOVA and a Tukey test with a 5% probability of error. The three experimental diets were: MSA – mineral salt ad libitum; MSU - mineral salt + urea ad libitum and PSU - protein supplementation (0.1% of body weight). The dry matter intake of forage and total dry matter intake were similar (P > 0.05) among treatments. The dry matter, organic matter, neutral detergent fiber, crude protein, ether extract, non-fibrous carbohydrates and total carbohydrates digestibilitities coefficients were influenced (P < 0.05) by treatments. The final body weight, average daily gain, and feed efficiency were similar (P > 0.05) among treatments. The supplementation strategies used during the rainy season resulted in a similar performance; therefore, the strategy adopted could be chosen according to the economical and regional conditions of the production.

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Intake, digestibility and performance of lambs fed with diets containing cassava peels

Ciência e Agrotecnologia ◽

10.1590/s1413-70542014000300010 ◽

2014 ◽

Vol 38 (3) ◽

pp. 295-302 ◽

Cited By ~ 5

Author(s):

Gilmara Santos Guimarães ◽

Fabiano Ferreira da Silva ◽

Luciano Lemos da Silva ◽

Luísa Miranda Girardi Galvão ◽

Lenon Machado dos Santos ◽

...

Keyword(s):

Body Weight ◽

Dry Matter ◽

Average Daily Gain ◽

Neutral Detergent Fiber ◽

Dry Matter Intake ◽

Feed Conversion ◽

Final Body Weight ◽

Linear Effect ◽

And Performance ◽

Cassava Peel

Sheep farming is designated to economic exploitation, and dry matter intake is the most important factor that influences the performance of animal, thus seeking alternative foods. This study aimed to evaluate the effects of inclusion levels of cassava peel on intake, digestibility and performance of feedlot lambs. We used 32 crossbred lambs Santa Inês uncastrated, mean body weight of 21 ± 1.5 kg. Treatments were arranged in a randomized design to animals, with inclusion levels of cassava peel (0, 10, 20, 30%) in the diet dry matter and forage cassava leaf hay. During 70 days, there have been weighing the food provided, leftovers, and animals, and feces collection. The intake of dry matter (DMI), organic matter (OMI), crude protein (CPI), ether extract (EEI), neutral detergent fiber corrected for ash and protein (NDIap), total carbohydrates (CTI), non-fiber carbohydrates (NFCI), total digestible nutrients (TDNI), as well as DMI and NDFap/kgCP, DMI and NDFIap/PC0.75 levels have not been affected by the inclusion of cassava peel. Similar results for DM digestibility, NDF, CP, MO, CT and the TDN. DEE had a growing linear effect whereas DNFC presented a quadratic effect. Average daily gain (ADG), feed conversion (FC), initial body weight (BWinitial), final body weight (BWfinal), warm carcass weight (WCW) and warm carcass yield (WCR) showed no changes. It is concluded that the peel cassava may be included in diet until 30%, without change dry matter intake and animal performance.

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Performance and behavior of dairy calves fed diets containing milk and citric flavor agents

Ciência e Agrotecnologia ◽

10.1590/s1413-70542007000300041 ◽

2007 ◽

Vol 31 (3) ◽

pp. 889-895 ◽

Cited By ~ 6

Author(s):

Silvane Barcelos Carlotto ◽

Clair Jorge Olivo ◽

Julio Viégas ◽

David Arthur Stiles ◽

Alexandre Mossate Gabbi ◽

...

Keyword(s):

Animal Behavior ◽

Dry Matter ◽

Block Design ◽

Dairy Calves ◽

Dry Matter Intake ◽

Average Weight ◽

Feed Conversion ◽

Final Body Weight ◽

Holstein Breed ◽

Abdominal Perimeter

While young ruminants prefer milk aroma and researches about this theme are being developed, the use of citric aroma, very appetized for older ruminants, are low utilized to young animals. This work aims to compare the influence of milk and citric flavor agents on the diets of nursing dairy calves. In this trial, 12 animals of Holstein breed were distributed in a randomized block design with four treatments (concentrate without flavor agent, concentrate with milk flavor or citrus flavor, and concentrate with milk plus citrus flavor agent) and three repetitions. The parameters evaluated were: concentrate dry matter intake (CDMI), hay dry matter (HDMI), milk dry matter intake (MDMI) and total dry matter intake (TDMI), average weight gain (ADWG), feed conversion (FC), initial (IBW) and final body weight (FBW), initial thoracic perimeter (ITP) and final thoracic perimeter (FTP), initial abdominal perimeter (IAP) and final abdominal perimeter (FAP), initial withers height (IWH) and final withers height (FWH) and animal behavior. The CDMI, HDMI and TDMI, as well as IBW, FBW, ITP, FTP, IAP, FAP, IWH and FWH did not show differences (P>0.05). The averages daily gain and feed conversion showed no differences, with means of 0.55 kg/animal and 2.09, respectively. The diets did not affect animal behavior parameters (P>0.05).

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PSXIV-17 Effects of corn bran plus solubles and corn oil on growth performance and carcass traits of finishing bulls

Journal of Animal Science ◽

10.1093/jas/skz258.864 ◽

2019 ◽

Vol 97 (Supplement_3) ◽

pp. 436-437

Author(s):

Arquimedes Lima Junior ◽

Murillo A Meschiatti ◽

Vinicius N Gouvêa ◽

Victor Dantas ◽

Daniel Silva Antonelo ◽

...

Keyword(s):

Body Weight ◽

Growth Performance ◽

Feed Efficiency ◽

Dry Matter ◽

Corn Oil ◽

Average Daily Gain ◽

Carcass Traits ◽

Dry Matter Intake ◽

Final Body Weight ◽

Finishing Diets

Abstract The objective of this study was to evaluate the growth performance and carcass traits of finishing bulls fed diets containing, on dietary dry matter basis, different levels of corn wet distillers bran plus solubles (WDBS; 0, 15, 30 or 45%) added with or without corn oil (CO; 0 and 3%). A total of 205 Nellore bulls (390 ± 25 kg initial BW) were blocked by initial body weight, distributed in 40 pens and pens within weight block were randomly assigned to treatments in a 2 × 4 factorial arrangement. Diets were isonitrogenous and contained 8.5% sugarcane bagasse and 91.5% concentrate (ground corn, soybean meal, pelleted citrus pulp, urea, mineral). The WDBS (FlexyDDG®) and the corn oil were from SJC Bioenergia (Quirinópolis, Goiás, Brazil). Data were analyzed using the PROC MIXED procedure of SAS. An interaction between CO × WDBS levels was observed for dry matter intake (DMI; P = 0.032). In diets without CO, increasing levels of WDBS linearly (P = 0.004) reduced the DMI, but in diets containing 3% CO, increasing levels of WDBS quadraticaly affected the DMI (P = 0.002). No effects of CO, WDBSF levels or CO × WDBS levels were observed for final body weight, average daily gain, hot carcass weight and dressing percentage. Feed efficiency tended (P = 0.07) to be greater for bulls fed diets containing CO (0.154 vs. 0.144). Increasing levels of WDBS tended (P = 0.09) to increase the feed efficiency. In summary, increasing levels of WDBS in finishing diets linearly (in diets without CO) or quadratically (in diets with CO) reduces the dry matter intake. Adding CO and WDBS tend to increase feed efficiency.

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Effect of Cow Nutrition in the Far-off Period on Colostrum Quality and Immune Response of Calves

Bulletin of the Veterinary Institute in Pulawy ◽

10.2478/v10213-012-0043-z ◽

2012 ◽

Vol 56 (2) ◽

pp. 241-246

Author(s):

Włodzimierz Nowak ◽

Robert Mikuła ◽

Małgorzata Kasprowicz-Potocka ◽

Marta Ignatowicz ◽

Andrzej Zachwieja ◽

...

Keyword(s):

Immune Response ◽

Body Weight ◽

Dry Matter ◽

Maternal Diet ◽

Dry Matter Intake ◽

Black And White ◽

Holstein Friesian ◽

Ad Libitum ◽

Dietary Treatments

Abstract The aim of the study was to determine the effect of the limitation of energy intake by restrictive dry matter intake in the faroff part (from -56 d to -22 d) of dry period on the colostrum quality and the calf immunological status. Thirty-eight Polish Holstein- Friesian Black and White multiparous cows and their calves were randomly allotted to one of the two dietary treatments in the far-off period. In group ADLIB, diet was offered ad libitum (2.0% body weight), while in group REST, dry matter intake was restricted to 1.5% of body weight. Lowered feed intake in the far-off period did not have a statistically significant influence on the quality of colostrum. On the 3rd d of calves’ life, serum concentrations of immunoglobulins, albumins, globulins, total protein, and IGF-1 were not affected by treatments of dam in the far-off period. The concentrations of total Ig and G and A immunoglobulins of 21-day-old calves from cows fed ad libitum during the far-off period was found to be significantly lower compared to REST group. No significant differences in birth weight and growth rate during the first 21 d of life were found. Limiting maternal diet in far-off period did not affect negatively colostrum quality and calves` immune response during early stages of their life.

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Long- and short-term effects on intake of pelleting a roughage for sheep

Animal Science ◽

10.1017/s0003356100022595 ◽

1974 ◽

Vol 19 (1) ◽

pp. 77-86 ◽

Cited By ~ 21

Author(s):

J. F. D. Greenhalgh ◽

G. W. Reid

Keyword(s):

Body Weight ◽

Dry Matter ◽

Dry Matter Intake ◽

Short Term ◽

05 C ◽

Digestive Organs ◽

Dry Matter Digestibility ◽

Ad Libitum ◽

Chopped Grass

SUMMARY1. Four groups of eight castrated male lambs, weighing initially about 37 kg, were fed ad libitum for 18 weeks on: C, chopped dried grass throughout; P, pelleted grass throughout; C/P (or P/C), the two forms alternated every 3 weeks; or C + P, both forms on offer.2. Daily dry-matter intake (g/kg W0·75) was 58·2 for treatment C and 814 for treatment P; thus the long-term difference in intake was 40%. However, in the alternated sheep, dry-matter intake was 53·6 g/kg W0·75 for chopped grass and 86·5 g for pelleted; this short-term difference (61%) was significantly greater than the long-term difference. Dry-matter intake for treatment C+P was 84·9 g/kg W0·75; after the first week, chopped grass comprised only 10% of this. Dry-matter digestibility coefficients (%) were: C, 740; P, 61·4 and C+P, 62·0.3. The sheep were killed in week 19 and the dimensions of digestive organs and their contents were adjusted to an animal of 50 kg empty body weight. The weight of the reticulo-rumen was greater for C (1·30 kg) than for P (0·94) or C+ P (1·05), C/P and P/C being inter-mediate (1·15). The water-filled volume of the rumen was proportional to weight, except that C/P (alternated sheep finishing on pelleted grass) had low volumes. Reticulo-rumen fill was greater for C (7·28 kg) than for P (3·97) or C+ P (4·53), P/C (5·90) and C/P (4·34) being intermediate. There were no other significant differences in organs or contents.4. Gains in empty-body weight (g/day) were: C, 112; P, 181; C/P and P/C, 126; C + P, 195.

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Digestive parameters during gestation of Holstein heifers

10.1101/2020.04.20.050773 ◽

2020 ◽

Author(s):

Jéssica Marcela Vieira Pereira ◽

Marcos Inácio Marcondes ◽

Sebastião de Campos Valadares Filho ◽

Joel Caton ◽

Anna Luiza Lacerda Sguizzato ◽

...

Keyword(s):

Fatty Acids ◽

Body Weight ◽

Organic Matter ◽

Crude Protein ◽

Dry Matter ◽

Average Daily Gain ◽

Repeated Measurements ◽

Neutral Detergent Fiber ◽

Dry Matter Intake ◽

Esterified Fatty Acids

AbstractOur objective was to estimate nutrient intake, ruminal flow, total apparent and ruminal digestibility, rates of passage and digestion, ruminal and omasal pH, blood metabolite concentrations, and body measurements during gestation of Holstein heifers. Eleven pregnant Holstein heifers, 8 of which fitted with a rumen cannula (450 ± 27.6 kg of body weight and 20 ± 3.5 months of initial age) were used. All heifers received the same diet composed of corn silage, soybean meal, corn meal, minerals and vitamins, with a corn silage:concentrate ratio of 50:50 (on a dry matter basis), aiming an average daily gain of approximately 1.0 kg. The sampling periods were established according to the days of gestation: 145, 200, and 255 with a duration of 10 days per period. Total fecal samples were collected to estimate dry matter, organic matter, crude protein, and neutral detergent fiber digestibility. Blood samples were collected to analyze metabolites (non-esterified fatty acids, β-hydroxybutyrate, urea, and glucose). Data were analyzed as a repeated measurements scheme, using MIXED procedure, with differences declared when P < 0.05. Dry matter intake expressed in kg/day increased from d-145 to d-200, and remaining stable until d-255 of gestation. The same results were observed for organic matter and crude protein intake, increasing 15.0 and 35.8% respectively. In contrast, when dry matter intake was evaluated as % body weight, we observed a decrease of 16.7% from d-200 to d-255. Days of gestation did not influence ruminal flow of dry matter, organic matter, crude protein, and neutral detergent fiber. We observed an increase in the ruminal digestibility of neutral detergent fiber by 20.5%. The apparent total-tract digestibility of dry matter, organic matter, and crude protein changed over days of gestation, with an increase of 11.9, 8.5, and 9.8%, respectively, when comparing d-145 with d-200. The rate of digestion of neutral detergent fiber increased from 2.0 to 3.5% h-1. Glucose levels decreased, while β-hydroxybutirate and non-esterified fatty acids increased from d-145 to d-255. In conclusion, our results demonstrate a reduction in dry matter intake in % body weight due to pregnancy. It also shows an increase in total apparent digestibility through gestation, which imply a greater efficiency of use of nutrients by pregnant animals. Thus, further research is still needed to consolidate such results and to elucidate the mechanism about nutrient usage during the final third of gestation in heifers.

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Predicting dry matter intake using conceptual models for cattle kept under tropical and subtropical conditions1

Journal of Animal Science ◽

10.1093/jas/skz226 ◽

2019 ◽

Vol 97 (9) ◽

pp. 3727-3740 ◽

Cited By ~ 1

Author(s):

Christian A Bateki ◽

Uta Dickhoefer

Keyword(s):

Body Weight ◽

Dry Matter ◽

Metabolizable Energy ◽

Neutral Detergent Fiber ◽

Dry Matter Intake ◽

Energy Requirements ◽

Modified Model ◽

Tropical Conditions ◽

The Mean ◽

Cattle Systems

Abstract Using empirical models to predict voluntary dry matter intake (VDMI) of cattle across production systems in the (Sub-)Tropics often yields VDMI estimates with low adequacy (i.e., accuracy and precision). Thus, we investigated whether semimechanistic conceptual mathematical models (CMM) developed for cattle in temperate areas could be adopted and adjusted to adequately predict VDMI of stall-fed cattle in the (Sub-)Tropics. The CMM of Conrad et al. (1964) (C1) and Mertens (1987) (M1) were identified and adopted for their simplicity in reflecting physicophysiological VDMI regulation. Both CMM use 2 equations that estimate the physiologically and physically regulated VDMI and retain the lower VDMI prediction as actual VDMI. Furthermore, C1 was modified by increasing the daily average fecal dry matter output from 0.0107 to 0.0116 kg/kg body weight, yielding the modified model C2. For M1, the daily neutral detergent fiber intake capacity was increased from 0.012 to 0.0135 kg/kg body weight and the daily metabolizable energy requirements for maintenance from 0.419 to 0.631 MJ/kg0.75 body weight, whereas the metabolizable energy requirements for gain was reduced from 32.5 to 24.3 MJ/kg body weight gain, yielding the modified model M2. Last, also the mean of the physically and physiologically regulated VDMI rather than the lower of both estimates was retained as actual VDMI to generate the models C3 (from C1), C4 (from C2), M3 (from M1), and M4 (from M2). The 8 CMM were then evaluated using a data set summarizing results from 52 studies conducted under (sub)tropical conditions. The mean bias, root mean square error of prediction (RMSEP) and concordance correlation coefficient (CCC) were used to evaluate adequacy and robustness of all CMM. The M4, C2, and C1 were the most adequate CMM [i.e., lowest mean biases (0.07, −0.22, and 0.14 kg/animal and day, respectively), RMSEP (1.62, 1.93, and 2.0 kg/animal and day, respectively), and CCC (0.91, 0.86, and 0.85, respectively)] and robust of the 8 CMM. Hence, CMM can adequately predict VDMI across diverse stall-fed cattle systems in the (Sub-)Tropics. Adjusting CMM to reflect the differences in feed quality and animal physiology under typical husbandry conditions in the (Sub-)Tropics and those in temperate areas improves the adequacy of their VDMI predictions.

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Performance and carcass traits of goat kids fed high-concentrate diets containing citrus pulp or soybean hulls

Ciência Rural ◽

10.1590/0103-8478cr20150450 ◽

2016 ◽

Vol 46 (4) ◽

pp. 707-712 ◽

Cited By ~ 2

Author(s):

Daniel Montanher Polizel ◽

Luiz Guilherme Mezzena Gobato ◽

Rodrigo Araújo de Souza ◽

Renato Shinkai Gentil ◽

Evandro Maia Ferreira ◽

...

Keyword(s):

Body Weight ◽

Dry Matter ◽

Subcutaneous Fat ◽

Dry Matter Intake ◽

Partial Replacement ◽

Soybean Hulls ◽

Final Body Weight ◽

Slaughter Weight ◽

Citrus Pulp ◽

Ground Corn

ABSTRACT: The objective in this trial was to determine the effects of partial replacement of ground corn by citrus pulp or soybean hulls on performance and carcass characteristics of feedlot goat kids. Twenty one Boer x Saanen kids (initial BW 15.8 ± 0.7kg), nine males and 12 females, were distributed in a complete randomized block design, according to sex and initial body weight. Treatments were set by replacing 50% of ground corn (DM basis) for citrus pulp or soybean hulls; whereas, forage concentrate ratio was of 10:90. Partial replacement of corn by citrus pulp or soybean hulls increased dry matter intake, average daily gain and final body weight, but feed efficiency was not affected. There was no difference between citrus pulp or soybean hulls. Inclusion of coproducts increased slaughter weight, hot and cold carcass weight and longissimus muscle area, with no difference between citrus pulp and soybean hulls. Subcutaneous fat thickness, hot and cold carcass yields, shrink after chilling and body wall thickness were not affected by treatments. Citrus pulp and soybean hulls can replace 50% of ground corn (DM basis) increasing dry matter intake and weight gain in goat kids enabling higher slaughter weight at earlier age.

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Comportamento ingestivo de novilhas Nelore em pastejo no período seco suplementadas com sal mineral e tipos de ureia

Semina Ciências Agrárias ◽

10.5433/1679-0359.2018v39n5p2195 ◽

2018 ◽

Vol 39 (5) ◽

pp. 2195

Author(s):

Aléx Schio Resende ◽

Fabiano Ferreira da Silva ◽

Evely Giovanna Leite Costa ◽

Robério Rodrigues Silva ◽

Dicastro Dias de Souza ◽

...

Keyword(s):

Body Weight ◽

Dry Matter ◽

Slow Release ◽

Neutral Detergent Fiber ◽

Mineral Salt ◽

Dry Period ◽

Brachiaria Brizantha ◽

Randomized Design ◽

Completely Randomized Design ◽

Slow Release Urea

In this study, the feeding behavior of Nellore heifers receiving supplements containing mineral salt, conventional urea and slow release urea during the grazing stage at Brachiaria brizantha-based pastures during the dry period of the year was evaluated. Fifty-six heifers with approximately 284.72 ± 27.48 kg of body weight were used, distributed in a completely randomized design with four different treatment types: mineral salt; Urea - supplementation with 8.18% conventional urea; Mixed urea - supplementation with 4.09% conventional urea and 4.39% slow release urea and slow urea - supplementation with 8.78% slow release urea. Animals supplemented with mineral salt had longer grazing times compared to those supplemented with mixed urea, slow urea and regular urea. The dry matter intake, neutral detergent fiber and total digestible nutrients presented a similar effect, with higher values for heifers consuming supplements containing regular urea and slow urea compared to those of mixed urea. However, when the efficiency of hourly intake was evaluated, the animals that received urea supplement were more efficient in relation to the other treatments. The number of grazing periods for heifers receiving slow urea supplementation was higher compared to heifers receiving salt and mixed urea. The duration of grazing and rumination periods was longer for heifers receiving salt supplementation and mixed urea than those receiving regular urea and slow urea. It is recommended to use supplements at the level of 0.3% of body weight for heifers receiving conventional urea.

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Efficacy of sheep as a digestibility model for cattle when fed concentrate-based or forage-based diets

Translational Animal Science ◽

10.1093/tas/txz092 ◽

2019 ◽

Vol 3 (4) ◽

pp. 1106-1111

Author(s):

Ghazanfar A Chishti ◽

Pedro H V Carvalho ◽

Ana Carolina Pinto ◽

Flavia A S Silva ◽

Tara L Felix

Keyword(s):

Body Weight ◽

Organic Matter ◽

Dry Matter ◽

Random Effect ◽

Neutral Detergent Fiber ◽

Starch Digestibility ◽

Dry Matter Intake ◽

Acid Detergent Fiber ◽

Cattle Feeding ◽

Acceptable Model

AbstractThe objectives were to determine the efficacy of sheep as a digestibility model for cattle feeding two diets, forage or concentrate based, under current genetics. Twelve Suffolk wethers were blocked into two periods with six wethers in each period. Within each period, wethers were fed a forage-based diet (n = 3) or a concentrate-based diet (n = 3). Six angus steers were also fed a forage-based diet (n = 3) or a concentrate-based diets (n = 3) in switchback design with two periods. All animals were adapted to diets for a minimum of 3 wk, then feed intake, refusals, and feces were collected. Feed and fecal dry matter (DM), organic matter (OM), neutral detergent fiber (NDF), acid detergent fiber (ADF), and starch were analyzed. Refusals were analyzed for DM. Data were analyzed using Proc Mixed in SAS with diet and species as fixed and period as a random effect. Dry matter intake as percentage of body weight for each animal within each period was used as a covariable. There was an interaction (P < 0.01) between species and diet for DM and OM digestibility. When fed the concentrate-based diet, DM and OM digestibility were similar between wethers and steers (P > 0.18); however, when fed the forage-based diet, DM and OM digestibility was less (P < 0.01) for wethers than steers. Like DM and OM, an interaction (P < 0.05) between species and diet was present for starch digestibility. When fed the forage-based diet, starch digestibility did not differ (P = 0.66) between wethers and steers; however, when fed concentrate-based diet, wethers had a greater starch digestibility (P < 0.05) than steers. There was no interaction (P > 0.45) between species and diet for NDF and ADF digestibility. Regardless of the diet fed, NDF and ADF digestibilities were greater (P < 0.05) in steers than wethers. Present day sheep were not a good model for cattle when fed forage-based diets, but sheep were an acceptable model for cattle when fed concentrate-based diets.

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