bluuebunny/crossref_metadata_2025_split huggingface dataset:
PSXII-31 Severity of hay processing on dry matter intake, sorting behaviour, and apparent total tract digestibility in lambs
Authors: Kelln Liam 
Published: December 2019

Abstract
The objective was to evaluate digestibility and sorting behaviour of grass hay processed to differing severities. Thirty-six wether lambs were used in a completely randomized design and fed diets consisting of grass hay (82.2 %), whole barley (15.7 %), and a mineral-vitamin supplement (2.1 %). Treatments included: unprocessed hay (CON); shredded hay (SHRED); chopped hay (CHOP); and ground hay (GRIND). Lambs were fed their respective diet for 20 d followed by 4 d for measurement of feed intake and fecal output. Lambs fed CON (1.23 kg and 3.24 %) had greater DMI (P = 0.04 and 0.05) compared to CHOP (1.04 kg and 2.71 % BW), with SHRED (1.17 kg and 3.11 % BW) and GRIND (1.13 kg and 2.97 % BW) being intermediate. Undigestible NDF intake tended to decrease as processing severity increased (P = 0.05). Dry matter digestibility (67.6, 66.2, 59.6, and 60.8 % for CON, SHRED, CHOP, and GRIND, respectively; P &lt; 0.01) generally decreased as the severity of forage processing increased. Crude protein digestibility was greatest in CON (68.6 %) compared to SHRED (60.83 %), CHOP (58.7 %), and GRIND (58.5 %; P &lt; 0.01). ADF and aNDFom digestibilities were greater for CON (57.4 and 67.2 %) and SHRED (60.0 and 67.9 %) compared to CHOP (44.8 and 54.6 %) and GRIND (48.3 and 58.5 %; P &lt; 0.001). CON and SHRED lambs sorted for larger particle sizes (particles &gt; 19 mm and 8 to 19 mm; P &lt; 0.001 and 0.025, respectively) while CHOP and GRIND lambs sorted for smaller particles (particles 4 to 8 mm and particles &lt; 4 mm; P &lt; 0.001 and 0.003, respectively). These results indicate that processing of grass hay does not increase nutrient digestibility partly because of the sorting behaviour of lambs.
PSXII-14 Fiber content in diets for feedlot lambs: performance
Authors: Ferreira Evandro M , Eckermann Nathalia R , Biava Janaina S , Comelli Jamile , Sturion Thamires U , Polizel Daniel M , Oliveira Gabriela B , Barroso José P R , Sardinha Lairana A , Souza Terezinha T de , Assis Rhaissa Garcia de , Pires Alexandre Vaz 
Published: December 2019

Abstract
High-grain diets have been used with great success in the feedlot systems for lambs production in Brazil. Then it became important to define the ideal dietary fiber content in the diet when the goal is to produce heavy lambs for early slaughter. The objective in this trial was to evaluate the levels of fiber on performance of lambs feed high-grain diet. Fifty-eight Dorper x Santa Inês ram lambs (initial BW 20.7 ± 1.19 kg and 75 ± 10.83 d old) were assigned to a randomized complete block design. The treatments were defined by the fiber (“Coastcross” hay) content in diets (CP: 16,12% ± 0.92): 0F: no forage diet (NDF: 10.4%); 5F: 5% of forage (NDF: 12.1%); 10F: 10% of forage (NDF: 15%); 15F: 15% of forage (NDF: 15.5%); 20F: 20% of forage (NDF: 20.8%) and 25F: 25% of forage (NDF: 23.5%). The experiment lasted 89 days and lambs were weighted after 16 hours fasting on days 0, 31, 57 and 89. DMI, ADG and FE were determined in each period. There was no interaction effect between diets and periods. There was a quadratic effect in DMI (0F: 0.96; 5F: 0.97; 10F: 1.04; 15F: 1.00; 20F: 1.02; 25F: 0.88 kg/d; P = 0.02), ADG (0F: 0.27; 5F: 0.26; 10F: 0.28; 15F: 0.28; 20F: 0.26; 25F: 0.21 kg/d; P = 0.01) and FE (0F: 0.28; 5F: 0.28; 10F: 0.28; 15F: 0.29; 20F: 0.26; 25F: 0.25; P = 0.05). Consequently, the increased levels of forage result in quadratic effect on final BW (0F: 44.5; 5F: 44.7; 10F: 46.1; 15F: 45.5; 20F: 43.9; 25F: 39.7 kg; P &lt; 0.01). In conclusion, the inclusion of 10–15% of forage improves the performance of feedlot lambs feed high-concentrate diets, but it was proved the real possibility of finishing lambs with diet without forage source.
PSXIV-35 Evaluation of a direct fed microbial in newly received, high-risk beef calves and the subsequent impact on performance and health
Authors: Herring Ellen , Ball Jase , Kegley Elizabeth , Turner James , Palmer Elizabeth , Hornsby J A , Reynolds Jana , Shoulders Benjamin , Powell Jeremy 
Published: December 2019

Abstract
Crossbred beef calves [n = 240, body weight (BW) = 257 ± 3.5 kg] were obtained on 3 dates (block, 8 pens/block) and were assigned randomly to 1 of 2 treatments: 1) CON = top-dress supplement (0.11 kg/d) with no direct-fed microbial, 2) BOV = top dress supplement (0.11 kg/d) that provided 113.5 mg/d of a direct-fed microbial (BOVAMINE DEFEND®, 2 g/d, Lactobacillus animalis, Propionibacterium freudenreichii, 1 × 109 CFU2/g). Study objective was to determine the effect of BOV on growth performance and health when included in the diet. From d 0 to 14, ADG was improved (P = 0.05) for BOV compared to CON as ADG were 0.89 and 0.74 kg, respectively. Overall ADG over the 43-d receiving period was not different (P = 0.65); numerically there was a 0.03 kg improvement in BOV (0.90) compared to CON (0.87 kg). The percentage of calves treated for clinical BRD with the first treatment antibiotic (florfenicol) was not affected (P = 0.40); however, was numerically reduced by 6.8% for BOV (61.2% morbidity) compared to CON (68.0% morbidity). There was a trend for the percentage of calves treated with a second antibiotic (enrofloxacin) to be reduced (P = 0.17) for calves supplemented with BOV (9.1%) compared to CON (15.2%). There was also a trend for the mean total number of antibiotics used to be reduced (P = 0.16) in BOV compared to CON. Overall antibiotic cost, was not affected (P = 0.23) by BOV supplementation; however, numerically there was a $3.27 reduction in antibiotic cost for BOV compared to CON. The supplementation of BOV in high-risk calves may improve growth performance and health, reduce clinical BRD in calves after first treatment and could potentially reduce the use of antibiotics in calves at a high risk for BRD during the receiving period.
PSXIV-37 Assessment of milk yield, milk composition and urea nitrogen in milk and plasma in lactating buffaloes fed diets with increasing levels of corn plus urea
Authors: Júnior Valdi Lima , Melo Tobias Tobit De Barros , Santos Viviany Lúcia Fernandes Dos , Bezerra Leilson R , Ferreira Marcelo Andrade , Parente Michelle , Menezes Migson Santos , Silva Luana Andressa Da Costa 
Published: December 2019

Abstract
Nowadays, the great challenge in the milk activity is to replace the high cost ingredients without affect the performance and milk composition. So, the objective of this study was to evaluate the effects of replacement of soybean meal by corn plus urea on milk production, milk composition, nitrogen in milk (UNM) and plasma (UNP) concentrations of lactation buffaloes. Twelve Murrah lactating buffaloes, all multiparous (100 days in lactation; average milk production of 10 kg per day), with initial mean body weight of 650 ± 45 kg were used used in a triple Latin square 4 x 4 experiment. Each period included 13 d for adaptation and 5 for milk collect. The samples of plasma were obtained only in the last day of collect, four hours after feed. The experimental diets (12% CP, DM basis) consisted of increasing levels (0, 33, 66 and 100%) of soybean meal replacement by corn plus urea and the forage: concentrate ratio was 60:40. Orthogonal polynomials for diet responses were determined by linear and quadratic effects (P &lt; 0.05). The increasing levels of corn plus urea did not change (P &gt; 0.05) the milk production (averaging 6.4±0.33 kg/d), fat content (averaging 7.4±0.31%) and protein content averaging (3.8±0.07%) in milk. The UNM (15.29, 15.44, 14.80 and 16.02 mg dL-1 for levels 0, 33, 66 and 100% respectively) and UNP values (18.37, 17.20, 18.79 and 18.16 mg dL-1, for levels 0, 33, 66 and 100% respectively) also did not change with experimental diets and are according with references values for buffaloes. The use of corn plus urea is an alternative for lactating buffaloes’ diets and can be replacing soybean meal at levels up to 100%.
PSXIV-36 Effect of corn variety and amylase enzyme on cattle performance and carcass characteristics
Authors: Casagrande Renan Regatieri , Engle Terry , Wagner John 
Published: December 2019

Abstract
Four hundred and thirty-three Angus and Angus cross-bred steers (Body Weight 344 ± 13.3 kg) were utilized in this experiment to compare different varieties of grain corn and α-amylase enzyme on feedlot cattle performance and carcass characteristics. Steers were blocked by body weight and breed and randomly assigned to treatments. Treatments consisted of: 1) Commercial commodity corn (CON); 2) Experimental test corn (TEST;), 3) 50:50 blend of CON and TEST corn sources (BLEND), and 4) CON with 5g of α-amylase enzyme added/hd/d (AMZ; Amaize®, Alltech). Steers were slaughtered after 138 days on feed. Feedlot performance, net energy recovery, hot carcass weight, dressing percentage, subcutaneous adipose tissue depth, longissimus muscle area, marbling score, and calculated yield grade data were analyzed as a randomized complete block design using PROC MIXED of SAS. Dietary treatment had no effect (P &gt; 0.20) on BW, average daily gain, feed efficiency, or net energy recoveries. There was a tendency for daily dry matter intake (DMI) to be influenced by treatment: d 0 – d 90 (P &lt; 0.09), d 91 – slaughter (P = 0.11), and d 0 – slaughter (P &lt; 0.08). Dry matter intake was consistently greater for steers receiving the AMZ treatment when compared to all other treatments. Daily DMI for the TEST treatment was consistently lower than DMI for all other treatments. Hot carcass weight (P = 0.56), dressing percentage (P = 0.10), 12th subcutaneous fat depth (P = 0.88), longissimus muscle area (P = 0.84), yield grade (P = 0.91), marbling score (P = 0.76), quality grade (P = 0.67), and the distribution of USDA yield and quality grades (P &gt; 0.74) were similar across treatments. These results indicate the value of the TEST corn as an energy source in feedlot cattle diets is similar to the value of COM corn an energy source.
PSXIV-17 Effects of corn bran plus solubles and corn oil on growth performance and carcass traits of finishing bulls
Authors: Junior Arquimedes Lima , Meschiatti Murillo A , Gouvêa Vinicius N , Dantas Victor , Antonelo Daniel Silva , Escobar Raíssa , Barbosa Gabriel , Mendonça João Paulo , Silva Mathews , MacDonald James , Santos Flavio 
Published: December 2019

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.
PSXIV-41 Warm-season annual or perennial hay fed to growing beef steers with or without dried distillers grains supplementation: ruminal fermentation characteristics, digestion, and feeding behavior
Authors: Sugg Joel D , Hoffmann Carly A , Kondratovich Lucas B 
Published: December 2019

Abstract
The effects of hay type and protein supplementation on intake, feeding behavior, nutrient digestion, and ruminal digestion characteristics were evaluated. Ruminally cannulated Angus beef steers (n = 6; BW = 304 kg ± 11 kg) were randomly assigned within a sequence of treatments using a 4 × 6 unbalanced Latin square design (6 steers; and 4 diets; fed once-daily). A 2 x 2 factorial treatment arrangement was used as follows: 1) ‘WW-B. Dahl’ Old World bluestem [Bothriochloa bladhii (Retz) S.T. Blake; WWBD or Eragrostis tef (Zucc.) Trotter; TEFF); and 2) dried distillers grain (DDGS) at 0 or 0.5% BW. Each period consisted of a 14-d of adaptation and 7-d collection. Steers were observed (5-min intervals, 24 h) for behavioral assessment; while ruminal pH was continuously measured (wireless pH probe), and ruminal fluid collected at 0, 2, 4, 8, and 16 h after-feeding. Steers fed TEFF hay and those fed DDGS (both, P = 0.04) had greater DMI compared to WWBD and not supplemented. Chewing activity did not differ (P ≥ 0.54). Non-supplemented steers spent more time eating hay (P &lt; 0.01) than supplemented steers. Average ruminal pH of TEFF (6.32) was lower (P &gt; 0.01) than WWBD (6.56). Non-supplemented steers produced less in vitro total gas and methane (both, P = 0.02) per g rumen fluid DM. The VFA profile was not affected (P ≥ 0.45) by treatments. Apparent total-tract digestibility and ruminal degradation (P ≤ 0.01) were greater with TEFF fed steers than WWBD. Hemicellulose digestion was reduced by 6.95% (P = 0.03) with DDGS supplementation. An annual hay in place of a conventional perennial hay improved intake, ruminal digestion of nutrients, without affecting feeding behavior, while supplementation with DDGS reduced forage intake time and quantity, without negatively affecting ruminal fiber digestion.
PSXIV-11 Supplementation of 25-hydroxy-vitamin-D3 and increased vitamin E as a strategy to increase carcass weight of feedlot beef cattle
Authors: Carvalho Victor V , Perdigão Alexandre 
Published: December 2019

Abstract
Our objective was to evaluate the effects of supplementing 1mg of 25-OH vitamin D3 (HyD®) and increased vitamin E amount (2000 mg/animal/d) on cattleˈ performance and carcass characteristics when fed a 90-d feedlot finishing diet. A total of 140 Nellore bulls (IBW = 387 ± 28 kg) were distributed in 14 pens (10 animals/pen) in a randomized complete block design (7 pens per treatment). The basal diet was composed by 15% sugarcane bagasse, 72.8% ground corn, 7.6% soybean meal and 4.6 % mineral-vitamin premix (DM basis). The dietary treatments were: 1) Control: No addition of 25-hydroxy-vitamin-D3 (HyD®) and basal Vit. E amount (520 mg/animal per day); 2) HyD+Vit.E: Addition of 1 mg of HyD® plus increased Vit. E amount (2000 mg/animal per day). The animals were fed once daily and had free access to fresh water. Statistical analysis was performed using the MIXED procedure of SAS 9.4. Means comparison was evaluated by tukey test and declared significant at P &lt; 0.05, and tendencies considered when 0.05 &lt; P &lt; 0.10. There was no difference on final body weight (~522.8 kg, P = 0.11), ADG (~1.54 kg/d, P = 0.17), DM intake (~9.9 kg/d, P = 0.41) and G:F (~0.156, P = 0.28) between treatments. Likewise, no differences were observed (P &gt; 0.10) for dressing (~53.5%), REA (~65.5 cm²) and SFT (~4.10 mm). However, feeding HyD+Vit.E tended to increase (P = 0.07) carcass average daily gain (0.993 vs. 0.953 kg/d) and increased (P = 0.04) carcass weight by 4.2 kg compared with control (281.6 vs. 277.4 kg). In conclusion, the combination of HyD and increased vitamin E increases carcass production in feedlot cattle.
PSXIV-12 Effect of the addition of canola oil on digestibility, rumen fermentation and methane emissions in beef cattle in the Mexican tropic
Authors: Aviles-Nieto Jonathan , Marquez-Mota Claudia , Romero-Pérez Atmir , Talamantes-Gómez José , Castillo-Gallegos Epigmenio , Jarillo Jesus , Corona Luis 
Published: December 2019

Abstract
An experiment was performed to evaluate the effect of canola oil (CO) supplementation at 4 inclusion rates [CO0=0%, CO2=2%, CO4=4%, and CO6=6% of dry matter intake (DMI)] on digestibility, volatile fat acids (VFA), a mmonia nitrogen (NH3-N), protozoa and methane (CH4) emissions, in cows grazing a tropical grass (Brachiaria sp.). Four cows (Bos taurus × Bos indicus) with rumen cannula (658 ± 92 kg) were randomly assigned to a Latin Square design with 4 treatments and 4 periods (19-d each). Treatments were offered daily at 0600 h and 1500 h together with a commercial concentrate (1% of EBW). Fecal output was measured using an external marker (Cr2O3) dosed once per day for 9 days. Fecal output along with digestibility data were used to estimate DMI. Methane production was monitored twice a day, for 5 consecutive-days, using infrared gas analyzers (Guardian Plus) at the time of CO supplementation. Rumen contents were collected at 0300 h and every 4-h during the last 2-d of each period. Data of digestibility were analyzed as a Latin Square using a mixed model procedure (SAS Inst. Inc., Cary, NC). For ruminal fermentation parameters, collection time was considered a repeated measure. Orthogonal polynomials were performed to evaluate linear and quadratic effects. No effect was observed on fiber digestibility, or any nutrient evaluated with up to 6% CO inclusion. Total protozoa (x104cells/mL), methane emission and acetate molar proportion decreased (P &lt; 0.01) while propionate increased (P &lt; 0.01) with consequent reduction on the acetate:propionate ratio (CO0=3.2, CO2=2.8, CO4=2.6, CO6=2.4; P &lt; 0.01) as the level of CO increased. In conclusion, supplementing CO to animals consuming a tropical forage-based diet, may represent a viable option to reduce CH4 emissions without having a negative effect on the digestibility of the NDF.
PSX-35 The relationship between the survival rate of lambs and the amount of cubs in the litter
Authors: Iolchiev Baylar S , Vetokh Anastasia N , Klenovitsky Pavel M , Volkova Natalia A , Zinovieva Natalia A , Bagirov Vugar A 
Published: December 2019

Abstract
Safety and polycarpous in sheep farming is one of the most important factors determining the economic efficiency of the industry. The increase in the number of lambs in the litter is accompanied by undesirable phenomena, such as weight loss and linear measurements of the fetus and, as a result, this affects their survival. The aim of the research was to study the relationship of the polycarpous of sheep with the safety of lambs. A litter of Romanov breed sheep (n = 28) and their hybrids with argali (n = 57) was studied. For statistical data analysis used SPSS V.15.0. To determine the relationship between the number of lambs in the litter and their safety, contingency tables and the chi-squared test were used. Ewes were inseminated during the breeding season (October – November). The 210 lambs were obtained from 85 ewes. The safety of lambs up to 4 months of age averaged 63%. However, this figure, depending on the number of lambs in the litter, was significantly different. The safety of the lambs from ewes that have been the only ones was 100% before the retention, where there were twins - the safety was 85%. More than 48% of lambs from litter with three cubs were perished in the first months of life. Up to 4 months of age in a litter of 5 lambs survived 33% of those born (n = 5). The numbers of cubs in the litter were affected to the safety of the lambs, which can be argued from the obtained results. This is also evidenced by the obtained difference between the expected and actual mortality rates in litters and the significant chi-squared value. The study was supported by the RSF within Project no.18-16-00079.
PSX-20 Effect of nutritional supplementation upon colostrum quality in goats under rangeland conditions in Northern México
Authors: De Santiago-Miramontes Angeles , Guillén-Muñoz Juan M , Véliz-Deras Francisco G , Contreras-Villarreal Viridiana , Vélez-Monroy Leonardo I , Machado-Ramos María G 
Published: December 2019

Abstract
The aim of this study was to evaluate the effect of pre-partum nutritional supplementation upon colostrum quality in goats managed under extensive grazing conditions (November and December) in northern Mexico (26ºN). Multiparous-pregnant crossbred native goats (n = 43; 130 days of gestation) were randomly divided into 2 groups homogenized by body weight (BW, kg) and body condition score (BCS, units; scale:1 emaciated to 5: obese): GS (nutritionally supplemented group; n = 22 and GC (control group; n = 21). Nutritional Supplementation consisted of chicken manure (40%), wheat bran (27%), sorghum seed (27%), molasses (4%), and salt (2%); totaling 500 g; 18% CP, 2.7 Mcal/kg DM, offered from 22 d pre-partum to 7 d post-partum. Colostrum was collected during the first 24 h postpartum and preserved at 5 °C until analyzed. Response variables were BW, BCS, and fat and lactose percentages. While data were analyzed by ANOVA, mean differences were analyzed with a Student-t test (SYSTAT 10). Results are shown in table 1. To conclude, pre-partum nutritional supplementation only enhanced BCS at parturition and the lactose content, with no effect upon fat percentage in goats managed under semiarid-subtropical rangeland conditions in Northern Mexico (26 ° NL).
PSX-24 Effect of alkali treated palm kernel meal on nutrient digestibility, blood parameters, performance and carcass characteristics by lambs
Authors: Herrera Jazmin H , Velasco Stefano , Vela Diego , Garrido Javier , Ponce Christian H 
Published: December 2019

Abstract
Limited research has been conducted to evaluate alternatives to enhance nutritional value of palm kernel meal (PKM) for ruminants. Therefore, 2 experiments were conducted to evaluate the effects of treating palm kernel meal with calcium hydroxide (CH) on nutrient digestibility, blood parameters, performance and carcass characteristics of growing lambs. In Exp. 1, three lambs were randomly allotted in a 3 × 3 Latin square. Treatment diets include: (1) 0% PKM (Ctrl), (2) 25% PKM (PKM-NT) and (3) 25% PKM (PKM-T) treated with 5% CH. Data were analyzed as a Latin square with 3 dietary treatments and 3 periods using the MIXED procedure of SAS. Nutrient intake was not altered by experimental diet (P &gt; 0.05). Fiber digestibility was decreased by inclusion of PKM (P = 0.043). However, Fiber digestibility was not different between PKM-T and PKM-NT (P = 0.613). Nitrogen free-extract was decreased by PKM-T vs PKM-NT (P = 0.037). Blood parameters evaluated (i.e. triglycerides, cholesterol, urea, total protein, TGO, TGP) were not altered by experimental treatment (P &gt; 0.073). In Exp. 2, 14 lambs (19.3±3.32 kg of BW) were allocated into 1 of 2 experimental diets (PKM-NT or PKM-T) based on their live BW. Animals were fed individually for 93 d. Carcass characteristics were measured at the end of the feeding trial after a 24-h chilling period. Data were analyzed using the Mixed procedures of SAS as a completely randomized block design. Overall, DMI and ADG was increased by PKM-T (P &lt; 0.049). Nevertheless, Feed efficiency was not altered by experimental treatment (P = 0.214). Dressing percent was enhanced by PKM-T (P = 0.036). Remaining carcass characteristics were not altered by experimental diet (P &gt; 0.112). Growing data, suggest that treating PKM with alkali increased its nutritional value based on performance results. However, nutrient digestibilities does not support the benefit from alkali treatment.