Distribution and Excretion of Perfluorooctane Sulfonate (PFOS) in Beef Cattle (Bos taurus)

2014 ◽  
Vol 62 (5) ◽  
pp. 1167-1173 ◽  
Author(s):  
Sara J. Lupton ◽  
Janice K. Huwe ◽  
David J. Smith ◽  
Kerry L. Dearfield ◽  
John J. Johnston
Keyword(s):  
Beef Cattle ◽  
Bos Taurus ◽  
Perfluorooctane Sulfonate

Perfluorooctane Sulfonate Plasma Half-Life Determination and Long-Term Tissue Distribution in Beef Cattle (Bos taurus)

2015 ◽  
Vol 63 (51) ◽  
pp. 10988-10994 ◽  
Author(s):  
Sara J. Lupton ◽  
Kerry L. Dearfield ◽  
John J. Johnston ◽  
Sarah Wagner ◽  
Janice K. Huwe
Keyword(s):  
Beef Cattle ◽  
Tissue Distribution ◽  
Half Life ◽  
Bos Taurus ◽  
Perfluorooctane Sulfonate ◽  
Plasma Half Life

scholarly journals Comparison of Metabolic Network between Muscle and Intramuscular Adipose Tissues in Hanwoo Beef Cattle Using a Systems Biology Approach

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Hyun-Jeong Lee ◽  
Hye-Sun Park ◽  
Woonsu Kim ◽  
Duhak Yoon ◽  
Seongwon Seo
Keyword(s):  
Systems Biology ◽  
Beef Cattle ◽  
Metabolic Regulation ◽  
Bos Taurus ◽  
Adipose Tissues ◽  
Chemokine Signaling ◽  
Gene Network Analysis ◽  
Chemokine Signaling Pathway ◽  
Subcutaneous Adipose

The interrelationship between muscle and adipose tissues plays a major role in determining the quality of carcass traits. The objective of this study was to compare metabolic differences between muscle and intramuscular adipose (IMA) tissues in thelongissimus dorsi(LD) of Hanwoo (Bos taurus coreanae) using the RNA-seq technology and a systems biology approach. The LD sections between the 6th and 7th ribs were removed from nine (each of three cows, steers, and bulls) Hanwoo beef cattle (carcass weight of430.2±40.66 kg) immediately after slaughter. The total mRNA from muscle, IMA, and subcutaneous adipose and omental adipose tissues were isolated and sequenced. The reads that passed quality control were mapped onto the bovine reference genome (build bosTau6), and differentially expressed genes across tissues were identified. The KEGG pathway enrichment tests revealed the opposite direction of metabolic regulation between muscle and IMA. Metabolic gene network analysis clearly indicated that oxidative metabolism was upregulated in muscle and downregulated in IMA. Interestingly, pathways for regulating cell adhesion, structure, and integrity and chemokine signaling pathway were upregulated in IMA and downregulated in muscle. It is thus inferred that IMA may play an important role in the regulation of development and structure of the LD tissues and muscle/adipose communication.

Haematobia irritans parasitism of F1 yak × beef cattle ( Bos grunniens  ×  Bos taurus ) hybrids

2019 ◽  
Vol 33 (4) ◽  
pp. 546-551 ◽  
Author(s):  
C. M. Calkins ◽  
J. D. Scasta ◽  
T. Smith ◽  
M. M. Stayton ◽  
S. L. Lake
Keyword(s):  
Beef Cattle ◽  
Bos Taurus ◽  
Haematobia Irritans ◽  
Bos Grunniens

Effects of physically effective neutral detergent fibre content on dry-matter intake, digestibility and chewing activity in beef cattle fed total mixed ration

2015 ◽  
Vol 55 (2) ◽  
pp. 166 ◽  
Author(s):  
Jae Hyun Park ◽  
Kyoung Hoon Kim ◽  
Pyo Jam Park ◽  
Byong Tae Jeon ◽  
Mi Rae Oh ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Dry Matter ◽  
Bos Taurus ◽  
Mixing Time ◽  
Latin Square ◽  
Eating Rate ◽  
Total Mixed Ration ◽  
Neutral Detergent Fibre ◽  
Significant Difference ◽  
Chewing Activity

Our aim in this study was to determine the effects of physically effective neutral detergent fibre (peNDF) in a total mixed ration (TMR) on feed intake, digestibility and chewing activity in beef cattle. The experiment had a replicated 3 × 3 Latin square desig, using three fattening Hanwoo (Bos taurus coreanae) steers with ruminal cannulas. Steers were offered one of three diets (high, medium or low peNDF content) obtained by mixing the same TMR for different periods of time (5, 13 and 25 min). peNDF content of TMR was calculated as [total chewing time/NDF intake (kg)] × dietary NDF content, and the proportion of sample dry matter (DM) collected in a ≥1.18-mm sieve is commonly used as the physical effectiveness factor in the equation. The peNDF1.18 contents of the high, medium and low diets were 25.97%, 21.10% and 17.94% (P < 0.05). In addition, the proportion of particles collected on the 19-mm, 1.18-mm, and pan sieves changed linearly with an increase of TMR mixing time. Mean particle-size distributions of diets were 11.43, 24.11, 30.70 and 33.68 for 19 mm, 8 mm, 1.18 mm and pan, respectively. Eating rate and ruminating and chewing efficiencies were significantly decreased with reduced peNDF content, and DM intake was increased significantly (P < 0.05). Lower peNDF content reduced the total number of chews significantly (P < 0.05). Total time spent chewing associated with eating was not affected by peNDF contents. Digestibility of DM, crude protein and crude fat decreased with reducing peNDF content in the diet, but there was no significant difference among the three groups. These results indicated that peNDF affects intake, digestibility and chewing activity in beef cattle. Therefore, high levels of peNDF appears to improve TMR, as it can increase efficiency and may prevent ruminal disorders in Hanwoo steer.

scholarly journals Sequence Variations of CCAAT/Enhancer Binding Protein α (C/EBPα) gene encoding meat quality in local and exotic cattle breeds

2020 ◽  
Vol 18 (1) ◽  
pp. 1
Author(s):  
Endang Tri Margawati ◽  
Hajar Indra Wardhana ◽  
Nani Radiastuti ◽  
Slamet Diah Volkandari
Keyword(s):  
Amino Acid ◽  
Beef Cattle ◽  
Meat Quality ◽  
Bos Taurus ◽  
Gene Encoding ◽  
Sequence Variations ◽  
Enhancer Binding Protein ◽  
Simmental Cattle ◽  
Bali Cattle

<p><em>Gene of C/EBPα is a gene associated with lipid composition and distribution, the gene therefore contributes in enhancing of meat quality. There is no information of sequence variations of C/EBPα gene investigation in local and exotic beef cattle in Indonesia. This research was aimed to detect the presence of sequence variations of C/EBPα gene in local beef and exotic cattle. Twelve samples were used in this study such as Bali cattle (2), Ongole grade (2), Pasundan (2), Friesian Holstein (1), Angus (1), Simmental (2), Limousin (1) and Banteng (1). Several steps of the research were DNA extraction and quantification, </em><em>amplification (PCR)</em><em>, electrophoresis, sequencing and sequence analysis of C/EBPα gene. DNA was collected either from blood or hair bulbs.  Determination of homolog bases of C/EBPα gene was based on BLAST result while base sequence variation was analyzed by using MEGA 6. The result showed that all cattle samples were confirmed bearing the C/EBPα gene that amplified along of 1,339 bp. and annealing temperature of 54°C. It was obtained three nucleotide variations at the position of 870 (G→A), 931 (A→G) and 1196 (G→A) only found in Bali cattle and Banteng, but there were no nucleotide variations in the local beef cattle, exotic cattle and the sequence reference of Bos taurus (Japanese Black/Acc No. DQ068270.1; Hanwoo/Acc No. D82984.1; Qinchuan/Acc No. NM_176784.2). Those nucleotide variations caused changing of amino acid of</em><em> Alanine to Threonine at 931 and Asparagine to Serine at 1196</em><em>.</em><em> Mutation at position 271 changed nucleotide Cytosine to Adenine (C271A) that found in PO and Simmental cattle. Further research is needed to confirm the changing of amino acid of </em><em>C/EBPα gene in Bali cattle might affect to meat quality.</em><em></em></p>

scholarly journals 21 Performance of growing beef cattle consuming bahiagrass hay treated with calcium oxide and molasses and supplemented with cottonseed meal

2019 ◽  
Vol 97 (Supplement_1) ◽  
pp. 19-19
Author(s):  
Francine M Ciriaco ◽  
Darren D Henry ◽  
Luara B Canal ◽  
Carla D Sanford ◽  
Gonzalo Barreneche ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Cottonseed Meal ◽  
Calcium Oxide ◽  
Fixed Effects ◽  
Bos Taurus ◽  
Block Design ◽  
Bos Indicus ◽  
Paspalum Notatum ◽  
Experimental Unit ◽  
Feed Withdrawal

Abstract An experiment was conducted to evaluate the effects of bahiagrass (Paspalum notatum) hay treated with calcium oxide (CaO) and molasses, offered ad libitum, on performance of growing beef cattle supplemented with cottonseed meal. Sixty-four growing Bos taurus and Bos indicus influenced heifers (249 ± 26 kg of BW) and steers (249 ± 20 kg of BW) were used in a randomized complete block design. The experiment consisted of a 56 d period in which animals were weighed every 14 d. On d 0, animals were weighed after 16-h water and feed withdrawal, stratified by sex, breed, and BW, and blocked by initial BW. Cattle were then allotted to 16 dormant bahiagrass pastures (1.34 ha each; 4 animals/pasture), which were located in 2 different areas within 0.52 km of each other. Pastures were stratified by location and randomly assigned (n = 8 pastures/treatment) to 1 of 2 treatments: 1) hay treated with 10% molasses (DM basis) + water (to 35% DM; MOL) or 2) hay treated with 5% CaO (DM basis) + 10% molasses (DM basis) + water (to 35% DM; CAO). Cottonseed meal was provided at a rate of 0.3% of cattle BW/d (as fed basis). Data were analyzed using the MIXED procedure of SAS and pasture was the experimental unit. The model included the fixed effects of treatment and sex. Location and block were included as random effects. Initial and final BW were not affected by treatment (P = 0.573, P = 0.453; initial and final BW, respectively) or sex (P = 0.512, P = 0.670; initial and final BW, respectively). Additionally, no effects of treatment (P = 0.767) or sex (P = 0.285) were observed on ADG (average of 0.537 kg). In conclusion, bahiagrass hay treated with molasses alone or in combination with CaO failed to improve performance of growing beef cattle

scholarly journals California net energy system for Bos taurus indicus

2019 ◽  
Vol 3 (3) ◽  
pp. 991-998
Author(s):  
Mario Luiz Chizzotti ◽  
Sebastião de Campos Valadares Filho ◽  
Pedro Del Bianco Benedeti ◽  
Flávia Adriane de Sales Silva
Keyword(s):  
Body Weight ◽  
Beef Cattle ◽  
Bos Taurus ◽  
Energy Requirement ◽  
Energy System ◽  
Energy Requirements ◽  
Net Energy ◽  
Nutrient Requirements ◽  
Crossbred Cattle ◽  
Bos Taurus Indicus

Abstract The California net energy system (CNES) was the reference for the development of most energy requirement systems worldwide, such as Nutrient Requirements of Beef Cattle (NASEM, Nutrient requirements of beef cattle, 8th Revised ed, 2016) and Brazilian Nutrient Requirements of Zebu and Crossbred Cattle (Valadares Filho, S. C., L. F. C. Silva, M. P. Gionbelli, P. P. Rotta, M. I. Marcondes, M. L. Chizzotti, and L. F. Prados, BR-CORTE: nutrient requirements of zebu and crossbred cattle, 3rd ed, 2016). This review aimed to compare methods used by NASEM and BR-CORTE to estimate the energy requirements for beef cattle. The net energy requirements for maintenance (NEm) of BR-CORTE is based on empty body weight (EBW), whereas NASEM uses shrunk body weight (SBW), but the Bos taurus indicus presents 10% to 8% lower NEm than Bos taurus taurus. We have compared animals with different EBW and SBW but with same equivalent empty body weight/standard reference weight ratio (0.75), as both systems have suggested different mature weights. Both systems predicted similar net energy requirements for gain (NEg) for animals with 1.8 kg of daily gain. However, estimated empty body gain was lower for NASEM estimations when the same metabolizable energy for gain is available. For pregnancy and lactation of beef cows, the NEm and net energy requirements for pregnancy (NEp) of a Zebu cow estimated by BR-CORTE were lower than the values estimated by NASEM. Furthermore, the magnitude of differences between these systems regarding NEp increased as pregnancy days increase. The NASEM and BR-CORTE systems have presented similar values for energy requirement for lactation (0.72 and 0.75 Mcal/kg milk, respectively).

Additive, dominance, and epistatic loss effects on preweaning weight gain of crossbred beef cattle from different Bos taurus breeds1

2005 ◽  
Vol 83 (8) ◽  
pp. 1780-1787 ◽  
Author(s):  
V. M. Roso ◽  
F. S. Schenkel ◽  
S. P. Miller ◽  
J. W. Wilton
Keyword(s):  
Weight Gain ◽  
Beef Cattle ◽  
Bos Taurus

scholarly journals Effect of the g.98535683A > G SNP in the CAST gene on meat traits of Nellore beef cattle (Bos indicus) and their crosses with Bos taurus

Meat Science ◽  
2017 ◽  
Vol 123 ◽  
pp. 64-66 ◽  
Author(s):  
Cruz Elena Enriquez-Valencia ◽  
Guilherme Luis Pereira ◽  
Jessica Moraes Malheiros ◽  
Josineudson Augusto I.I. de Vasconcelos Silva ◽  
Lúcia Galvão Albuquerque ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Bos Taurus ◽  
Bos Indicus ◽  
Cast Gene
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