Article
Biochemistry & Molecular Biology
Benedicte Suybeng, Edward Charmley, Christopher P. Gardiner, Bunmi S. Malau-Aduli, Aduli E. O. Malau-Aduli
Summary: The study found that supplementing tropical steers with Desmanthus can improve nitrogen utilization but lead to lower animal growth performance compared to lucerne. This challenges the initial hypothesis that the two supplements would elicit similar results in animal performance. Further research is needed to understand the impact of tannins in Desmanthus on nitrogen utilization.
Article
Multidisciplinary Sciences
Jessica Moraes Malheiros, Banny Silva Barbosa Correia, Caroline Ceribeli, Daniel Rodrigues Cardoso, Luiz Alberto Colnago, Stanislau Bogusz Junior, James Mark Reecy, Gerson Barreto Mourao, Luiz Lehmann Coutinho, Julio Cesar Pascale Palhares, Alexandre Berndt, Luciana Correia de Almeida Regitano
Summary: The study found a close relationship between fecal metabolite profile and ruminal metabolism in Nelore steers, with many common polar metabolites identified in both samples. The rumen had higher concentrations of polar compounds compared to feces, but fecal metabolites still represented ruminal fluid metabolites.
SCIENTIFIC REPORTS
(2021)
Article
Agriculture, Dairy & Animal Science
K. Salazar-Cubillas, U. Dickhoefer
Summary: Advanced methods for estimating dietary crude protein degradation in the rumen have been primarily developed for feeds in temperate climates, with uncertain accuracy and precision in predicting proportions of rumen-undegraded CP in tropical forages. This study assessed the accuracy and precision of predicting in situ RUP proportions from CP fractions for tropical forages, finding that concentrations of CP and fiber fractions, along with ruminal passage rates, were able to predict RUP proportions with high adjust coefficients of determination and low root mean square errors. Specifically developed algorithms showed promise for accurately and precisely predicting RUP proportions in forages commonly used in ruminant feeding in the Tropics and Subtropics.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2021)
Article
Genetics & Heredity
Robert N. Vaughn, Kelli J. Kochan, Aline K. Torres, Min Du, David G. Riley, Clare A. Gill, Andy D. Herring, James O. Sanders, Penny K. Riggs
Summary: The study revealed a relationship between the expression of the ACTN3 gene in skeletal muscle and feed efficiency in crossbred steers. The inefficient group showed higher expression of ACTN3 and a maternal effect was observed in ACTN3 inheritance. Additionally, a significant breed effect was found in other genes related to feed efficiency, suggesting a possible link between muscle fiber type ratio and feed efficiency.
FRONTIERS IN GENETICS
(2022)
Article
Agriculture, Dairy & Animal Science
Tracy L. Scheffler
Summary: This article explores the potential relationship between heat tolerance and muscle metabolism in Bos indicus cattle, and its impact on beef quality. Bos indicus cattle have advantages in hot, humid climates but are known for their excitable temperaments, slower growth, and variability in meat quality characteristics.
Article
Biology
Rogerio Ribeiro Vicentini, Priscila Arrigucci Bernardes, Aska Ujita, Andre Penido Oliveira, Maria Lucia Pereira Lima, Lenira El Faro, Aline Cristina Sant'Anna
Summary: This study aimed to describe the pattern of reticulo-rumen temperature and activity variation in nullipamus Gyr heifers close to calving, and evaluate the predictive potential of these traits. The findings showed a decrease in Trr and an increase in Act in the days preceding calving, with differences more evident in the final hours before calving. Specific variations in thermal physiology of Zebu cattle need to be considered when using prediction devices validated only for European breeds.
JOURNAL OF THERMAL BIOLOGY
(2021)
Article
Agriculture, Dairy & Animal Science
Adam L. Shreck, Joshua M. Zeltwanger, Eric A. Bailey, Jenny S. Jennings, Beverly E. Meyer, Noel Andy Cole
Summary: Protein supplementation can increase intake of low-quality forages and reduce methane emissions from ruminants.
JOURNAL OF ANIMAL SCIENCE
(2021)
Article
Agriculture, Dairy & Animal Science
Hu Liu, Jianwei Zhou, Allan Degen, Hongshan Liu, Xuliang Cao, Lizhuang Hao, Zhanhuan Shang, Tao Ran, Ruijun Long
Summary: In this study, the growth performance and energy requirements of yaks and Qaidam cattle were compared when fed diets with different metabolizable energy levels. The results showed that yaks had higher fiber and energy digestibility, lower energy requirements for maintenance, and greater average daily gain compared to Qaidam cattle. The rumen fermentation parameters and serum metabolites also differed between the two species, revealing the advantages of yaks in terms of energy utilization and adaptation to the harsh conditions.
Article
Agriculture, Dairy & Animal Science
M. L. Drewery, J. E. Sawyer, T. A. Wickersham
Summary: PEAR, a co-product of algal biofuel production, has the potential to be incorporated as a protein supplement in cattle diets. Experimental results indicate that PEAR can be blended with existing ingredients, such as CSM and DDG, up to 60% to create suitable protein supplements for grazing beef cattle.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2021)
Article
Agriculture, Dairy & Animal Science
Rakesh Kumar, Ishwar Dayal Gupta, Archana Verma, Sohanvir Singh, Ragini Kumari, Nishant Verma
Summary: This study identified genetic variations of the HSPB6 gene in Karan Fries cattle and found associations between certain SNPs and heat tolerance traits, suggesting potential use of these SNPs as markers for genetic selection in breeding programs.
ANIMAL BIOTECHNOLOGY
(2022)
Article
Agriculture, Dairy & Animal Science
Andres Cadenas-Soberanis, Rafael Jimenez-Ocampo, Jeyder I. Arceo-Castillo, Cinthya P. Lopez-Zapata, Carlos F. Aguilar-Perez, Juan C. Ku-Vera
Summary: This study aimed to determine the net energy requirement for maintenance of commercial crossbred beef heifers through fasting heat production measurements on six crossbred heifers. The results, with mean O2 consumption and FHP calculated, may contribute to improving estimates of net energy requirements for maintenance of commercial crossbred beef cattle in the tropics.
Article
Microbiology
Hu Liu, Tao Ran, Chengfu Zhang, Wenzhu Yang, Xiukun Wu, Allan Degen, Ruijun Long, Zunji Shi, Jianwei Zhou
Summary: This study investigated the ruminal bacteria profiles and fermentation parameters of yaks and cattle consuming a low-protein diet, and found that yaks have certain advantages over cattle in consuming low-protein diets with differing energy levels.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Multidisciplinary Sciences
Brittany E. Harlow, Michael D. Flythe, James L. Klotz, David L. Harmon, Glen E. Aiken
Summary: Subacute rumen acidosis (SARA) is caused by highly fermentable carbohydrates in the diet, which lower pH and disrupt the microbial ecology of the rumen. Biochanin A (BCA) can counteract the pH, microbiological, and fermentative changes associated with SARA challenge.
Article
Agriculture, Dairy & Animal Science
Ryan Feuz, Caleb C. Reichhardt, Ryan Larsen, Kara J. Thornton, Mathew D. Garcia
Summary: This study compares the response and economic returns of different cattle breeds to hormone implants. The results show that moderate and high intensity implanted BT steers have higher expected net returns compared to implanted BI steers.
TRANSLATIONAL ANIMAL SCIENCE
(2022)
Article
Agriculture, Dairy & Animal Science
Tatsunori Masaki, Eiji Iwamoto, Kentaro Ikuta, Shiro Kushibiki
Summary: The effects of crude protein and neutral detergent fiber percentages in the diet of Japanese Black steers on rumen fluid and blood biochemical properties were investigated. The results showed that a lower CP and NDF percentage in the feed led to reduced lipopolysaccharide activity in rumen fluid and lower plasma urea nitrogen concentration and enzyme activities in the blood. However, plasma vitamin A concentrations were higher in steers fed with lower CP and NDF levels. Carcass characteristics were not significantly affected by the dietary differences.
ANIMAL SCIENCE JOURNAL
(2023)
Article
Agriculture, Dairy & Animal Science
S. P. Quigley, P. L. Greenwood, D. O. Kleemann, J. A. Owens, C. S. Bawden, G. S. Nattrass
ANIMAL PRODUCTION SCIENCE
(2015)
Article
Agriculture, Dairy & Animal Science
T. Panjaitan, S. P. Quigley, S. R. McLennan, A. J. Swain, D. P. Poppi
ANIMAL PRODUCTION SCIENCE
(2015)
Article
Agriculture, Dairy & Animal Science
D. F. A. Costa, S. P. Quigley, P. Isherwood, S. R. McLennan, D. P. Poppi
JOURNAL OF ANIMAL SCIENCE
(2016)
Article
Agriculture, Dairy & Animal Science
S. R. McLennan, J. M. Campbell, C. H. Pham, K. A. Chandra, S. P. Quigley, D. P. Poppi
ANIMAL PRODUCTION SCIENCE
(2017)
Article
Agriculture, Dairy & Animal Science
T. Panjaitan, S. P. Quigley, S. R. McLennan, D. P. Poppi
ANIMAL PRODUCTION SCIENCE
(2010)
Article
Agriculture, Dairy & Animal Science
E. D. Martinez, K. E. Turnbull, S. P. Quigley, S. J. Streeter, A. Swain, A. V. Klieve, D. Ouwerkerk, D. P. Poppi
ANIMAL PRODUCTION SCIENCE
(2012)
Article
Agriculture, Dairy & Animal Science
Dahlanuddin, O. Yanuarianto, D. P. Poppi, S. R. McLennan, S. P. Quigley
ANIMAL PRODUCTION SCIENCE
(2014)
Article
Agriculture, Dairy & Animal Science
S. P. Quigley, Dahlanuddin, Marsetyo, D. Pamungkas, A. Priyanti, T. Saili, S. R. McLennan, D. P. Poppi
ANIMAL PRODUCTION SCIENCE
(2014)
Article
Agriculture, Dairy & Animal Science
R. Antari, G. P. Ningrum, D. E. Mayberry, Marsetyo, D. Pamungkas, S. P. Quigley, D. P. Poppi
ANIMAL PRODUCTION SCIENCE
(2014)
Article
Agriculture, Dairy & Animal Science
T. Panjaitan, S. P. Quigley, S. R. McLennan, A. J. Swain, D. P. Poppi
ANIMAL PRODUCTION SCIENCE
(2014)
Article
Agriculture, Dairy & Animal Science
D. F. A. Costa, S. P. Quigley, P. Isherwood, S. R. McLennan, X. Q. Sun, S. J. Gibbs, D. P. Poppi
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2017)
Article
Agriculture, Dairy & Animal Science
Dahlanuddin, B. S. Ningsih, D. P. Poppi, S. T. Anderson, S. P. Quigley
ANIMAL PRODUCTION SCIENCE
(2014)
Article
Agriculture, Dairy & Animal Science
Marsetyo, Damry, S. P. Quigley, S. R. McLennan, D. P. Poppi
ANIMAL PRODUCTION SCIENCE
(2012)
Article
Agriculture, Dairy & Animal Science
T. Saili, Marsetyo, D. P. Poppi, P. Isherwood, L. Nafiu, S. P. Quigley
ANIMAL PRODUCTION SCIENCE
(2010)