Boví

Effects of supplemental 25-hydroxyvitamin D3 on growth performance, physiological responses, and gene expression of skeletal muscle growth of finishing beef cattle

23/03/2025 - The objective of this experiment was to evaluate the effects of 25-hydroxyvitamin D3 (25(OH)D3) supplementation on growth performance, carcass characteristics, meat quality, and the expression of...

Short communication: exploring genetic associations with cryptorchidism in Wagyu cattle

09/03/2025 - Wagyu cattle have seen an upsurge in popularity within the United States in recent years, as consumers seek improved meat quality and intramuscular fat, also known as marbling. The small effective...

Short Communication: feeding behaviors are not correlated with area under the curve for reticulorumen pH below 5.8 and 5.6 in finishing steers

06/03/2025 - Persistent low rumen pH (<5.8 to 5.6) is the most researched sign of Subacute Ruminal Acidosis (SARA), a disorder in cattle caused by consumption of a high-concentrate diet....

Influence of heat stress and fescue toxicosis on the pulmonary arterial pressure of beef heifers

26/02/2025 - Peripheral vasoconstriction is a major consequence of fescue toxicosis (FT). However, it remains unclear if major blood vessels, such as the pulmonary artery, are impacted by this...

Predictive ability of a commercial mixed-breed genomic test for feedlot performance and carcass traits of beef × Holstein steers

25/02/2025 - Genomic tests are marketed as a method to appraise cattle value prior to feedlot entry. We aimed to evaluate the use of a commercial, multi-breed genomic test to predict terminal production...

Residual feed intake and reproductive-related parameters in yearling Brangus bulls

24/02/2025 - Residual feed intake (RFI) is a widely employed metric to estimate feed efficiency, which compares actual feed intake to expected feed intake. Enhancing feed efficiency while maintaining reproductive...

Enteric methane emission classification and ranking of growing steers during the backgrounding and finishing phases

15/02/2025 - There is limited information regarding the effect of beef cattle enteric methane (CH4) classification during the backgrounding and finishing phases and the impact of...

Out of Africa: genetic characterization and diversity of Mashona cattle in the United States

14/02/2025 - Mashona is a Sanga breed believed to be an ancient Bos taurus and Bos indicus composite. Since importation to the United States producers with relatively small herds (<70 cows per herd) and...

Predicting dry matter intake in cattle at scale using gradient boosting regression techniques and Gaussian process boosting regression with Shapley additive explanation explainable artificial intelligence, MLflow, and its containerization

13/02/2025 - Dry matter intake (DMI) is a measure critical to managing and evaluating livestock. Methods exist for quantifying individual DMI in dry lot settings that employ expensive intake systems. No methods...

Genetic evaluation of longevity in Australian Angus cattle using random regression models

08/02/2025 - Cow longevity is an economically important trait for beef breeders directly impacting the profitability and sustainability of beef cattle production systems. Despite its great importance, early...

Stocking density in intensive housing and the implications for beef cattle behavior, stress physiology, and liveweight

07/02/2025 - Stocking density can potentially impact cattle welfare during livestock export voyages. The aim of this study was to assess selected measures that reflect the welfare of cattle housed at 3 allometric...

Effects of dietary supplementation with linseed oil, Ascophyllum nodosum or treated A. nodosum on animal performance, gaseous emissions, ruminal fermentation and microbiota, and meat quality in growing dairy-beef bulls

06/02/2025 - Oils high in polyunsaturated fatty acids (PUFA) and seaweeds containing phlorotannins have potential anti-methanogenic effects in ruminants. This study assessed the potential of...

Validating the use of pen scores to capture behaviors expressed by cattle unrestrained in a pen

05/02/2025 - Many subjective methods exist to assist producers in evaluating temperament. Use of a pen test, which allows behavior to be observed in a nonrestrained setting, may be an effective method to evaluate...

Seminal plasma metabolomics and sperm lipidomics profiles of bull semen with different total progressive motile sperm count

31/01/2025 - Total progressive motile sperm count (TPMSC) is a reliable index of fecundity evaluation of bull semen. It is an important determinant of frozen semen yield and conception rate of...

AI-driven precision agriculture for enteric methane mitigation: cross-farm validation with an essential oil-based feed additive

- Ruminant livestock production depends on microorganisms to ferment forages into valuable dairy and meat products. However, this process also generates enteric methane emissions, a significant...

Bulk milk quality differs across welfare levels in Italian dairy cattle farms with different housing systems

Genetic parameter estimates of liver abscesses in feedlot beef cattle

06/02/2025 - The primary reason livers are condemned is due to abscesses, which are visible lesions detected on the liver during routine harvest of the animal. Condemned livers are deemed not fit for human...

Development of a prototype genetic evaluation for teat and udder score in American Angus cattle

19/02/2025 - Improving traits related to teat size (TS) and udder suspension score (US) can have long-term benefits for the health and productivity of beef herds. Well-structured...

Evaluating the Breed and Production Diversity in Dual Purpose Cattle Systems in Colombia: Opportunities for Its Sustainability

04/03/2025 - Approximately 60% of milk production in Colombia comes from dual-purpose (DP) systems, which face limitations in defining racial composition and maintaining production records for genetic resource...

Comparison of Effects of Cold and Warm Water Intake in Winter on Growth Performance, Thermoregulation, Rumen Fermentation Parameters, and Microflora of Wandong Bulls (Bos taurus)

08/03/2025 - Efficient farm practices are crucial for livestock health and performance, and cold stress is a major challenge for cattle in winter. This study aimed to preliminarily investigate the effects of cold...

Blood Source and Anesthetics Effects on the Maintenance of Anopheles darlingi in the Lab-Rearing Condition

08/03/2025 - Anopheles darlingi mosquitoes are the main malaria vectors in the Amazon region and play a significant role in the high transmission cycle of Plasmodium vivax, particularly in areas undergoing...

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