Results 241 to 250 of about 698,429 (416)

Genetic Parameters of Age at Conception in Nellore Females Using Threshold Models

open access: yesJournal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Age at conception is a critical factor in the intensification of production systems. It is crucial for intensifying production, optimising reproductive efficiency and boosting Nellore female productivity for genetic progress. However, the low heritability estimates currently limit the effectiveness of selection responses, thereby underscoring ...
Raimundo Nonato Colares Camargo Júnior   +10 more
wiley   +1 more source

Genetic Evaluation of Beef Sires Using a Beef‐on‐Dairy Crossbred Reference Population

open access: yesJournal of Animal Breeding and Genetics, EarlyView.
ABSTRACT In recent years, Beef‐on‐Dairy (BoD) crossbreeding programs have gained momentum to enhance dairy cattle's economic and genetic merits while meeting the demand for high‐quality beef. However, bulls with superior growth potential can lead to calving problems; thus, Holstein dairy farmers must decide which semen to use to avoid calving problems ...
Julius Mugambe   +4 more
wiley   +1 more source

Risk Factors Associated with Bruises in Beef Cattle Carcasses. [PDF]

open access: yesAnimals (Basel)
Dias FMGN   +5 more
europepmc   +1 more source

Genetic Parameters for Novel Feedlot Profitability‐Related Traits in Nelore Cattle

open access: yesJournal of Animal Breeding and Genetics, EarlyView.
ABSTRACT This study aimed to estimate (co)variance components and genetic parameters for accumulated profitability (AFP) and profit per kilogram of liveweight gain (PFT), and their relationships with weight at 450 days of age (W450), scrotal circumference at 365 days of age (SC365), age at first calving (AFC), probability of precocious calving at 30 ...
Letícia Pereira   +9 more
wiley   +1 more source

Allelic variation in CYP3A4 and PLB1 drives feed efficiency and immunometabolic resilience in beef cattle. [PDF]

open access: yesBMC Genomics
Morenikeji OB   +10 more
europepmc   +1 more source

Genomic Prediction Ability Using Linear and Threshold Approaches for Different Stayability Definitions in Nellore Females

open access: yesJournal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Enhancing female longevity through regular calvings improves herd replacement rates and reduces the costs associated with replacing low reproductive efficiency animals. Stayability (STAY), defined as a cow's ability to remain productive in the herd, is a categorical trait that challenges traditional genetic evaluation due to its non‐normal ...
Letícia Silva Pereira   +5 more
wiley   +1 more source

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