Results 31 to 40 of about 5,207 (135)
Poor husbandry practices in Bukombe District accelerate diseases in livestock and indiscriminate uses of antimicrobials. Cow abortions, raw cow placenta and aborted fetuses feeding dogs, communal grazing and watering and introduction of new animals predict brucellosis in the herd.
Makoye Mhozya +2 more
wiley +1 more source
Handmade Biopsy for Genotyping of In Vitro‐Produced Bovine Embryos
ABSTRACT Blastocyst biopsy allows genomic selection of pre‐implantation bovine embryos, reducing generation interval and enhancing the genetic gain. We aimed to evaluate the suitability of a simple biopsy procedure, performed by hands, using a splitting microblade and a stereoscope, on in vitro‐produced embryos. Crossbred Bos taurus x B.
Luiz Sergio Almeida Camargo +8 more
wiley +1 more source
Morphological assessment of the Zebu Bororo (Wodaabé) cattle of Niger in the West African zebu framework [PDF]
Abstract. A total of 357 adult cows and 29 sires belonging to the long-horned Niger Zebu Bororo cattle population were assessed for 13 body measurements and 11 qualitative traits. Data were jointly analysed with 311 cows and 64 sires belonging to other four West African zebu cattle populations, sampled in Burkina Faso and Benin, representative of both ...
M. Maaouia A. Moussa +11 more
openaire +3 more sources
ABSTRACT This study aimed to estimate the variance components, heritabilities and genetic correlations between four new different categories of stayability (STAY48‐2, STAY48‐3, STAY54‐2, STAY54‐3) with weight at 240 days of age (W240), weight at 450 days of age (W450), scrotal circumference at 365 days of age (SC365), age at puberty in males (APM ...
Letícia Silva Pereira +5 more
wiley +1 more source
Genetic Parameters for Novel Feedlot Profitability‐Related Traits in Nelore Cattle
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
ABSTRACT This study evaluated the influence of variance component (VC) estimates, obtained from different models and two relationship matrices, pedigree‐based (BLUP) and genomic information‐based (ssGBLUP), on genomic predictions of carcass traits in Montana composite cattle.
Caroline Assis Almeida +9 more
wiley +1 more source
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
Knowledge mapping of risk mitigation measures against vector‐borne diseases
Abstract A comprehensive synthesis of current evidence on surveillance, prevention and control measures for 25 selected vector‐borne diseases (VBDs) affecting animals in the EU is presented here. The assessment integrates evidence from systematic literature reviews, modelling studies, field investigations and expert judgement.
European Food Safety Authority (EFSA) +8 more
wiley +1 more source
Milk yield of Simmental × Zebu and Brown Swiss × Zebu cows in tropical climate.
El objetivo del presente trabajo fue determinar la producción de leche en vacas Simmental-Cebú y Suizo Pardo-Cebú con diferentes proporciones de genes Bos taurus. El estudio se realizó de 1985 a 2007 en el sitio experimental Playa Vicente (Veracruz, México), del Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias.
Ríos-Utrera, Ángel +3 more
openaire +2 more sources
Zebus or humped cattle are the typical cattle of the South Asian subcontinent. At present, there are thirty or more zebu breeds in India. The recognized breeds differ mainly in the shape and firmness of the hump, horn size, ranging from long-horned to very short-horned or even almost rudimentary horns, and horn shape, ranging from lyre-shaped through ...
openaire +1 more source

