Results 41 to 50 of about 605 (165)

Non‐Invasive and Low‐Cost Approach for Estimating Sheep Weight Using Computer Vision

open access: yesEngineering Reports, Volume 7, Issue 8, August 2025.
Non‐invasive sheep weight estimation system using a Kinect V2 sensor, integrating EfficientNetB3 for frame selection, U‐Net for segmentation, and CNN‐based feature regression for weight prediction. The ensemble model achieved an RMSE of 3.43 kg and R 2 of 0.89, improving accuracy and reducing animal stress.
Júlio V. M. Marques   +4 more
wiley   +1 more source

Investigating mutations in the genes GDF9 and BMP15 in Pelibuey sheep through the amplification-refractory mutation system with tetra-primers

open access: yesAustral Journal of Veterinary Sciences, 2023
Single Nucleotide Polymorphisms (SNP) or mutations are variations with a broad distribution in the genome and, as part of genetic studies, SNP allow the identification of allelic variants related to characteristics of economic importance in sheep ...
Canuto Muñoz-García   +6 more
doaj   +1 more source

Evaluation of strategic and selective anthelmintic treatments on Pelibuey ewes in Cuba

open access: yesRevista Colombiana de Ciencias Pecuarias, 2014
Summary Background: gastrointestinal parasitism is an important limitation for sheep production in Cuba. This situation is worsened by the lack of an effective parasite control strategy. Objective: to assess whether selective and strategic treatments could help achieve a level of control of nematodes similar to systematic drenchings.
Javier Arece-García   +3 more
openaire   +4 more sources

RELATIONSHIP BETWEEN BODY VOLUME AND BODY WEIGHT IN PELIBUEY EWES

open access: yesTropical and Subtropical Agroecosystems, 2021
<p><strong>Background.</strong> In terms of animal management, the measurement of body weight (BW) is important in the design of nutrition and health programs. <strong>Objective.</strong> The objective of the present study was to evaluate the relationship between body volume (BV) and BW in Pelibuey ewe lambs and ewes.
Rosario Salazar-Cuytun   +8 more
openaire   +2 more sources

Actividad reproductiva de la oveja Pelibuey durante la época del anestro: Influencia de la presencia del macho

open access: yesRevista Científica, 2010
Se determinó la actividad reproductiva de ovejas Pelibuey durante la época de anestro, a 19° latitud norte. Se utilizaron 26 ovejas Pelibuey adultas y 21 ovejas nulíparas, hijas de las anteriores.
Javier Valencia   +5 more
doaj  

Pubertad en corderos pelibuey nacidos de ovejas con reproducción estacional o continua

open access: yesRevista Científica, 2010
Corderos Pelibuey (n = 14) nacidos de siete madres con reproducción estacional (E) o de otras siete continuas (C) fueron mantenidos en condiciones intensivas con la finalidad de determinar si existen diferencias en algunos eventos asociados a la ...
Javier Valencia Méndez   +4 more
doaj  

Prediction of carcase characteristics using neck traits from hair-sheep ewes

open access: yesItalian Journal of Animal Science, 2022
The objective of this study was to develop predictive equations for carcase composition using neck tissue composition as predictors in multiparous Pelibuey ewes (n=50, body weight = 39 ± 7 kg and body condition score = 2.56 ± 0.98 points) were used to ...
Flor de María Rivera-Alegria   +9 more
doaj   +1 more source

Fisiología del ovino tabasco o pelibuey en clima subtropical A(f)c:ll Química sanguínea

open access: yesRevista Mexicana de Ciencias Pecuarias, 1984
Se describen los valores de diferentes parámetros químicos en 60 ovinos de la raza Tabasco o Pelibuey en Hueytamalco, Pue. Los animales fueron separados en grupos de acuerdo al sexo y edad: machos adultos enteros, hembras adultas en lactación, machos y ...
Eduardo Rodríguez del Rosal   +2 more
doaj  

Prediction of carcass characteristics of discarded Pelibuey ewes by ultrasound measurements

open access: yesRevista Mexicana de Ciencias Pecuarias, 2019
The objective of present study was to predict the carcass characteristics of 28 discarded Pelibuey ewes (41.01 ± 8.43 kg) using ultrasonography. The ultrasonic measurements of fat thickness (FT), area, (LDA), depth (DLD) and width (WLD) of the Longissimus dorsi, between the 12th and 13th thoracic vertebra and between the 3rd and 4th lumbar vertebra ...
Alfonso J. Chay-Canul   +6 more
openaire   +3 more sources

Comportamiento del borrego plilbuey en crecimiento, alimentado con dietas con base en rastrojo de maíz tratado con alcalis (NH3,NaOH, UREA)

open access: yesRevista Mexicana de Ciencias Pecuarias, 1984
En nuestro país es frecuente el empleo del rastrojo de maíz como único alimento para rumiantes, a pesar de su escaso valor alimenticio, su baja digestibilidad y su poca gustosidad, todo lo cual se debe principalmente a su estado de lignificación (Sánchez,
Alvaro Jiménez Duarte   +1 more
doaj  

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