Results 41 to 50 of about 3,571 (151)

A magyarországi dorper és fehér dorper tenyészetek genealógiai vonalainak kialakítása

, 2021
Az éghajlati változásoknak, valamint a gyapjú árának rohamos csökkenése miatt, már hazánkban is szükség van olyan mediterrán területről származó fajok használatára, amelyek jól tűrik a kedvezőtlen időjárási változásokat is, illetve minél kevesebb ...
Szabó, Tünde
core  

Dorper sheep cross breeding with Indigenous sheep breed in Ethiopia [PDF]

, 2019
The objective of this review paper was to review dorper sheep cross breeding with indigenous sheep breed in Ethiopia. The paper reviewed and discussed the history of dorper breed introduction, research and development efforts in crossbreeding and their ...
Walle, Desalegn Ayichew
core   +1 more source

Gene expression of regulatory enzymes involved in the intermediate metabolism of sheep subjected to feed restriction

Animal, 2013
The effect of feed restriction on gene expression of regulatory enzymes of intermediary metabolism was studied in two sheep breeds (Australian Merino and Dorper) subjected to two nutritional treatments: feed restriction (85% of daily maintenance ...
S. van Harten, R. Brito, A.M. Almeida, T. Scanlon, T. Kilminster, J. Milton, J. Greeff, C. Oldham, L.A. Cardoso   +8 more
doaj   +1 more source

Genetic Parameters and Genome‐Wide Association Studies for Fertility and Reproduction Traits in U.S. Katahdin Sheep Based on the Single‐Step GBLUP Methodology

Journal of Animal Breeding and Genetics, Volume 143, Issue 5, Page 625-638, September 2026.
ABSTRACT Sheep production contributes to a secure and diverse food and fibre supply in the United States, with growing ethnic diversity strengthening demand. Katahdin is a composite hair‐type sheep breed developed in the United States that has become the most popular breed in many regions of the country and the first one to have genomic selection ...
Alejandra Toro Ospina, Ronald M. Lewis, Bradley A. Freking, Joan M. Burke, Thomas W. Murphy, Carrie S. Wilson, Luiz F. Brito   +6 more
wiley   +1 more source

Nutritional Level and Type of Feed on the Reproductive Performance of Ewe and Its Effects on Offspring

Reproduction in Domestic Animals, Volume 61, Issue 8, August 2026.
ABSTRACT The amount and source of nutrition are important factors that influence an ewe's reproductive ability, but the effects of diet on the reproductive performance of its offspring are unclear. This study aimed to investigate the impact of maternal nutrition (level of nutrition and source) on the reproductive performance of ewes and their female ...
Fernanda Ferreira dos Santos, Maria Fernanda Soares Queiroz, Mônica Márcia da Silva, Amanda de Carvalho, Luciano Brochine, Mariluce Cardoso Oliveira, Sarita Bonagurio Gallo   +6 more
wiley   +1 more source

Methodological Determinants of Grayscale Pixel Intensity in Ram Testicular Ultrasonography: Effects of ROI Placement and Imaging Plane Across Age Groups and Two Reproductive Periods

Reproduction in Domestic Animals, Volume 61, Issue 8, August 2026.
ABSTRACT Testicular ultrasonography is increasingly used in ram breeding soundness evaluations, yet methodological standardization of quantitative grayscale image analysis remains limited. The primary objective of this study was to determine the effects of region‐of‐interest (ROI) placement and imaging plane on testicular parenchymal numerical pixel ...
Bülent Bülbül, Şükrü Doğan, Mustafa Yiğit Nizam, Necdet Akay   +3 more
wiley   +1 more source

Effects of high heat load conditions on body weight, feed intake, temperature, and respiration of Dorper, Katahdin, and St. Croix sheep

Journal of Applied Animal Research, 2019
Forty-six Dorper, 46 Katahdin, and 43 St. Croix female sheep from four regions of the USA were used to evaluate responses to high heat load index (HLI) conditions.
Dereje Tadesse, Ryszard Puchala, Terry A. Gipson, Arthur L. Goetsch   +3 more
doaj   +1 more source

Factors associated with the reproductive performance of ewes inseminated laparoscopically in England and Wales: A longitudinal study

Veterinary Record, Volume 199, Issue 1, Page e21-e29, 4/11 July 2026.
Abstract Background Laparoscopic intrauterine artificial insemination (Lap‐AI) is used in sheep genetic improvement programmes. However, the lambing rate (LR) (i.e., the proportion of inseminated ewes that lamb) following Lap‐AI is variable. Previously, one small UK study investigated factors associated with LR, but it did not adjust for dependencies ...
Mike J. Glover, Laura E. Green, Rachel Clifton   +2 more
wiley   +1 more source

Prolapsus Rektum Pada Domba Dorper (Case Report: Rectal Prolapses in Dorper Sheep)

Jurnal Sain Veteriner
Prolaps rektum merupakan tonjolan jaringan rektal di luar anus. Faktor penyebab prolaps rektum pada hewan muda dan tua meliputi konstipasi, endoparasit, diare, faktor keturunan, kehilangan daya spinchter ani dan pelonggaran selaput lendir rektum. Hewan kasus adalah tiga ekor domba Dorper berasal dari Wonosari, Gunungkidul dengan keluhan prolaps rektum ...
Artina Prastiwi, Dhirgo Adji, Rr. Devita Anggraeni, Agus Purnomo, Mungky Emma Ramadhani   +4 more
openaire   +3 more sources

Prevalence study of SNP c.421G>T in the ADAMTS2 gene responsible for dermatosparaxis in White Dorper sheep in Brazil

Pesquisa Veterinária Brasileira, 2016
: Dermatosparaxis is an autosomal recessive disorder of connective tissue; the disorder is clinically characterized by skin fragility and hyperextensibility.
Danilo G.A. Andrade, Felipe M. Dalanezi, Anelize S. Trecenti, Paulo Henrique J. Cunha, Alexandre S. Borges, José P. Oliveira-Filho   +5 more
doaj   +1 more source