Results 51 to 60 of about 19,880 (243)

Effect of DGAT1 gene polymorphisms in coarse-haired fat-tailed lambs of different genotypes [PDF]

open access: yesBrazilian Journal of Biology
The aim of this study was to investigate the DGAT1 gene polymorphism and its effects on lamb weight in kazakh and tajik sheep breeds. A total of 97 blood samples were collected from purebred (еdilbay х еdilbay) and crossbred lambs (еdilbay x gissar ...
L. Mukanova   +5 more
doaj   +1 more source

GROWTH PERFORMANCE AND CARCASS QUALITY ASSESSMENT OF PUREBRED AND CROSSBRED ROMANOV LAMBS [PDF]

open access: yesMesopotamia Journal of Agriculture, 2020
The present study aimed to examine the growth performance and characteristics of carcass quality of purebred and crossbred Romanov male lambs (3/4 Romanov × ¼ Edilbai).
Nawzad Aziz, Dvalishvili. G
doaj   +1 more source

The nature of the purebred-crossbred genetic covariance

open access: yesGenetical Research, 1971
SUMMARYEpistatic models are examined for conditions which result in a negative covariance between a sire's purebred and test-cross progenies. It is found that heterozygote superiority is not a necessary condition for its occurrence. The frequencies of the same allele in the selected population and in the tester should be divergent.
R W, McNew, A E, Bell
openaire   +2 more sources

THE COURSE OF CARDIOMYOPATHY IN PUREBRED CALLAMUSES

open access: yes, 2023
The heart belongs to the order of the organ, which participates in the movement of blood circulation and lymph in the body, manifests itself in an empty muscle organ. The heart of mammals: the base and upper part, the left and right surface, the front and the middle edge are separated into parts.
Teshaev, Shukhrat, Sharipova, Madina
openaire   +2 more sources

How much is that doodle in the window? Exploring motivations and behaviours of UK owners acquiring designer crossbreed dogs (2019-2020)

open access: yesCanine Medicine and Genetics, 2022
Background Demand for intentional crosses of purebred dog breeds, often labelled ‘designer crossbreeds’ (e.g., Labrador Retriever X Poodle, the ‘Labradoodle’), has recently increased in the UK. This study aimed to explore this phenomenon by comparing pre-
E. Burnett   +6 more
doaj   +1 more source

Integrity of Sperm Cell Membrane in the Semen of Crossbred and Purebred Boars during Storage at 17 °C: Heterosis Effects

open access: yesAnimals, 2021
Simple Summary The cell membrane of spermatozoa is the main structural element of these gametes. In boars, due to its structure, it is most susceptible to various types of damage induced by various factors. Artificial insemination in pigs mainly involves
A. Wysokińska, Dorota Szablicka
semanticscholar   +1 more source

THE EVALUATION OF IRAQI PUREBRED ARAB HORSES OVER 12 YEARS

open access: yesThe Iraqi Journal of Veterinary Medicine, 2021
Changes in the exterior purebred Arab horses during the last 12 years have been analyzed. Measurements with regard to the exterior were made on the presently living 238 horses from Baghdad, Nenava and Dialla.
Sinan A. Al- khazraji
doaj   +1 more source

Evaluation of first-born cows of different genotypes on the indicators of udder development and milk production

open access: yesНауковий вісник Львівського національного університету ветеринарної медицини та біотехнологій імені С.З. Гжицького. Серія: Сільськогосподарські науки, 2021
Recently, an important element in improving the genetic traits of dairy cattle on commercial farms is the use of interbreeding (crossbreeding). The use of crossbreeding makes it possible to use a variety of additive genetic levels between breeds to grow ...
O. O. Borshch, O. V. Borshch
doaj   +1 more source

The doodle dilemma: How the physical health of ‘Designer-crossbreed’ Cockapoo, Labradoodle and Cavapoo dogs’ compares to their purebred progenitor breeds

open access: yesPLoS ONE
Booming UK ownership of designer-crossbreed dogs resulting from intentional crossing of distinct purebred breeds is often motivated by perceived enhanced health, despite limited evidence supporting a strong ’hybrid vigour’ effect in dogs.
Gina T. Bryson   +4 more
semanticscholar   +1 more source

Prioritization of Appearance over Health and Temperament Is Detrimental to the Welfare of Purebred Dogs and Cats

open access: yesAnimals
Simple Summary The welfare of purebred dogs and cats is being undermined by fashion trends that popularize extreme shapes. Official descriptions of breeds require their distinctive characteristics to be compatible with good health. Nevertheless, extremes
E. Morel   +4 more
semanticscholar   +1 more source

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