Results 51 to 60 of about 71,268 (162)

INFLUENCE OF BREED AND MONTH OF MATING ON THE GESTATION LENGTH AND LITTER SIZE AT BIRTH AMONG BROILER RABBITS IN KERALA [PDF]

open access: yesJournal of Veterinary and Animal Sciences, 1999
Effect of breed and month of mating on the litter size at birth and gestation length in three temperate broiler breeds of rabbits namely, New Zealand White, Soviet Chinchilla and Grey Giant during different months of mating from January to December was ...
P. Nandakumar, Marykutty Thomas
doaj  

The effect of season and parity order on fertility of rabbit does and kit growth

open access: yesCzech Journal of Animal Science, 2010
The effect of season and parity order on doe fertility and rabbit growth was evaluated. Two hundred and fifty Hyplus® does were divided into five groups according to kindling, each in a given season of the year (September, December, February, April and ...
J. Tůma, E. Tůmová, V. Valášek
doaj   +1 more source

Screening of Litter-Size-Associated SNPs in NOX4, PDE11A and GHR Genes of Sheep

open access: yesAnimals
In previous studies, NOX4, PDE11A and GHR genes have been screened as important candidate genes for litter size in sheep by using the GWAS method; however, neither their effects on litter size nor the loci associated with litter size have been identified.
Jiajun Li   +6 more
doaj   +1 more source

Effects of parity, season of birth, and sex on within-litter variation and pre-weaning performance of F1 Large White × Landrace pigs [PDF]

open access: yesVeterinary World
Background and Aim: A piglet’s pre-weaning performance significantly influences both animal welfare and profitability in pig production. Understanding piglet pre-weaning performance influencing factors is key to enhancing animal welfare, reducing losses,
Nqobile Lungile Buthelezi   +6 more
doaj   +1 more source

Influence of litter size on growth and structure of m. semitendinosus in newborn piglets and slaughter pigs [PDF]

open access: yesBiotechnology in Animal Husbandry, 2017
Modern meat production has to meet the requirements of profitability, while meeting the demands of consumers in terms of meat quality at the same time. Huge scientific work has been done in order to find balance between quantity and quality of meet. Most
Božičković Ivana   +4 more
doaj  

Major Components in Limiting Litter Size [PDF]

open access: yes, 2016
The litter size is an important trait in prolific species such as rabbits and pigs. However, selection on litter size has had limited success in these species because of its low heritabil‐ ity and sex-limited expression. The litter size is a complex physiological trait in prolific species, affected by several components that are expressed sequentially,
openaire   +2 more sources

Factors affecting reproductive performance and genetic analysis of American Duroc, Yorkshire, and Landrace sow

open access: yesCogent Food & Agriculture
This study investigated the influence of sow farrowing season, litter size, and breed on sow reproductive performance, using a comprehensive dataset comprising 20,048 records spanning from 2016 to 2021, involving 1,589 Duroc, 3,070 Landrace, and 15,389 ...
Hongzhen Cao   +5 more
doaj   +1 more source

Early life reproductive investment affects longevity in ewes

open access: yesAnimal
To increase lifetime production of ewes, it has been suggested to mate ewe lambs. However, research on the effect of age at first lambing on longevity has shown conflicting results. This study investigated the impact of early life reproduction (i.e., the
L.S. Kierkegaard   +6 more
doaj   +1 more source

Genetic and Non-Genetic Factors Affecting Litter Size and Birth Weight of Rabbit in Minna, Niger State, Nigeria

open access: yesAnimal Production: Indonesian Journal of Animal Production, 2012
. Genetic and non-genetic factors influencing litter size and birth weight of rabbit was evaluated using New Zealand White and Chinchilla breeds. Parameters measured were total number of kittens born per litter, number of litter born alive, live litter ...
SSA Egena, GN Akpa, IC Alemede, A Aremu
doaj  

HERITABILITY ESTIMATES OF LITTER SIZE IN PIGS [PDF]

open access: yesAnnales de Génétique et de Sélection Animale, 1978
Richter L, Willeke H
openaire   +3 more sources

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