Results 41 to 50 of about 622,443 (312)

Genetic Relationship of Body Energy and Blood Metabolites with Reproduction in Holstein Cows [PDF]

open access: yes, 2008
Body condition score (BCS), energy content (EC), cumulative effective energy balance (CEEB), and blood serum concentrations of glucose, beta-hydroxybutyrate (BHBA), and nonesterified fatty acids ( NEFA) were measured throughout first lactation in 497 ...
A. Tsiaras   +40 more
core   +1 more source

The Effect of Nutrients on the Reproductive Performance of Dairy Cows

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
The aim of this paper is to review the effects of the quality of nutrients in the ration on the reproductive function of dairy cows. Protein supplementation is one of the most important nutrients in milk production. However, an excess of protein over the
Ion Carabă   +7 more
doaj  

Comparison of Gut Microbiota and Metabolic Status of Sows With Different Litter Sizes During Pregnancy

open access: yesFrontiers in Veterinary Science, 2021
The experiment was conducted to compare the differences of gut microbiota and metabolic status of sows with different litter sizes on days 30 and 110 of gestation, and uncover the relationship between the composition of maternal gut microbiota during ...
Jiali Chen   +4 more
doaj   +1 more source

Effects of Dietary Modified Bazhen on Reproductive Performance, Immunity, Breast Milk Microbes, and Metabolome Characterization of Sows

open access: yesFrontiers in Microbiology, 2021
Bazhen is a classic prescription used for the prevention of qi and blood deficiency. The present study aimed to investigate the effects of dietary supplementation with modified Bazhen powder (MBP) on sows during lactation.
Jian Geng   +13 more
doaj   +1 more source

Research Note: Comparison on laying behavior and clutch traits among Zhedong white geese (Anser cygnoides), Sichuan white geese (Anser cygnoides), and Hungarian geese (Anser anser)

open access: yesPoultry Science, 2022
: Egg laying is an important reproductive behavior of female poultry. Here, we investigated the laying behavior and clutch traits of different goose breeds, specifically, Zhedong white geese (Anser cygnoides), Sichuan white geese (Anser cygnoides) and ...
Qiang Bao   +7 more
doaj   +1 more source

How effective are maternal effects at having effects? [PDF]

open access: yes, 2006
The well studied trade-off between offspring size and offspring number assumes that offspring fitness increases with increasing per-offspring investment.
Benton T.G   +5 more
core   +2 more sources

Female reproductive tract-on-a-chip for selecting sperm with ultra-low DNA fragmentation index

open access: yesMicrosystems & Nanoengineering
High levels of sperm DNA fragmentation index (DFI) represent a critical factor in male infertility, with detrimental effects on embryonic development and offspring well-being. However, selecting sperm with low DFI remains a tremendous challenge. Here, we
Jing Dai   +11 more
doaj   +1 more source

Effects of dietary genistin supplementation on reproductive performance, immunity and antioxidative capacity in gestating sows

open access: yesFrontiers in Veterinary Science
Genistin is an isoflavone of soybean, with estrogenic activity. This experiment was conducted to investigate its effect on reproductive performance, antioxidant capacity, and immunity in gestating sows.
Yuchen Li   +10 more
doaj   +1 more source

Impact of acute short-term high thermal stress during early embryogenesis on hatchability, physiological body reaction, and ovarian follicles development of quails

open access: yesPoultry Science, 2021
This experiment aimed to evaluate the impact of continuous and intermittent thermal stress during early embryogenesis on hatchability, physiological body reaction, ovary weight, and follicle development of quails.
Ahmed Abdel-Kareem Abuoghaba   +3 more
doaj   +1 more source

Environmental conditions during early life accelerate the rate of senescence in a short-lived passerine bird [PDF]

open access: yes, 2015
Environmental conditions experienced in early life may shape subsequent phenotypic traits including life history. We investigated how predation risk caused by domestic cats (Felis silvestris catus) and local breeding density affected patterns of ...
Balbontín Arenas, Javier   +1 more
core   +2 more sources

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