Results 21 to 30 of about 13,716,851 (301)

On the concept of rate-independence [PDF]

open access: yesQuarterly of Applied Mathematics, 1968
Mathematics Technical ...
Owen, D. R., Williams, W. O.
openaire   +1 more source

Investigating conception rate for beef service sires bred to dairy cows and heifers.

open access: yesJournal of Dairy Science, 2020
The widespread use of sexed semen on US dairy cows and heifers has led to an excess of replacement heifers' calves, and the sale prices for those calves are much lower than in the past.
T. McWhorter   +6 more
semanticscholar   +1 more source

The efficiency of estrus synchronization protocols and artificial insemination in the Abergelle goat on-station and on-farm conditions of Northern Ethiopia

open access: yesJournal of Applied Animal Research, 2022
This study was conducted to investigate the effect of different estrus synchronization protocols followed by artificial insemination on estrus response and the conception rate of Abergelle goats.
Bekahegn Wondim   +6 more
doaj   +1 more source

EFFECTS OF ORAL ADMINISTRATION OF Lepidium sativum, Moringa oleifera OILS AND AQUEOUS EXTRACT OF Vitex agnnus castus ON REPRODUCTIVE PERFORMANCE AND BLOOD BIOCHEMICAL OF DOE RABBITS [PDF]

open access: yesEgyptian Journal of Rabbit Science, 2021
ABTRACT: This study was aimed to evaluate the effects of dietary supplementation with Lepidium sativum (LS), Moringa oleifera Oils (Mo) and aqueous extract Of Vitex agnnus castys (VACLex) on reproductive hormones, antioxidant, biochemical blood and ...
Mohamed Abd elaal   +3 more
doaj   +1 more source

Fertility parameters in German dairy herds: Associations with milk yield and herd size

open access: yesCzech Journal of Animal Science, 2019
Fertility in dairy cows has decreased over the last fifty years while milk production per cow has increased. Furthermore, dairy herds become larger resulting in fewer employees per cow, which might also influence reproductive performance.
Jörn Rethmeier   +4 more
doaj   +1 more source

Peningkatan Conception Rate dengan Inseminasi Buatan Menggunakan Semen Sexing Double Dosis pada Sapi Persilangan Ongole

open access: yesJurnal Ternak Tropika, 2019
Tujuan dari penelitian ini adalah untuk mengetahui peningkatan conception rate melalui insmeinasi buatan dengan menggunakan semen sexing double dosis pada sapi persilangan ongole.
Aulia Puspita Anugra Yekti   +3 more
doaj   +1 more source

THE SUCCESS RATE OF ARTIFICIAL INSEMINATION USING LIQUID SEMEN WITH DIFFERENT DILUENTS IN BALI CATTLE [PDF]

open access: yesRussian Journal of Agricultural and Socio-Economic Sciences, 2020
Artificial insemination using liquid semen is beneficial for areas where liquid nitrogen is not available. The purpose of this study was to determine the success rate of artificial insemination using liquid semen with different diluents based on non ...
Hudiatma M.D.   +6 more
doaj   +1 more source

Effects of use of conventional and sexed semen on the conception rate in heifers: A comparison study.

open access: yesTheriogenology, 2019
Conception rate with the use of sexed semen is lower than that with the use of conventional semen, posing a major problem in the dairy industry. The aim of this study was to understand the risk factors that affect the conception rate after artificial ...
K. Oikawa   +6 more
semanticscholar   +1 more source

Aplikasi Inseminasi Buatan pada Induk Sapi Potong Menggunakan Se-men Cair Sapi Peranakan Ongole dengan Pengencer Cauda Epidydymal Plasma-2 + 0,6% Bovine Serum Albumin

open access: yesJurnal Ilmu-Ilmu Peternakan, 2018
Artificial insemination (AI) in cattle using Ongole Cross Breed liquid semen with cauda epidydymal plasma-2 (CEP-2) diluent+0.6% Bovine Serum Albumin (BSA) aimed to improve the genetic quality of livestock with high sperm motility on beef cows.
Achadiah Rachmawati   +4 more
doaj   +1 more source

Follicular dynamics during the pre-ovulatory and subsequent first follicular wave stages affect the pregnancy outcome in Japanese Black cows

open access: yesThe Journal of Reproduction and Development, 2021
The diameters of the pre-ovulatory follicles (PF) and the largest follicle during the subsequent first follicular wave (W1LF), and plasma estradiol-17β (E2) concentrations were monitored on Days 0, 1, 3, 5, and 7 (ovulation = Day 1).
Tsumugi YOSHIYAMA   +2 more
doaj   +1 more source

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