Results 41 to 50 of about 135,005 (301)
Insemination factors affecting the conception rate in seasonal calving Holstein-Friesian cows [PDF]
, 2003 peer-reviewedDifferences in conception rate to first service between artificial inseminations (AI) carried out by commercial AI operators (CAI) or do-it-yourself operators (DIY), between natural service (NAT) and AI, between different AI sires, and ...
Mee, John F +13 more
core +1 more source
Effects of Season and Parity on Milk Production and Milk Composition of Holstein Cows [PDF]
BIO Web of ConferencesThis study aimed to investigate the effects of seasonal change and parity on milk production and milk composition of Taiwan Holstein Cows. The 171 complete lactation records from 68 Holstein cows, with parity 1, 2, 3, and more than 4 were used in this ...
Ridhowi Aswah +6 more
doaj +1 more source
The Relationship Between Polymorphism of The Prolactin Gene and The Production of Milk, its Components, and The Reproductive Performance of Holstein Cows [PDF]
مجلة الأنبار للعلوم الزراعيةThe study was conducted at the Al-Khalis dairy production station in Diyala Governorate during the 2021-22 production season on 63 Holstein cows to determine the effect of polymorphism of the prolactin gene (PRL) on their milk production, its components,
R. Al-Obaidi, H. Al-Janabi
doaj +1 more source
Gas Chromatography–Mass Spectrometry-Based Metabolomic Analysis of Wagyu and Holstein Beef
Metabolites, 2020 Japanese Black cattle (Wagyu) beef is characterized by high intramuscular fat content and has a characteristic sweet taste. However, the chemical components for characterizing the sweet taste of Wagyu beef have been unclear.
Tomoya Yamada +2 more
doaj +1 more source
Determination of Melatonin Differences between Day and Night Milk in Dairy Cattle
Journal of Agricultural Sciences, 2021 The aim of this study was to determine the difference between melatonin hormone in night milk and melatonin concentration in day milk of Holstein cows.
Özcan Şahin +4 more
doaj +1 more source
Folia VeterinariaPerinatal calf mortality (PCM) and multiple pregnancies (twins) present significant challenges in dairy cattle breeding, impacting both economic viability and reproductive performance. This study examined risk factors for stillbirths and twin births in a
Ouarfli Lazoumi, Chehma Abdelmadjid
doaj +1 more source
Association between age at first calving and milk production in first lactation on longevity traits in Holstein cows [PDF]
Biotechnology in Animal Husbandry, 2020 The objective of this research was to determine the association between age at first calving (AFC) and milk production in the first lactation of longevity traits for Holstein cows. The research was conducted on 2307 cows raised on 4 farms in AP Vojvodina.
Kučević Denis +6 more
doaj
TYPE TRAITS AND MILK YIELD GENETIC PARAMETERS AND BREEDING VALUES OF HOLSTEIN IN IRAQ [PDF]
Basrah Journal of Veterinary Research, 2010 In this study a total of 928 Holstein cows daughters of 33 sires bred at Al-Naser Dairy Cow Station (60 km south of Baghdad) were used to appraisal the final score for the 14 linear type traits: rear udder height (RERUDHIH), teat length (TETLENGT ...
Adnan Jabbar Jadoa
doaj +1 more source
Molecular Oncology, EarlyView.RNA profiling of circulating extracellular vesicles (EVs) from blood samples of men undergoing prostate biopsy identifies transcripts associated with clinically significant prostate cancer. Integrative analysis with public tumor datasets links EV‐derived gene signatures to tumor stage and progression‐free survival, highlighting CASP3, XRCC2, and RIT1 ...
Stefan Werner +14 more
wiley +1 more source
The Journal of Reproduction and Development, 2022 It has been suggested that domestication has turned cattle from seasonal breeders to annual breeders. This study examined the seasonal differences in early postpartum ovulation and subsequent reproductive performance in 542 Holstein cows. Cows displaying
Minoru SAKAGUCHI +2 more
doaj +1 more source