Results 21 to 30 of about 52,949 (237)
Theobroma grandiflorum breeding optimization based on repeatability, stability and adaptability information [PDF]
Euphytica, 2021 AbstractThe cultivation of Theobroma grandiflorum in the Brazilian Amazon is mainly conducted by family farmers who use a range of different management strategies. Thus, breeding programs of the species must address the challenge of developing cultivars that are adapted to and stable in a variety of cultivation environments. In this context, this study
Saulo Fabrício da Silva Chaves +5 more
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Follicular fluid composition of ovulatory follicles in repeat breeder Holstein dairy cows
Asian Pacific Journal of Reproduction, 2019 Objective: To examine differences in the metabolite, steroid and lipopolysaccharide of follicular fluid collected from the ovulatory follicle of Holstein repeat breeding cows, lactating cows, and virgin fertile heifers.
Asghar Mogheiseh +5 more
doaj +1 more source
Plasma progesterone profile and conception rate following exogenous supplementation of gonadotropin-releasing hormone, human chorionic gonadotropin, and progesterone releasing intra-vaginal device in repeat-breeder crossbred cows [PDF]
Veterinary World, 2016 Aim: This study was designed to evaluate the effect of gonadotropin-releasing hormone (GnRH), human chorionic gonadotropin (hCG), and progesterone impregnated intra-vaginal device on progesterone profile and conception rate in repeat-breeding crossbred ...
N. K. J. Pandey +3 more
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Isolasi dan Identifikasi Bakteri Gram Negatif pada Uterus Sapi Aceh yang Mengalami Repeat Breeding
Jurnal Agripet, 2020 ABSTRAK. Penelitian ini bertujuan mengetahui jenis bakteri Gram negatif pada uterus sapi Aceh yang mengalami kawin berulang. Dalam penelitian ini digunakan enam ekor sapi Aceh betina yang terdiri atas tiga ekor sapi fertil (K1) dan tiga ekor yang ...
Indi Rafika +4 more
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Journal of Basic Medical Veterinary, 2020 Repeat Breeding is an adult cattle which have normal estrous cycle and clear signs of estrous but did not get pregnant when it got breed by natural mating or artificial insemination.
Muharam Subagio +5 more
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Causes of Fertilization Failure in Repeat Breeding Cattle
Journal of Dairy Science, 1968 Abstract One hundred and four ova were recovered from 150 cows (69.3%), and 58 of them were fertilized (55.8% of the ova). The fertilization rate was significantly lower (48.5%) for cows bred during the first eight hours of heat than for those bred 16 hours later (68.6%). Breeding twice during the heat period (during the first eight hours and again 16
A P, Graden +3 more
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Current Insights in the Repeat Breeder Cow Syndrome
Animals, 2023 Cows can have difficulties becoming pregnant, and in certain cases, these reproductive failures do not have an evident cause. Furthermore, when these failures are repeated three or more times with estrous cycles of normal duration and in the absence of ...
Carlos Carmelo Pérez-Marín +1 more
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Characterisation of the Repeat Breeding Syndrome in Swedish Dairy Cattle [PDF]
Acta Veterinaria Scandinavica, 2002 Repeat breeding (RB), defined as cows failure to conceive from 3 or more regularly spaced services in the absence of detectable abnormalities, is a costly problem for the dairy producer. To elucidate the occurrence of RB in Swedish dairy herds and to identify risk factors of the syndrome totally 57,616 dairy cows in 1,541 herds were investigated based ...
Emanuelson U, Gustafsson H
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Journal of Basic Medical Veterinary, 2023 This study aims to determine the relationship between factors and cases of repeated breeding in beef cattle in Klabang District, Bondowoso Regency. Beef cattle farming in Klabang District, Bondowoso Regency is currently experiencing problems in meeting ...
Mohammad Miftahur Rofiqi +2 more
doaj +1 more source
Repeatability of Breeding Parameters in Arctic Skuas
Journal of Avian Biology, 1998 Established pairs of Arctic Skuas Stercorarius parasiticus showed high repeatability in clutch volume (both within and between years), moderate repeatability in laying dates, but low repeatability in chick growth. Males that changed partner showed no repeatability in clutch volume or chick growth but did show repeatability in laying date, whereas ...
R. A. Phillips, R. W. Furness
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