翻动
发表于 2025-3-25 07:04:16
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Obscure
发表于 2025-3-25 07:58:35
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造反,叛乱
发表于 2025-3-25 14:01:35
https://doi.org/10.1007/978-3-030-55513-9sulin, and insulin-like growth factor-1 (IGF-1) modulate the gonadal function by influencing gametogenesis and steroidogenesis. These growth factors promote the follicular cells mitosis, survival and maturation of the oocytes, ovulation process, and luteal cells function. The effect of these metabol
剥削
发表于 2025-3-25 16:00:26
https://doi.org/10.1007/978-3-030-55724-9tion of automation and sensor-based tools for reproduction management is not possible. Traditionally, manual observation of animals for the signs of estrus detection is being practiced in developing countries, which is labor intensive and often results in reduced estrus detection efficiency and accu
Needlework
发表于 2025-3-25 22:08:42
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flammable
发表于 2025-3-26 02:06:24
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Free-Radical
发表于 2025-3-26 04:49:24
Ann W. Astell,Anne Winston-Allenand cows fail to become pregnant, because they do not show estrus (heat) or fail to conceive after showing estrus. The widely accepted techniques like artificial insemination (AI) and estrous cycle synchronization in cattle is a proof of concept that how discoveries in basic science can revolutioniz
可卡
发表于 2025-3-26 09:30:50
https://doi.org/10.1007/978-3-030-55724-9 that bovine fertility has shown a declining trend over last few decades. Analysis of the existing information indicates that dairy animals calve at a later age, conceive at very later stage of postpartum period, and the conception rate is very low. Among the several reasons for extended service per
轮流
发表于 2025-3-26 13:04:36
Richard L. Wagoner,Hallie O. Star during calving process and up to 40% of the animals suffer from uterine infection which is classified as several types such as metritis or endometritis as per severity of clinical manifestations. Abnormal calving, calving assistance, negative energy balance, and compromised immunity are some of the
适宜
发表于 2025-3-26 20:49:43
Richard L. Wagoner,Hallie O. Starast few decades. The genetic improvement can be achieved only when superior quality bulls are used for artificial insemination. Even when the superior bulls are used for cryopreservation, their spermatozoa are also prone to many damages during cryopreservation. Cryopreservation is a damaging phenome