- Study guides, Class notes & Summaries

What is the pregnancy status of low progesterone? - Answer Not pregnant What is the cyclicity status of low progesterone? - Answer Not cycling What is the pregnancy status of high progesterone? - Answer Pregnant What is the cyclicity status of high progesterone? - Answer cycling What are the progesterone levels of a cow in heat? - Answer low progesterone What are PAGs? - Answer pregnancy-associated glycoproteins, and are used for the detection of pregnancy Wha...

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5 pages

Written in 2026/2027

Grade A+

COCOSOLUTIONS

Largest cost in Dairy Heifer Production? - Answer Nutrition/Feeding 2nd Largest Cost in Dairy Heifer Production? - Answer Replacement Heifers When is Timed AI good? - Answer When estrous detection is less than 70% because timed AI does not require ED When do we want puberty in dairy heifers? - Answer 9-10 months of age/260-280 kg, feeding and body weight are important factors for onset of puberty When do we want 1st AI? - Answer 3rd estrous When do we want pregnancy...

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9 pages

Written in 2026/2027

Grade A+

COCOSOLUTIONS

What is the close up period? (Cows) - Answer last 3 weeks before calving - moved to maternity pens why do reproductive management strategies change according to categories? - Answer the reproductive scenarios are different to fit the needs of the animals - heifers = still growing lactating cow = in process of lactation define puberty within dairy cows - Answer first ovulation followed by a REGULAR luteal phase most important factor to puberty - Answer body weight - h...

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27 pages

Written in 2026/2027

Grade A+

COCOSOLUTIONS

Conceptus - Answer embryo or fetus + extra embryonic membranes Ootid - Answer fertilized egg with two pronuclei Blastomere - Answer embryonic development starts with cellular divisions (cleavage) into cells called Morula - Answer will then undergo first round of cell differentiation and formation of ICM and trophectoderm ICM - Answer inner cell mass: will from embryo proper Trophectoderm - Answer will form structure around blastocyst = placenta Hatching proces...

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18 pages

Written in 2026/2027

Grade A+

COCOSOLUTIONS

1) What is folliculogenesis? 2) How does the oocyte develop? * - Answer 1) formation and development of ovarian follicles, which are endocrine structures that participate in the coordination of reproductive cycles and support the development of the female germ cell-the oocyte 2) oogenesis 1) What is oogenesis? 2) Oogenesis begins during? 3) What are the four phases of oogenesis?* - Answer 1) a protracted process that encompasses the differentiation and release of a mature oocyte for...

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32 pages

Written in 2026/2027

Grade A+

COCOSOLUTIONS

embryonic period of developmental biology - Answer d0-42 in cattle starts w/formation of zygote after fertilization - morulation: morula formation by cleavage of zygote - blastulation: formation of blastocyst, ICM forms embryonic disk, rest if trophectoderm, conceptus elognates when trophectoderm proliferates - gastrulation: formation of germ cell layers ends w/formation of basic structure of organs fetal period of developmental biology - Answer d43-278 (birth) in cows growth, ...

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30 pages

Written in 2026/2027

Grade A+

COCOSOLUTIONS

What characterizes an Ootid to go to a Zygote and what is this process called - Answer fusion of the two nuclei to one. called Syngamy What characterizes the change from a Zygote to a 2 cell embryo - Answer the one cell embryo will undergo cleavage and become a 2 cell What are 7 stages of early embryonic development - Answer 1. Ootid 2. Zygote 3. 2-cell embryo 4. Morula 5. Early blastocyst 6. Hatching Blastocyst 7. Hatched blastocyst What characterizes a morula - Answer ...

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28 pages

Written in 2026/2027

Grade A+

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ANSC 3040 Final Questions With Complete Solution 2024 What characterizes an Ootid to go to a Zygote and what is this process called Correct Answer: fusion of the two nuclei to one. called Syngamy What characterizes the change from a Zygote to a 2 cell embryo Correct Answer: the one cell embryo will undergo cleavage and become a 2 cell What are 7 stages of early embryonic development Correct Answer: 1. Ootid 2. Zygote 3. 2-cell embryo 4. Morula 5. Early blastocyst 6. Hatching Blast...

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35 pages

Written in 2023/2024

Grade A+

SavvyMind