Open Access. Powered by Scholars. Published by Universities.®
- Institution
- Keyword
-
- BOVINE MAMMARY DEVELOPMENT (2)
- Body Composition (2)
- Lactation (2)
- Sexual Maturation (2)
- Weight Gain (2)
-
- Adipose Tissue (1)
- Aging (1)
- Animal Nutritional Physiological Phenomena (1)
- Arthropod (1)
- Biomechanics (1)
- Blaberus discoidalis (1)
- Body Constitution (1)
- Breeding (1)
- Cattle (1)
- Cockroach (1)
- Diet (1)
- Dietary Proteins (1)
- Electromyography (1)
- Insect (1)
- Locomotion (1)
- Mammary Glands Animal (1)
- Muscle (1)
- Neural control (1)
- Pregnancy (1)
- Proteins (1)
- Random Allocation (1)
- Work loop (1)
Articles 1 - 4 of 4
Full-Text Articles in Physiology
Short Communication: Relationship Between Body Growth And Mammary Development In Dairy Heifers, L F. Silva, M J. Vandehaar, Brian K. Whitlock, R P. Radcliff, H A. Tucker
Short Communication: Relationship Between Body Growth And Mammary Development In Dairy Heifers, L F. Silva, M J. Vandehaar, Brian K. Whitlock, R P. Radcliff, H A. Tucker
Faculty Publications and Other Works -- Large Animal Clinical Sciences
Our objective was to determine if prepubertal rate of body weight (BW) gain, independent of diet, was related to mammary development of dairy heifers. Data from two studies recently conducted at Michigan State University were used to identify factors, within a dietary treatment group, that would account for variation in first lactation milk production or amount of mammary parenchymal DNA at the time of puberty. Factors analyzed for variation in milk production during first lactation were: postpartum BW, prepubertal BW gain, gestational BW gain, postpartum BW gain, body condition score (BCS) at breeding, and BCS at calving. Factors analyzed for …
Effect Of Dietary Protein On Prepubertal Mammary Development In Rapidly Growing Dairy Heifers, Brian K. Whitlock, M J. Vandehaar, L F. Silva, H A. Tucker
Effect Of Dietary Protein On Prepubertal Mammary Development In Rapidly Growing Dairy Heifers, Brian K. Whitlock, M J. Vandehaar, L F. Silva, H A. Tucker
Faculty Publications and Other Works -- Large Animal Clinical Sciences
The objective was to determine whether increased dietary protein would enhance mammary development in prepubertal heifers fed for rapid body growth (1.2 kg/d). Fifty-four Holstein heifers (weighing approximately 134 kg) were assigned to one of three treatments. Heifers were fed a total mixed ration with metabolizable energy at 2.85 Mcal/kg and metabolizable protein at low, standard, or high concentrations (37, 41, or 44 g/Mcal of metabolizable energy, respectively) from 3.5 mo of age until slaughter at approximately 46 d after puberty. Heifers fed low, standard, and high protein gained 1130, 1170, and 1180 g/d, respectively. Dietary protein did not affect …
A Motor And A Brake: Two Leg Extensor Muscles Acting At The Same Joint Manage Energy Differently In A Running Insect, Anna N. Ahn, Robert J. Full
A Motor And A Brake: Two Leg Extensor Muscles Acting At The Same Joint Manage Energy Differently In A Running Insect, Anna N. Ahn, Robert J. Full
All HMC Faculty Publications and Research
The individual muscles of a multiple muscle group at a given joint are often assumed to function synergistically to share the load during locomotion. We examined two leg extensors of a running cockroach to test the hypothesis that leg muscles within an anatomical muscle group necessarily manage (i.e. produce, store, transmit or absorb) energy similarly during running. Using electromyographic and video motion-analysis techniques, we determined that muscles 177c and 179 are both active during the first half of the stance period during muscle shortening. Using the in vivo strain and stimulation patterns determined during running, we measured muscle power output. …
Energetics Of Free-Ranging Seabirds, Hugh I. Ellis, Geir Wing Gabrielsen
Energetics Of Free-Ranging Seabirds, Hugh I. Ellis, Geir Wing Gabrielsen
Biology: Faculty Scholarship
No abstract provided.