Results 221 to 230 of about 44,292 (263)

Energy Balances of Lactating Sows in Relation to Feeding Level and Stage of Lactation

Journal of Animal Science, 1985
Twelve crossbred sows were used in an energy balance study to estimate energetic efficiency of milk production from feed. Balances were made from 7 to 14 d and from 18 to 25 d of lactation. Two feeding levels were applied (high and low). The low level (L) was meant to supply energy slightly above maintenance, with energy needed for milk to be derived ...
Verstegen, M.W.A., Mesu, J., van Kempen, G.J.M., Geerse, C.   +3 more
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Yield and composition of milk from lactating mares: effect of lactation stage and individual differences

Journal of Dairy Research, 1990
SummaryThe yields and composition of milk from nursing mares were studied during the first two months of lactation in 11 mares of heavy breeds (784 kg). Daily yield increased from 21·7 to 24·6 kg between weeks 1 and 8 of lactation. Fat, protein, gross energy and Ca concentrations significantly decreased when lactose content increased during this period.
Doreau, Michel, M., Boulot, S., Barlet, J.P., Patureau-Mirand, Philippe   +3 more
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Behaviour of lactating sows: Influence of stage of lactation and husbandry practices at weaning

Applied Animal Behaviour Science, 1989
Abstract The effects of stage of lactation, withholding of feed and weaning method on the behaviour of 12 primiparous sows, housed in farrowing crates, were studied. The sows were observed for 24 h on Days 17 and 27 of lactation as well as on the day of weaning (Day 28). Sows spent a greater proportion of time lying down during dark than during light
A.M.B. De Passillé, S. Robert
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Relationship between the lactation curve and udder disease incidence in different lactation stages in first‐lactation Holstein cows

Animal Science Journal, 2009
ABSTRACTWe examined the relationships between the shape of the first parity lactation curve and udder disease incidence at different stages of lactation in 538 Holstein cows. Data used were first‐parity daily milk yields and treatment records. Each cow was classified according to whether or not it had had udder disease at least once over the whole ...
Takeshi, Yamazaki, Hisato, Takeda, Akiko, Nishiura, Kenji, Togashi   +3 more
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Nucleotides in canine colostrum and milk at different stages of lactation

Archives of Animal Nutrition, 2010
The aim of this study was to investigate the presence of nucleotides in canine colostrum and milk during lactation. Colostrum and milk samples of 10 healthy bitches were collected manually from mammary glands and analysed for total milk solids, crude protein and adenosine 5'-monophosphate (AMP), cytidine 5'-monophosphate (CMP), guanosine 5 ...
B. Tonini, E. Fusi, R. Rizzi, V. Bontempo   +3 more
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Effect of stage of lactation and gestation on milking-induced hormone release in lactating dairy cows

Domestic Animal Endocrinology, 2019
Three experiments were conducted to better understand why milking-induced prolactin (PRL) release decreases as lactation advances. Experiment 1 compared the effects of milking, 2-min manual stimulation of the mammary gland (without milking), or injection of 1 IU of oxytocin (without milking) on hormonal release in early lactation cows, late-lactation ...
Pierre, Lacasse, Xin, Zhao, Séverinne, Ollier   +2 more
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Intermittent suckling enables estrus and pregnancy during lactation in sows: Effects of stage of lactation and lactation during early pregnancy

Theriogenology, 2009
Previously we demonstrated that pre-ovulatory LH and post-ovulatory progesterone (P4) concentrations in plasma were low and embryo development was retarded when sows were induced to ovulate during lactation by submitting them to intermittent suckling (IS).
Gerritsen, R., Soede, N.M., Hazeleger, W., Langendijk, P., Dieleman, S.J., Taverne, M.A.M., Kemp, B.   +6 more
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The Effect of lactation number and lactation stage on cows milking parameters

2019
The aim of the research was to evaluate the influence of lactation number and lactation stage on cows milking parameters and to determine their influence on cows productivity. Cows were milked by GEA systrem „Mlone“ milking robots. We analyzed: milk yield (kg), average milk flow rates during first two minutes at 0-15, 15-30, 30-60, 60-120 s (kg/min ...
Mišeikienė, Ramutė, Tušas, Saulius, Pečiulaitienė, Nijolė   +2 more
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Acid-soluble nucleotides of human milk at different stages of lactation

Journal of Dairy Research, 1982
SUMMARYThe acid-soluble ribonucleotides of human milk were measured by enzymic and ion-exchange chromatographic procedures at different stages of lactation. Human colostrum and milk contained CMP, AMP, GMP, UMP, GDP-mannose, UDP-N-acetyl-glucosamine, UDP-N-acetyl-galactosamine, UDP-glucose, UDP-galactose, UDP and other minor nucleotides.
A, Gil, F, Sanchez-Medina
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Total potentially available nucleosides of human milk by stage of lactation

The American Journal of Clinical Nutrition, 1995
Human milk-borne ribonucleotides reportedly have important physiological roles in breast-fed infants. Previous studies measured the free nucleotide content of human milk. To more fully evaluate the physiological capacity of nucleotides in human milk, we determined the monomeric and polymeric ribonucleotide and ribonucleoside content of milk pooled from
J L, Leach, J H, Baxter, B E, Molitor, M B, Ramstack, M L, Masor   +4 more
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