+ Translate

Effect of different levels of feeding during the dry period on blood serum urea concentrations in dairy cows before calving and during lactation

, : Effect of different levels of feeding during the dry period on blood serum urea concentrations in dairy cows before calving and during lactation. Zivocisna Vyroba 36(3): 219-225

Black Pied cows, in groups of 6 each, maintained during the last 60 days before calving on a low (group 1) and a high (group 2) plane of nutrition or on a low level for 45 days and increasing gradually to the high level for the last 15 days before calving. Blood was taken 3 weeks and 1 week before calving and at intervals until the 13th week of lactation for estimation of serum urea concentration. Plane of nutrition was varied with different amounts of a commercial feed mixture.

(PDF 0-2 workdays service)

Accession: 002355030

Submit PDF Full Text: Here

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Related references

Hammon, D.S.; Holyoak, G.R.; Dhiman, T.R., 2005: Association between blood plasma urea nitrogen levels and reproductive fluid urea nitrogen and ammonia concentrations in early lactation dairy cows. Two experiments were conducted to study the relationship of blood plasma urea nitrogen (PUN) concentrations with NH3, urea nitrogen, K, Mg, P, Ca, and Na concentrations in fluid of preovulatory follicles (experiment 1) and the relationships of PUN...

Kennedy, E.; O'Donovan, M.; O'Mara, F.P.; Murphy, J.P.; Delaby, L., 2007: The effect of early-lactation feeding strategy on the lactation performance of spring-calving dairy cows. The objective of this study was to establish the influence of daily herbage allowance (DHA) and supplementation level offered to spring-calving dairy cows in early lactation on animal performance throughout lactation. Sixty-six Holstein-Friesian...

Anonymous, 2007: Glucose, insulin and total lipid blood serum concentrations in the high-yielding Holstein dairy cows during dry period and early lactation

Gehlon, M.S.; Sekhon, G.S., 1966: Effect of age at first calving on first lactation yield, first lactation length, first dry period and first inter-calving period in Hariana cows. Data were analysed on 203 Harianas calving for the first time between 1950 and 1964. Average age at 1st calving was 57.41 +or- 0.33 mths., all but 2 animals falling in the range 31-85 mths. The av. 1st-lactation milk yield was 2317.34 +or-203.69 l...

Rowlands, G.J., 1978: Changes in concentrations of serum albumin in dairy cows at calving and their possible significance in relation to milk yield and fertility during lactation. Data from 3 studies are presented which suggest that some cows are able to maintain stable serum albumin concn. at calving, while other cows suffer a decrease. This appears to be an individual characteristic, not necessarily related to level of pr...

Sato H.; Hanasaka S.; Imamura T., 1981: Changes in plasma glucose lactate lipids and urea levels during lactation period in dairy cows. In 24 dairy cows (1st-6th lactation) blood samples were taken at prepartum, 2 wk postpartum and thereafter at 4 wk inintervals until dry off. Plasma glucose, lactate, free fatty acid (FFA), triglyceride (TG), total cholesterol (T .cntdot. Ch) and...

Panigrahi, B.; Pandey, H.N.; Pattanaik, A.K., 2006: Effect of different feeding-levels in the dry period on pre- and post-partum serum biochemistry of crossbred dairy cows. The pre- and post-partum metabolic profiles of crossbred dairy cows (24) as influenced by 3 different prepartum feeding managements were assessed. The dietary treatments included feeding of either 3.0 kg concentrate/head/d throughout the 60d pre-p...

Grainger C.; Wilhelms G.D.; Mcgowan A.A., 1982: Effect of body condition at calving and level of feeding in early lactation on milk production of dairy cows. Two experiments were carried out to measure effects of body condition at calving and different levels of feeding after calving on milk production and subsequent reproduction. In experiment 1, which was conducted in 2 consecutive years, 162 cows (7...

Bhan, C.; Prasad, J., 1985: Effect of season of calving on milk yield, fat production, lactation length and dry period of some cross bred cows of A.A.I. dairy farm. Records from Red Sindhi (RS) crossbreds 25 or 50% Jersey or Brown Swiss (BS) on the farm of the authors' institute during 1934-1972 were analysed. Calving season did not significantly affect milk yield, fat yield, lactation length or dry peri...

Anonymous, 1949: Concentrations of various constituents in blood of dairy cows during stages of terminal gestation and initial lactation I Effect of prepartal diet on serum tocopherols