Effects of feeding anionic products to non-lactating dairy cows on urine pH

2003 ◽  
Vol 83 (3) ◽  
pp. 609-612 ◽  
Author(s):  
K. A. Beauchemin ◽  
G. R. Bowman ◽  
L. M. Rode ◽  
M. A. G. von Keyserlingk
Keyword(s):  
Dairy Cows ◽  
Key Words ◽  
Dairy Cow ◽  
Urine Ph ◽  
Once Daily ◽  
Urine Acidification ◽  
Lactating Dairy Cows

Anionic products (anionic salts, Bio-Chlor™, Nutri-Chlor™, and SoyChlor 16-7™ ) were fed to 12 non-lactating dairy cows and urine pH was monitored. The products differed in their effectiveness: anionic salts, Bio-Chlor, and Nutri-Chlor lowered urine pH, but SoyChlor was not effective. For cows fed once daily, checking urine pH 12 to 18 h after feeding is most likely to indicate nadir pH. Key words: Dietary cation-anion difference, urine acidification, urine pH, dairy cow, non-lactating

scholarly journals Acidification of urine by feeding anionic products to non-lactating dairy cows

2003 ◽  
Vol 83 (2) ◽  
pp. 319-321 ◽  
Author(s):  
G. R. Bowman ◽  
K. A. Beauchemin ◽  
L. M. Rode
Keyword(s):  
Dairy Cows ◽  
Key Words ◽  
Dairy Cow ◽  
Urine Ph ◽  
Total Mixed Ration ◽  
Temporal Effects ◽  
Lactating Dairy Cows

Three commercial anionic products (Bio-Chlor MM™, Bio-Chlor FR™ and SoyChlor 16-7™) were fed to non-lactating dairy cows in a total mixed ration (TMR). After the anionic products were included in the TMR at the manufacturers’ recommendations for 4-d, all products reduced urine pH below the desired threshold of 6.5. The rate at which the products reached nadir urine pH differed among the products, but once acidification was accomplished temporal effects on pH were minimal. Key words: Urine pH, dietary cation-anion difference, prepartum, dairy cow, non-lactating

The effect of asynchronous diets on the function of the rumen in the lactating dairy cow

1998 ◽  
Vol 1998 ◽  
pp. 19-19
Author(s):  
A.R. Henderson ◽  
P.C. Garnsworthy ◽  
J.R. Newbold ◽  
P.J. Buttery
Keyword(s):  
Protein Synthesis ◽  
Dairy Cows ◽  
Dairy Cow ◽  
Production Performance ◽  
Early Lactation ◽  
Microbial Protein ◽  
Nutrient Flows ◽  
Lactating Dairy Cows ◽  
Overall Efficiency ◽  
Fermentation Parameters

Sinclair et al. (1993) found that a diet formulated to be synchronous with regard to hourly release of nitrogen and energy increased microbial protein synthesis by 14% in sheep. Dairy cows in early lactation experience a shortfall of energy and protein, with available protein determining the overall efficiency of metabolism (MacRae and Lobley, 1986) and subsequent milk production. It is therefore necessary to maximise microbial protein yield during this period. In this study diets were designed for lactating dairy cows to contain the same feed ingredients, but to release nitrogen and energy in the rumen at different times. Rumen fermentation parameters, nutrient flows to the small intestine and production performance were investigated.

Replacement of soyabean meal by barley or wheat distillers grains for lactating dairy cows

2002 ◽  
Vol 2002 ◽  
pp. 108-108
Author(s):  
J.D. Sutton ◽  
D.J. Humphries ◽  
R H Phipps ◽  
M. Witt
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Dairy Cow ◽  
Present Experiment ◽  
Distillers Grains ◽  
Complete Replacement ◽  
Lactating Dairy Cows ◽  
Soyabean Meal

The complete replacement of soyabean meal by maize distillers grains (MDG) in dairy cow diets had no significant effects on milk production, rumen digestion or the supply of non-ammonia N to the duodenum (Sutton et al., 2000; Phipps et al., 2001). The present experiment was designed to extend this work by examining the response when barley (BDG) or wheat (WDG) distillers grains replaced soyabean meal.

Use of polyhalite mineral as an acidogenic ingredient for prepartum diets of non-lactating dairy cows

2019 ◽  
Vol 99 (4) ◽  
pp. 962-965
Author(s):  
Gonzalo Ferreira ◽  
Christy L. Teets ◽  
Robert J. Meakin
Keyword(s):  
Metabolic Acidosis ◽  
Dairy Cows ◽  
Urine Ph ◽  
Lactating Dairy Cows

We measured urine pH from cows fed a prepartum diet containing polyhalite mineral as an acidogenic salt. At 21 d before expected calving date (ECD), cows were transferred from the far-off to the close-up group. The polyhalite mineral was incorporated into a pelleted concentrate to provide 500 g d−1. Urine pH at −21, −14, −7, and 0 d relative to ECD was 8.26, 5.18, 5.12, and 5.15, respectively. These results indicate that a metabolic acidosis could be effectively induced when polyhalite mineral is included as an acidogenic source in close-up rations for pregnant and non-lactating dairy cows.

Effects of Ensilage and Silage Fermentation Pattern on the Intake and Performance of Lactating Dairy Cows

1994 ◽  
Vol 1994 ◽  
pp. 2-2
Author(s):  
A Cushnahan ◽  
C S Mayne
Keyword(s):  
Dairy Cows ◽  
Once Daily ◽  
Lactating Dairy Cows ◽  
Silage Fermentation ◽  
Lower Protein ◽  
Fermentation Pattern ◽  
Per Se ◽  
Cow Performance ◽  
And Performance ◽  
Forage Harvester

It is generally acknowledged that lactating dairy cows offered grass silage consume less dry matter (DM) and produce less milk with a lower protein concentration than cows offered fresh pasture. However, there is little evidence to indicate whether these effects are due to the influence of ensiling per se or to differences in herbage composition. The aims of the current experiment were to evaluate the effects of ensiling per se and silage fermentation pattern on forage intake and dairy cow performance.A perennial ryegrass sward (Lolium perenne cvs Barlenna and Talbot) was divided into 4 areas (A, B, C and D) comprising one area of 6.7 ha (area A) and three areas of 0.7 ha (areas B, C and D). Each area received a total of 361 kg N, 74 kg P2O5 and 144 kg K2O/ha over the season. From 1 June 1993, herbage was harvested once daily from areas B, C and D using a double chop forage harvester and offered to dairy cows housed indoors during weeks 1, 2 and 3 respectively (Treatment G).

INDUCTION OF CYCLIC ACTIVITY IN THE EARLY POSTPARTUM DAIRY COW

1976 ◽  
Vol 56 (3) ◽  
pp. 467-473 ◽  
Author(s):  
J. G. MANNS ◽  
G. RICHARDSON
Keyword(s):  
Dairy Cows ◽  
Dairy Cow ◽  
Saline Control ◽  
Cyclic Activity ◽  
Blood Samples ◽  
Important Constraint ◽  
Lactating Dairy Cows ◽  
Early Postpartum ◽  
Prostaglandin F ◽  
Estradiol 17Β

Twenty-five lactating dairy cows were treated with either saline (control), 500 μg gonadotropin-releasing hormone (GnRH), GnRH + 10 mg estradiol 17β (E2), E2, or GnRH + E2 + 25 mg prostaglandin F2α (PGF2α) at approximately 11 days postpartum. Blood samples were taken at the time of injection and then twice each week for about 30 days. Treatment with GnRH alone gave the largest LH peak; LH production appeared to be inhibited when E2 was given with GnRH. Plasma estrogen concentrations were above 1 ng/ml for 12 h in all animals receiving estrogen alone or in combination. None of the treatments hastened initiation of cyclic activity which began at an average of 19 days postpartum. It seems unlikely that postpartum anestrus is an important constraint to early rebreeding in dairy cows.

EVALUATION OF FOUR ON-FARM PROGESTERONE TEST KITS AS AN AID TO REPRODUCTIVE MANAGEMENT IN DAIRY COWS

1990 ◽  
Vol 70 (1) ◽  
pp. 207-210 ◽  
Author(s):  
R. RAJAMAHENDRAN ◽  
B. WONG ◽  
J. ROBINSON ◽  
J. A. SHELFORD
Keyword(s):  
Dairy Cows ◽  
Key Words ◽  
Dairy Cow ◽  
Predictive Value ◽  
Ease Of Use ◽  
Progesterone Concentration ◽  
Reproductive Management ◽  
Color Development ◽  
Test Kit ◽  
On Farm

Four on-farm progesterone kits were evaluated for ease of use, color development and accuracy. No difference (P > 0.05) was found between kits in their ability to predict progesterone status but the accuracy of all kits varied with progesterone concentration. Tests were highly effective at low or high progesterone levels, but were of little predictive value for values between these extremes. Data suggest that on-farm progesterone tests are potentially useful management aids to confirm estrus, nonpregnancy and cyclicity. Key words: Progesterone, test kit, dairy cow

Effect of monensin on meal frequency during sub-acute ruminal acidosis in dairy cows

2005 ◽  
Vol 85 (2) ◽  
pp. 247-249 ◽  
Author(s):  
D. E. Lunn ◽  
T. Mutsvangwa ◽  
N. E. Odongo ◽  
T. F. Duffield ◽  
R. Bagg ◽  
...  
Keyword(s):  
Controlled Release ◽  
Dairy Cows ◽  
Key Words ◽  
Recovery Period ◽  
Meal Frequency ◽  
Total Mixed Ration ◽  
Ruminal Acidosis ◽  
Lactating Dairy Cows ◽  
Ad Libitum ◽  
Ad Libitum Intake

Two experiments were conducted to determine the effects of monensin (Rumensin® controlled-release capsule; exp. 1 and Rumensin® Premix; exp. 2) on meal frequency during grain-induced sub-acute ruminal acidosis (SARA) in Holstein dairy cows. SARA was induced by restricting total mixed ration intake to 85% of ad libitum intake and replacing the remaining 15% with a grain pellet consisting of 50% wheat and 50% barley. In both experiments, meal frequency during SARA was lower (P < 0.05) than meal frequency during the adaptation and recovery periods. In exp. 2, monensin increased meal frequency during SARA (6.0 vs. 7.2, P = 0.04) and meal frequency during the recovery period (7.5 vs. 9.0, P = 0.004). These results suggest monensin premix may increase meal frequency in lactating dairy cows under conditions of SARA. Key words: dairy cows, monensin, ruminal acidosis, meal frequency

scholarly journals Kajian Komparatif Parameter Ekonomi (Harga Susu dan Pakan) Terhadap Efisiensi Penggunaan Teknologi Pakan Pada Usaha Sapi Perah

2014 ◽  
Vol 12 (1) ◽  
pp. 49
Author(s):  
Bayu Setya Hertanto
Keyword(s):  
Dairy Cows ◽  
Key Words ◽  
Milk Production ◽  
Dairy Farm ◽  
Quality Standard ◽  
Milk Quality ◽  
Production Parameters ◽  
Feed Cost ◽  
Lactating Dairy Cows ◽  
The Impact

<p>The objective of the study was to evaluate the impact of feed technology on changing of milk and feed price, and also its impact on efficiency of feed technology in dairy farm. In this study, fifteen lactating dairy cows were divided into 3 groups based on the feed technology. Production parameters measured were milk production and quality for 42 days, while economic parameters were milk and feed price. The highest milk production was produced by feed technology III which was Rp. 11,845 l/herd/day. The highest milk quality was resulted in by feed technology II with quality standard of fat 3.960%, SNF 8.312%, TS 12.272%, and milk density 1.029. Result showed that the lowest was by feed technology III, which was Rp. 1,143.80/l. Income Over Feed Cost (IOFC) showed that the use of feed technology III was more efficient than other feed technologies, which was Rp. 24,664.55/herd/day with the milk price of Rp. 4,207.55/l.<br />Key words: Feed technology, milk production, milk quality, milk price, feed price</p>

Impact of circulating concentrations of progesterone and antral age of the ovulatory follicle on fertility of high-producing lactating dairy cows

2012 ◽  
Vol 24 (1) ◽  
pp. 267 ◽  
Author(s):  
J. Richard Pursley ◽  
Joäo Paulo N. Martins
Keyword(s):  
Dairy Cows ◽  
Dairy Cow ◽  
Gonadotropin Releasing Hormone ◽  
Oestrous Cycle ◽  
Dairy Production ◽  
Management Issue ◽  
Lactating Dairy Cows ◽  
Ovulatory Follicle ◽  
The World ◽  
Conception Rates

Dairy cow infertility negatively affects profit of dairy production enterprises around the world, and enhancing conception rates of dairy cows is a critical management issue to resolve. It appears that conception rates of dairy cows are attenuated due to reduced progesterone concentrations in circulation during growth of the ovulatory follicle. It is not clear how reduced progesterone influences fertility, but data presented in this brief review suggest that it can be somewhat reversed through increasing concentrations of progesterone during the growth of the ovulatory follicle before luteolysis. Ovsynch protocols may be utilised to enhance progesterone concentrations through the induction of an accessory corpus luteum (CL) following the initial gonadotropin-releasing hormone (GnRH) treatment. Cows at Day 13 of the oestrous cycle with a 7-day-old accessory CL had ~50% more progesterone at the time of prostaglandin injection of Ovsynch compared with cows with only a Day 13 CL. Ovsynch can consistently induce an accessory CL following the initial GnRH treatment if cows are on Days 6 or 7 of the oestrous cycle at the time of treatment. Pre-synchrony strategies are critical to enhance the probability that cows will be on Days 6 or 7 at first GnRH treatement of Ovsynch.

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