Performance and blood parameters of Holstein/Zebu crossbred heifers fed with two tannins sources

The present research objective was to evaluate the performance and blood parameters of lactating cows fed with a diet of two tannin sources, based on sorghum (condensed tannin) with increasing concentrations of tannic acid (hydrolyzable tannin’s). Increasing levels of tannic acid in a sorghum-based diet for five Holstein/Zebu crossbred lactating cows were subject to a 5 × 5 Latin square experimental design. To assess the effect on cow intake, digestibility, milk production, and blood parameters. All cows received 9.87 kg/DM of corn silage as roughage and 6.38 kg of concentrate consisting of 2.58 kg/DM of ground sorghum 0.87 kg/DM of cornmeal 1.32 kg/DM of soybean bran 0.44 kg/DM of wheat bran 0.2 kg/ DM of urea and 0.18 kg/ DM of mineral mixture. Diet 1 (control) contained low-tannin sorghum and the other diets contained high-tannin sorghum. The levels of tannic acid added to the diets were established based on the quantity of condensed tannin in high-tannin sorghum. Thus, diets 2, 3, 4 and 5 were supplemented with 1.5g (13.%DM), 79.5g (2.6%DM), 157.5g (3.9%DM) and 235.5g (5.2%DM) of tannic acid, totalling 0.078, 0.156, 0.234 and 0.321 total tannin kg/day respectively, to assess the effect on microbial protein synthesis. The diets contained 35 kg of corn silage (roughage) and 6.40 kg of concentrate. The natural and dry matter intake did not significantly differ between groups, except for ether extract (EE) intake that significantly differed. The DM apparent digestibility, crude protein, EE, neutral detergent fiber, total carbohydrate, and non-fibrous carbohydrate did not differ (P > 0.05) with the increase in dietary tannin supplementation. The GOT levels increased linearly. The blood glucose, triglyceride, and cholesterol (total, LDL and HDL) levels did not significantly differ. Hemoglobin showed a significant difference. No significant difference in urea, creatinine and uric acid occurred. Diets using two tannins sources supplementation caused no decrease in the dietary intake or digestibility in the animals. The GOT level changed significantly, showing linear behavior, however below the toxicity level, without any change in the other blood parameters. Milk production decreased with the increase in dietary tannin supplementation.

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Use of dried waste of cassava starch extraction for feeding lactating cows

Anais da Academia Brasileira de Ciências ◽

10.1590/0001-3765201520140220 ◽

2015 ◽

Vol 87 (2) ◽

pp. 1101-1111 ◽

Cited By ~ 3

Author(s):

TATIANE FERNANDES ◽

MAXIMILIANE A. ZAMBOM ◽

DEISE D. CASTAGNARA ◽

LEILIANE C. SOUZA ◽

DAIANE O. DAMASCENO ◽

...

Keyword(s):

Milk Production ◽

Dry Matter ◽

Blood Parameters ◽

Cassava Starch ◽

Nutrient Digestibility ◽

Dry Matter Intake ◽

Acid Detergent Fiber ◽

Total Carbohydrate ◽

Daily Production ◽

Lactating Cows

The aim of this study was to determine the best level of utilization of dried waste of cassava starch extraction (WCSEd) as a substitute for corn for lactating cows. Four lactating cows were fed diets with increasing levels (0%, 33%, 66% and 100%) of WCSEd as a substitute for corn. The intake and digestibility of dry matter and nutrients, milk production and composition, blood parameters of glucose and urea and microbial synthesis of the diets were evaluated. There was a reduction in dry matter intake, organic matter, ether extract and total carbohydrate, and increased intake of acid detergent fiber. Nutrient digestibility was not affected while the synthesis of microbial protein increased. These changes resulted in reduced milk production, without altering the efficiency of production or the constituents of milk, with a decreasing effect on daily production of lactose, solids and minerals. Metabolic parameters, glucose and urea nitrogen in plasma, remained within appropriate levels. The dried residue from the extraction of cassava starch can be used as feed for dairy cows to replace up to 100% of the corn ration. However, its use promotes a reduction in intake of dry matter and nutrients as well as a reduction in the production of milk, with impacts on the profitability of the product.

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ALFALFA FED AS FORMIC-ACID-TREATED SILAGE, DEHYDRATED PELLETS OR HAY IN MIXED RATIONS WITH CORN SILAGE FOR LACTATING COWS

Canadian Journal of Animal Science ◽

10.4141/cjas80-112 ◽

1980 ◽

Vol 60 (4) ◽

pp. 945-952 ◽

Cited By ~ 5

Author(s):

J. R. LESSARD ◽

L. J. FISHER

Keyword(s):

Formic Acid ◽

Milk Production ◽

Milk Fat ◽

Crude Protein ◽

Rumen Fluid ◽

Protein Digestibility ◽

Corn Silage ◽

Neutral Detergent Fiber ◽

Feeding Trial ◽

Lactating Cows

Alfalfa was conserved as formic-acid-treated silage, dehydrated and pelleted forage and as field-cured hay, and used with and without corn silage for a digestibility trial with sheep. Digestibility of dry matter (DM) was higher for hay than for dehydrated forage but not higher than for silage. Crude protein digestibility was higher for silage and for hay than for dehydrated alfalfa. Acid detergent fiber (ADF) digestibility was lowest on dehydrated forage while hemicellulose digestibility was highest. The inclusion of corn silage in the diets increased digestibilities of DM, energy, hemicellulose and neutral detergent fiber (NDF) but decreased crude protein, and ADF digestibilities. A feeding trial using 20 lactating cows in a four-period changeover design compared silage, hay and dehydrated alfalfa, each in combination with corn silage as forage sources. A corn silage control was also used. Concentrate was fed at a ratio of 1 kg for each 4 kg of milk produced. Cows fed hay or pellets consumed more forage DM than cows fed only silages, but milk production was the same for the three alfalfa sources. Milk fat content was depressed by 0.5 percentage units in the milk of cows fed pellets. Efficiency of utilization of digestible energy (DE) and protein for milk production was higher for the alfalfa silage treatment than for hay or pellets. A lower acetic acid and a higher propionic acid concentration was measured in the rumen fluid of cows fed pellets than for cows.

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Chemical composition of corn silage produced by scientific studies in Brazil - A meta-analysis

Semina Ciências Agrárias ◽

10.5433/1679-0359.2017v38n1p503 ◽

2017 ◽

Vol 38 (1) ◽

pp. 503 ◽

Cited By ~ 1

Author(s):

Pagiel Bernardi Zardin ◽

João Pedro Velho ◽

Clóves Cabreira Jobim ◽

Dileta Regina Moro Alessio ◽

Ione Maria Pereira Haygert-Velho ◽

...

Keyword(s):

Chemical Composition ◽

Meta Analysis ◽

Corn Silage ◽

Neutral Detergent Fiber ◽

Research Groups ◽

Production Methods ◽

Significant Difference ◽

The Mean ◽

Silage Production ◽

High Level

The objective of the present study was to perform a meta-analysis that compared the chemical composition of corn silage produced for different experimental purposes, i.e., by research groups that studied corn silage (SCS) or by research groups that only used corn silage (UCS) as a form of roughage. We analyzed 203 papers that were published between January 1994 and December 2014 and contained a total of 647 treatments and the analysis of 1701 silos. We found a significant difference (P < 0.0001) in the dry matter (DM) content of SCS silage (33.00%) and that of UCS silage (30.64%). The DM contents of neutral detergent fiber for the SCS and UCS silage were high (54.72 and 55.14% DM, respectively) but were not significantly different from one another (P = 0.5936), and the acid detergent fiber content of the UCS silage (31.04% DM) was higher than that of the SCS silage (29.65%, P = 0.0214), which indicated that the UCS silage was less digestible than the SCS silage. This was also corroborated (P = 0.0064) by the mean content of total digestible nutrients (64.18% DM) in the UCS silage, which likely results from the lower level of care taken when using standard silage production methods, compared to that taken by SCS researchers. Therefore, we concluded that the corn silage produced by research groups in Brazil are not analyzed in full and that, as a result, there is a paucity of important information, such as the content of organic acids. In addition, we also found that corn silage produced in Brazil contains a high level of neutral detergent fiber.

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RESPONSE OF LACTATING COWS TO THE INTRAVENOUS INFUSION OF AMINO ACIDS

Canadian Journal of Animal Science ◽

10.4141/cjas72-043 ◽

1972 ◽

Vol 52 (2) ◽

pp. 377-384 ◽

Cited By ~ 48

Author(s):

L. J. FISHER

Keyword(s):

Amino Acids ◽

Amino Acid ◽

Milk Production ◽

Milk Protein ◽

Corn Silage ◽

Protein Yield ◽

Plasma Amino Acids ◽

Lactating Cows ◽

Limiting Amino Acid ◽

High Level

High, low, and zero quantities of methionine, histidine, or lysine were infused intravenously into lactating cows fed a corn–corn silage–urea ration to assess whether any of these amino acids were limiting for milk production. Feed intake was significantly higher (P < 0.05) with the low level of methionine infusion than with either the high level or saline infusions. Milk yield was not affected (P > 0.05) by any treatments, but protein yield was significantly greater (P < 0.05) with the low than with the high or zero levels of infusion of methionine, and the infusion of either level of histidine significantly decreased (P < 0.05) milk protein yield compared with zero level of infusion. The changes in levels of plasma amino acids that occurred during these studies have been interpreted as implying that methionine was the first limiting and either valine, leucine, or isoleucine was the second limiting amino acid for milk production.

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Dry matter concentration and corn silage density: Effects on forage quality

Tropical Grasslands - Forrajes Tropicales ◽

10.17138/tgft(8)20-27 ◽

2020 ◽

Vol 8 (1) ◽

pp. 20-27 ◽

Cited By ~ 1

Author(s):

Ana Maria Krüger ◽

Paulo de Mello Tavares Lima ◽

Adibe Luiz Abdalla Filho ◽

Julienne De Geus Moro ◽

Igor Quirrenbach De Carvalho ◽

...

Keyword(s):

Dry Matter ◽

Corn Silage ◽

Neutral Detergent Fiber ◽

Maturation Stage ◽

Transfer Program ◽

Total Carbohydrate ◽

Randomized Design ◽

Technology Transfer Program ◽

Physical And Chemical ◽

Matter Basis

Considering the hypothesis that density and dry matter (DM) concentration may be used as indicators of silage nutritional quality, the aim of the present study was to determine density and maturation stage (i.e. DM concentration) of corn silages under farm conditions in Brazil, establishing relationships between density and physical and chemical characteristics. In a completely randomized design, 20 bunkers of corn silage, each from a different farm, were used for data collection. Using a coring machine, 5 samples of silage were extracted from an exposed face of each silo and samples were analyzed for density of compaction, plus concentrations of DM, crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), total digestible nutrients (TDN), total carbohydrate (TC), non-fiber carbohydrate (NFC) and starch (STA), as well as electrical conductivity. There was significant variation in many of the parameters measured with the greatest variation in density on a natural matter basis. Negative correlations were observed between percentages of DM, NDF and ADF in the silage and silage density on a natural matter basis (P<0.05). On the other hand, DM% was positively correlated with concentrations of STA, TDN and TC (P<0.05). Density on a DM basis showed positive correlation with STA but was negatively correlated with NDF and ADF (P<0.05) indicating that the more fibrous material is harder to compact. A technology transfer program seems warranted to inform Brazilian farmers of these findings and the importance of harvesting forage at a stage of growth when quality would be better to increase the probability of achieving adequate compaction of the ensiled material and hence better quality of material at feeding out.

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Corn Silage, Meta-Analysis of The Quality and Yield of Different Regions in the World

10.20944/preprints202010.0094.v1 ◽

2020 ◽

Author(s):

Isidro García-Chávez ◽

Edgar Meraz-Romero ◽

Octavio Castelán-Ortega ◽

Joob Zaragoza Esparza ◽

Jorge Osorio Avalos ◽

...

Keyword(s):

Milk Production ◽

Dry Matter ◽

Plant Density ◽

Sugar Content ◽

Soluble Sugar ◽

Energy Resource ◽

Corn Silage ◽

Neutral Detergent Fiber ◽

Energy Concentration ◽

The World

Corn silage (Zea mays L.) is the most widely used energy resource in the diets of dairy cattle around the world; it stands out for its higher biomass yields, good palatability, homogeneous quality at harvest and ease of silage due to its higher soluble sugar content. It was carried out a search of studies related to dry matter yield (ton ha-1), population density (plant density ha-1), dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), non-fibrous carbohydrates (NFC), organic matter (OM), DM digestibility (DMD) and neutral detergent fiber digestibility (NDFD) and milk production per hectare (kg of milk ha-1) that was determined using MILK2006®. It was carried out a cluster analysis (CL, PROC CLUSTER) obtaining six groups of corn silage: CL1: "Starch", which included DMD, DFDN, TDN1xDM, Mega calories per kg of DM and kg of milk/ton/DM; CL2: "Fats" which included TDN1xMS, Mcal/kg/DM and kg of milk/ton/DM; CL3: "Dry Matter", conformed only by DFDN; CL4: "Plant Density" including Yield of DM ha-1 and Milk Production ha-1; CL5: "Neutral Detergent Fiber" and CL6: "Raw Protein". It is concluded that CL1 was characterized by a higher DMD, DFND, CNF and starch that allow a higher TNDx1DM and an energy concentration (Mcal/kg/DM) that shows a higher milk production (kg of milk/ton/DM ha-1). The characteristics of CL2 with higher EE, allow a higher TNDx1DM and an energy concentration (Mcal/kg/DM) with a higher milk production (kg of milk/ton/DM ha-1).

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Reducing dairy data inconsistency through Regional Modeling Approach (RMA): a case from North-Western part of Bangladesh

Bangladesh Journal of Animal Science ◽

10.3329/bjas.v49i2.53221 ◽

2021 ◽

Vol 49 (2) ◽

pp. 128-141

Author(s):

MM Uddin ◽

A Akter ◽

M Tanzin ◽

MN Sultana ◽

ABM Khaleduzzaman ◽

...

Keyword(s):

Milk Production ◽

Regional Level ◽

The Other ◽

Research Network ◽

Regional Modeling ◽

National Data ◽

Modeling Approach ◽

Lactating Cows ◽

Data Inconsistency ◽

North Western

In Bangladesh, the transformation of dairy farming from livelihood-oriented to enterprise-driven farming system might require deeper understanding on the regional differences in terms of regional potential for further dairy development. This, however, entails detailed data on dairy farm at regional level. Since the data are relatively very scarce in one hand and on the other hand, even available, are contradicting among various sources in terms of data accuracy and precision, the application of the regional modeling on the data and extrapolates to the national data and vice-versa is one of the ways to identify the possible options to improve the data availability and quality. Considering this, the current study was undertaken to assess the data inconsistency by comparing the dairy herd structure and its milk production at regional level and propose a validation tool to arrive at the national data by using the regional findings. The International Farm Comparison Network (IFCN) Regional Modeling Approach (RMA) along with the locally developed Integrated Dairy Research Network (IDRN) farm model was used. The primary data was collected from three divisions (9 districts) from the North-Western part of the country. The results revealed that proportion of household farm dominates over family and business farm while considering the total dairy cow as unit for defining the farm type. The share of the cross bred cows to the local cows is 74.6% and 24.4%, respectively. However, the proportion of lactating cows over dry cows and heifer seems to be higher in local cows (48.8%) than cross breed cows (34.2%). The average milk production for all regions is 4.49 lit/day/cow while that for cross breed is 6.23 lit and local 1.71 lit/day/cow. Using regional model and its coefficient on average milk production, herd composition, proportion of lactating cows on total milk production of DLS and IDRN revealed that IDRN new model estimates 36.5% lower milk than the DLS in 2019 and 33.5% lower in 2018. The IDRN version 1.0 and 2.0 model difference was found to 15.4% and 18.3% lower for 2018 and 2019, respectively. The model setup, calibration and validation are time-demanding and challenging tasks for these large set of data, given the scale intensive data requirements, and the need to ensure the reliability data from multiple regions. This study concludes that regional modeling is quite useful for validating the regional share of the milk production and national milk production. However, this study would recommend for using standardized for data collection, validation and thus conducting further study on the other regions and finally including all regions of the country. Bang. J. Anim. Sci. 2020. 49 (2): 128-141

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11 Invivo-derived embryo pregnancy rates at Maddox Dairy from 2008 to 2018

Reproduction Fertility and Development ◽

10.1071/rdv32n2ab11 ◽

2020 ◽

Vol 32 (2) ◽

pp. 130

Author(s):

D. Demetrio ◽

A. Magalhaes ◽

M. Oliveira ◽

R. Santos ◽

R. Chebel

Keyword(s):

Pregnancy Rate ◽

Embryo Transfer ◽

Milk Production ◽

Pregnancy Rates ◽

The Other ◽

Lactating Cows ◽

June July August ◽

June July ◽

Management Changes ◽

July August September

Maddox Dairy, located in Riverdale, CA, USA, is a Holstein herd that milks 3500 cows with a 305-day mature-equivalent milk production of 12 800 kg, and they have been producing high genetic animals by embryo transfer (ET) since the early 1980s. Invivo-derived embryos from Holstein donors were transferred fresh (grade 1 or 2) or frozen (grade 1), at morula (4), early blastocyst (5), or blastocyst (6) stage, to virgin heifers (VH, natural oestrus, 13-15 months old) or lactating cows (LC, Presynch-Ovsynch, 86 days in milk, first or second lactation) 6 to 9 days after oestrus. Pregnancy diagnosis was done by transrectal ultrasonography at 32-46 days in VH and by the IDEXX PAG test at 30 days in LC. June, July, August, September, and October were called critical months (first service AI conception rate drops below 44%) and compared with the other months. The data from 32 503 ETs between January 2008 and December 2018 are summarised on Table 1. Pregnancy rates (PR) are lower for LC recipients than for VH. Embryo transfers performed 7 or 8 days after oestrus had higher PR in both types of recipients and embryos, but Day 6 and 9 oestrus are also used with fair results. The season does not seem to affect PR. There is not enough difference in the combination of stage and days from oestrus for invivo-derived embryos. These numbers do not belong to a planned experiment. Several management changes during the years were made, which make it very difficult to apply statistical methods to analyse the data correctly. They are used as a tool to make decisions in an attempt to improve future results. Table 1.Pregnancy rate (PR) of virgin heifers (top) and lactating cows (bottom)-fresh (SH) and frozen (OZ) invivo-derived embryo transfer1 Heat-months SH-ST4 SH-ST5 SH-ST6 SH-All OZ-ST4 OZ-ST5 OZ-ST6 OZ-All PR% n PR% n PR% n PR% n PR% n PR% n PR% n PR% n Heifers 6 d-CM 62 934 66 243 68 69 63 1246 56 473 58 219 62 42 57 734 6 d-OM 62 1623 67 489 69 211 64 2323 56 600 55 296 48 137 55 1033 6 d-T 62 2557 67 732 69 280 63 3569 56 1073 57 515 51 179 56 1767 7 d-CM 64 1506 68 495 67 221 65 2222 60 822 62 340 63 156 61 1318 7 d-OM 66 2723 68 1021 69 510 67 4254 57 1120 59 581 57 231 58 1932 7 d-T 66 4229 68 1516 69 731 67 6476 58 1942 60 921 60 387 59 3250 8 d-CM 65 1348 64 518 67 322 65 2188 59 595 64 258 63 108 61 961 8 d-OM 66 2166 68 886 70 510 67 3562 61 770 60 364 51 130 60 1264 8 d-T 66 3514 67 1404 69 832 66 5750 60 1365 62 622 56 238 60 2225 9 d-CM 60 109 56 43 70 20 60 172 60 5 33 6 50 4 47 15 9 d-OM 58 129 63 57 60 40 60 226 63 16 50 18 75 4 58 38 9 d-T 59 238 60 100 63 60 60 398 62 21 46 24 63 8 55 53 All-CM 64 3897 66 1299 67 632 65 5828 58 1895 61 823 63 310 60 3028 All-OM 65 6641 67 2453 69 1271 66 10 365 58 2506 58 1259 53 502 58 4267 All-T 65 10 538 67 3752 69 1903 66 16 193 58 4401 60 2082 57 812 59 7295 Lactating cows 6 d-CM 54 265 48 86 50 12 53 363 38 141 31 77 50 10 36 228 6 d-OM 49 463 52 203 45 56 50 723 46 101 48 54 59 27 48 182 6 d-T 51 728 51 289 46 68 51 1086 41 242 38 131 57 37 42 410 7 d-CM 54 755 59 274 56 103 55 1137 43 928 48 450 43 192 45 1570 7 d-OM 55 914 66 367 54 109 58 1393 46 1052 45 564 47 353 46 1969 7 d-T 55 1669 63 641 55 212 57 2530 45 1980 46 1014 46 545 45 3539 8 d-CM 63 252 68 82 76 33 65 368 48 219 56 80 42 33 50 332 8 d-OM 61 257 64 161 53 47 61 466 50 191 53 77 56 16 51 284 8 d-T 62 509 65 243 63 80 63 834 49 410 55 157 47 49 50 616 All-CM 56 1272 58 442 60 148 57 1868 44 1288 47 607 43 235 45 2130 All-OM 55 1634 62 731 51 212 56 2582 47 1344 46 695 48 396 47 2435 All-T 55 2906 60 1173 55 360 57 4450 45 2632 47 1302 46 631 46 4565 1ST=stage; CM=critical months (June, July, August, September, and October); OM=other months.

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FACTORS INFLUENCING DRY MATTER INTAKE AND UTILIZATION OF CORN SILAGE BY LACTATING COWS

Canadian Journal of Animal Science ◽

10.4141/cjas68-027 ◽

1968 ◽

Vol 48 (2) ◽

pp. 207-214 ◽

Cited By ~ 7

Author(s):

L. J. Fisher ◽

V. S. Logan ◽

L. S. Donovan ◽

R. B. Carson

Keyword(s):

Body Weight ◽

Moisture Content ◽

Milk Production ◽

Dry Matter ◽

Energy Content ◽

Corn Silage ◽

Dry Matter Intake ◽

Factors Affecting ◽

Lactating Cows ◽

Factors Influencing

Moisture content, hay supplementation and energy content of corn silages were studied as factors affecting dry matter (DM) intake and utilization by lactating cows. In experiment I, a two-week delay in date of harvest resulted in an increase in DM content of silage for the two varieties of corn, but this was associated with significantly greater (P < 005) DM intake and fat-corrected milk production for only the earlier-maturing variety (Pride 5). Harvest date had no influence on solids-not-fat (SNF) content of the milk or body weight, but silage from Pride 5 corn resulted in a significantly (P < 0.05) higher SNF content and greater loss in body weight. In experiment II, feeding 4.7 kg of hay per day significantly reduced (P < 0.05) silage dry-matter intake and increased total ration dry-matter intake but did not change milk production or composition when compared with feeding 2.3 kg of hay per day. In experiment III, ear silage, stalk and leaf silage and hay were compared as a source of roughage for lactating cows. Total ration dry-matter intake was significantly greater (P < 0.05) for hay fed alone, but milk production was apparently higher when the ear silage was fed.

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The supplementation of maize silage for an autumn-calving dairy herd

Animal Science ◽

10.1017/s0003356100031275 ◽

1976 ◽

Vol 23 (2) ◽

pp. 191-196 ◽

Cited By ~ 6

Author(s):

R. H. Phipps ◽

D. G. Cramp

Keyword(s):

Milk Production ◽

Dry Matter ◽

Dairy Herd ◽

Fat Content ◽

The Other ◽

Maize Silage ◽

Mean Values ◽

Urea Phosphate ◽

Lactating Cows ◽

Ad Libitum

SUMMARYThirty-nine British Friesian lactating cows were used to study the effects on milk production of supplementation of maize silage offered ad libitum during two 3-hr periods each day. During weeks 11 to 24 of lactation a comparison was made of (i) no supplement, (ii) 183 g/day of a mixture (2: 1) of urea: urea phosphate, (iii) 5 kg/day of barley plus 183 g/day of the urea: urea phosphate mixture, (iv) 7 kg/day of dried grass and (v) 10 kg/day of dried grass. The corresponding treatment mean values were: milk yield (kg/day), 10·0, 9·9, 13·4, 15·1, 16·8; fat content (%), 3·43, 3·80, 3·98, 3·92, 3·61; solids-not-fat content (%), 7·95, 8·03, 8·45, 8·51, 8·49; energy intake (MJ/day), 71·2, 76·9, 130·3, 132·7, 138·6; intake of dry matter as maize silage (kg/cow per day), 7·1, 7·7, 8·3, 7·7, 6·5. With the exception of fat content, the differences between treatments 1 and 2 were not significant but the values for these two treatments were significantly lower than those for the other three treatments.

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