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

MM Uddin; A Akter; M Tanzin; MN Sultana; ABM Khaleduzzaman; MR Islam; MS Palash; BB Bruemmer

doi:10.3329/bjas.v49i2.53221

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

Research Society and Development ◽

10.33448/rsd-v9i2.2150 ◽

2020 ◽

Vol 9 (2) ◽

pp. e128922150

Author(s):

Carla Giselly de Souza ◽

Severino Gonzaga Neto ◽

Lara Toledo Henriques ◽

Gherman Garcia Leal Araújo ◽

Luciana Thie Seki Dias ◽

...

Keyword(s):

Milk Production ◽

Tannic Acid ◽

Condensed Tannin ◽

Blood Parameters ◽

Corn Silage ◽

Neutral Detergent Fiber ◽

The Other ◽

Total Carbohydrate ◽

Lactating Cows ◽

Significant Difference

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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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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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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Statistical research on the fate of dietary mineral elements in dry and lactating cows: II. Magnesium

The Journal of Agricultural Science ◽

10.1017/s0021859600014623 ◽

1968 ◽

Vol 71 (2) ◽

pp. 181-188 ◽

Cited By ~ 22

Author(s):

F. Lomba ◽

R. Paquay ◽

V. Bienfet ◽

A. Lousse

Keyword(s):

Milk Production ◽

Calcium Intake ◽

Dry Matter ◽

Opposite Effect ◽

Mineral Elements ◽

The Other ◽

Statistical Research ◽

Lactating Cows ◽

Daily Milk Production ◽

Daily Milk

SUMMARYStatistical analyses were carried out on the data obtained under very strict conditions in metabolism stalls with 41 different rations fed to 127 adult non-pregnant dry cows, and with 14 other different rations fed to 35 adult non-pregnant lactating cows that had calved 2 to 6 months earlier and whose daily milk production ranged from 11 to 20 kg.The correlation between faecal and urinary losses of magnesium, magnesium in milk, digestible magnesium, and magnesium balance and the other nutritive factors of the 55 above-mentioned experimental diets have been calculated.The magnesium absorption is enhanced by increasing magnesium and calcium intake, while nitrogen and, to a lesser extent, fat, giving higher faecal losses, have an opposite effect. There is no influence at this level of lactating requirements.The urinary losses of magnesium are not related to the magnesium intake and digestibility, and the balance is thus directly proportional to the digestible amounts. But this balance is decreased when the diet contains more dry matter or energy, to the benefit of urine in dry cows. We were not able to determine whether this balance reduction also benefits the milk production in the lactating cows.Our results demonstrate that the faecal endogenous losses of magnesium can be highly variable.The balance of magnesium is frequently but not inevitably negative in cows with a daily milk production of 11–20 kg.

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Choice feeding of mid lactation dairy cows offered different levels of undegraded protein concentrate

Proceedings of the British Society of Animal Science ◽

10.1017/s0308229600034127 ◽

1998 ◽

Vol 1998 ◽

pp. 199-199

Author(s):

R.E. Lawson ◽

J.M. Forbes

Keyword(s):

Dairy Cows ◽

Milk Production ◽

Protein Level ◽

Diet Selection ◽

The Other ◽

Protein Concentrate ◽

Lactating Cows ◽

Selection Experiments ◽

Choice Feeding ◽

Different Levels

Tolkamp et al. (1996) reported that dairy cows were able to choose between complete foods with different MP:ME ratios, and it was concluded that the selection the cows made was not random. Diet selection may remove nutritional constraints on milk production if the cow can choose the appropriate protein level to attain the milk yield determined by her genotype. At a specific DUP content the diet of an individual cow will be correctly balanced. When the cow is offered two foods, one in excess of predicted requirements for DUP, the other deficient in DUP for the predicted level of production, then the cow has the opportunity to select a diet which exactly meets her requirements for DUP. Most diet selection experiments have been completed under conditions of little or no competition; the aim of the experiment was to study the effects of offering lactating cows a choice between two protein concentrates under semi-commercial conditions.

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Milking of cows in late pregnancy: milk production during this period and during the succeeding lactation

Journal of Dairy Research ◽

10.1017/s002202990003051x ◽

1992 ◽

Vol 59 (3) ◽

pp. 233-241 ◽

Cited By ~ 32

Author(s):

Bernard Rémond ◽

Alain Ollier ◽

Guy Miranda

Keyword(s):

Fatty Acids ◽

Energy Balance ◽

Milk Production ◽

Relative Proportion ◽

Late Pregnancy ◽

The Other ◽

Control Group ◽

Lactating Cows ◽

Esterified Fatty Acids ◽

Milk Performance

SummaryFifteen lactating cows were milked throughout pregnancy, and the effects on milk performance were studied during this period and during the succeeding lactation, relative to 11 conventionally managed cows (2 months dry before calving) as controls. During the last 2 months of pregnancy, only nine cows did not dry off spontaneously. Protein and fat concentrations in milk increased rapidly, but the concentration of lactose, corrected for milk yield, did not change. The ratios of individual caseins to total protein decreased with the quantity of milk produced, but only for yields below ˜ 6 kg/d. The relative proportion of κ-casein tended to decrease in the last milkings. During the succeeding lactation (first 15 weeks after calving and first 6 weeks of grazing) continuously milked cows yielded 4 kg milk/d less than the cows of the other group. The protein content of their milk was higher (2–3 g/kg depending on the period) than that of the control group, and the lactose content tended (p < 0·10) to be lower. Changes in the relative proportions of nitrogenous fractions with time were not different in the two groups. Differences between the two groups in the concentration of protein in milk, and in the concentration of glucose and non-esterified fatty acids in the plasma, suggest a better energy balance for the continuously milked cows during the succeeding lactation.

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Choice feeding of mid lactation dairy cows offered different levels of undegraded protein concentrate

Proceedings of the British Society of Animal Science ◽

10.1017/s1752756200598512 ◽

1998 ◽

Vol 1998 ◽

pp. 199-199

Author(s):

R.E. Lawson ◽

J.M. Forbes

Keyword(s):

Dairy Cows ◽

Milk Production ◽

Protein Level ◽

Diet Selection ◽

The Other ◽

Protein Concentrate ◽

Lactating Cows ◽

Selection Experiments ◽

Choice Feeding ◽

Different Levels

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HPLC Screening of Bioactives Compounds and Antioxidant Capacity of Different Hypericum Species

Revista de Chimie ◽

10.37358/rc.18.2.6095 ◽

2018 ◽

Vol 69 (2) ◽

pp. 305-309 ◽

Cited By ~ 2

Author(s):

Daniela Gitea ◽

Simona Vicas ◽

Manuel Alexandru Gitea ◽

Sebastian Nemeth ◽

Delia Mirela Tit ◽

...

Keyword(s):

Antioxidant Capacity ◽

Methanol Extract ◽

Antioxidant Properties ◽

Polyphenolic Compounds ◽

The Other ◽

The North ◽

Western Area ◽

North Western ◽

Hypericum Species ◽

Biological Actions

Our study compares the content in polyphenolic compounds and hypericin, in four species of Hypericum - H. perforatum L., H. maculatum Cr., H. hirsutum L., H. tetrapterum Fr. (syn. Hypericumacutum Mnch.) harvested from spontaneous flora in the north-western area of Transylvania, Romania. These species represent an important source of such compounds with different biological actions. After making the extracts, they were subjected to HPLC-SM analysis. The presence of rutoside in the largest amount (462.82 mg %) in the H. perforatum extract was observed, this containing most of the flavonoid heterosides. For the species H. maculatum, the presence in a much higher amount of the hyperoside (976.36 mg %) is characteristic compared to the other species. Quercetol is the best represented of the flavonoid aglycons, its concentration being the highest in H. hirsutum (659.66 mg %). The hypericin content ranges from 0.2171 g % in the H. tetrapterum extract, to 0.0314 g % in the methanol extract of H. maculatum.The highest antioxidant properties measured by FRAP method were recorded in the case of H. perforatum and H. maculatum.

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Effect of Bypass Protein on Milk Production and Economic of Lactating Crossbred Cows

Journal of AgriSearch ◽

10.21921/jas.v7i01.17633 ◽

2020 ◽

Vol 7 (01) ◽

Author(s):

RATNESH K CHOUDHARY ◽

A Saran ROY ◽

N K SINGH3 ◽

SANJAY KUMAR ◽

RAUSHAN K SINGH

Keyword(s):

Milk Production ◽

Milk Yield ◽

Crossbred Cows ◽

Lactating Cows ◽

Feed Cost ◽

Total Diet ◽

T1 And T2 ◽

Daily Milk Yield ◽

On Farm ◽

Daily Milk

An On-Farm Trial was conducted on 24 lactating crossbred cows for assessment of feeding formaldehyde treated mustard cake (bypass protein) on milk production and economic analysis of lactating cow. Cows were divided into three groups having 8 cows each, treatments were farmers’ practice (FP); (Control): The lactating animals under this group were fedas per the feeding schedule of the farmers (5 kg. dry roughage as rice straw + 6 hrs grazing as local grass and 4 kg. commercial concentrates), T1: The lactating animals under this group were fed as per farmers practicewith 12% mustard cake of total diet was provided to the cow by replacing the same amount of commercial concentrates andT2: The lactating animals under this group were fed as per farmers practicewith 12% formaldehyde treated mustard cake of total diet was provided to the cow by replacing same amount of commercial concentrates. The average daily milk yield of lactating cows under FP, T1 and T2 was 8.58, 8.82 and 9.85 kg per cow, respectively. Differences between FP and T2 were significant. The daily increase in milk yield was 1.27 kg and 1.03 kg in cows fed T2diet over the cows fed FP and T1diet, respectively. The B: C ratios for FP, T1 and T2 groups were 2.6, 3.0 and 3.3, respectively. The feed cost reduced in T2 group by Rs. 8.64 and increased milk production by 1.27 kg in respect to FP group.

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