scholarly journals Evaluation of Milk Yield and Reproductive Performance of Pure Holstein and Its F1 Crossbreds with Montbeliarde in Egypt

2021 ◽  
Vol 11 (3) ◽  
pp. 489-497
Author(s):  
Rabie Ragab Sadek ◽  
Samy Abou-Bakr ◽  
Ali Attia Nigm ◽  
Mohamed Abd El-Aziz Mohamed Ibrahim ◽  
Mohamed Magdy Badr ◽  
...  
Keyword(s):  
Milk Yield ◽  
Reproductive Performance ◽  
First Generation ◽  
Least Squares Method ◽  
Reproductive Traits ◽  
Dairy Herds ◽  
Crossbred Cows ◽  
Strategic Option ◽  
Daily Milk Yield ◽  
Daily Milk

The present study was carried out to compare the milk yield and reproductive performance of pure Holstein (HO) cows with those of their first generation (F1) crossbreds with Montbeliarde cows (MO) in four commercial dairy herds under Egyptian conditions. Data used in the current study comprised 2268 records for the first four lactations of 531 HO and 536 MO × HO F1 crossbred cows during the period between 2012 and 2020. Data were analyzed using the least squares method by XLSTAT software. The MO × HO crossbred cows were significantly superior compared with pure HO cows for 305-day milk yield, scoring 9210 ± 96 kg versus 7987 ± 149 kg. Moreover, MO × HO F1 crossbred cows had a significantly higher daily milk yield (30.0 ± 0.45 kg) than pure HO cows (25.9 ± 0.52 kg). However, pure HO cows had significantly greater days in milk (399 ± 6 days) than MO × HO crossbred cows (341 ± 5.2 days). With regard to reproductive performance, MO × HO F1 crossbred cows had significantly less number of services per conception and days open than pure HO cows (2.6 ± 0.16 vs. 3.7 ± 0.18) and (132 ± 5.2 days vs. 190 ± 6 days), respectively. However, the statistical difference between MO × HO F1 crossbred cows and pure HO cows for age at first calving was not significant (22.9 ± 0.11 vs. 23.1 ± 0.15 months, respectively). It can be concluded that under Egyptian subtropical conditions, the first generation of MO × HO crossbred cows exhibit better performance, compared to pure HO cows in milk yield and reproductive traits. These findings could provide an effective strategic option for the genetic improvement of dairy cattle in hot subtropical regions.

scholarly journals PRODUCTIVE AND REPRODUCTIVE PERFORMANCE OF FIRST CALVING CROSSBRED COWS

2021 ◽  
pp. 59-68
Author(s):  
Oleksandr Admin ◽  
Natalia Admina ◽  
Irina Filipenko
Keyword(s):  
Milk Yield ◽  
Reproductive Performance ◽  
Somatic Cells ◽  
Crossbred Cows ◽  
The Third ◽  
Holstein Bulls ◽  
Daily Milk Yield ◽  
Dairy Breed ◽  
Daily Milk

The article presents the results of studies of reproductive performance, safety and average daily milk yield of first-calf cows of the Ukrainian Red-and-White dairy breed, obtained from the Montbeliard and Holstein sire bulls in the SE "Gontarivka", Kharkiv region. It was found that the weight at the first fertilization in heifers obtained from bulls of different breeds did not practically differ, and averaged 470 kg. At the same time, the age of the first insemination and calving of the daughters obtained from the Montbeliard bulls was significantly less than of the daughters obtained from the Holstein bulls, which indicates a greater intensity of growth of crossbred heifers. The average daily milk yield of daughters of Montbeliard breed bulls for the first two months of lactation was 1.6 kg and 0.5 kg less than that of their counterparts. In the third month of lactation, the average daily milk yield of first calving cows obtained from Holstein bulls became 0.2 kg less than that of crossbred ones, and later this trend of the advantage in daily milk yield of the daughters of Holstein bulls continued. For 8 months of lactation, the milk yield of the daughters of the Montbeliard bulls was slightly less by 201.4 kg than their peers. There were no significant differences in the content of fat, protein and the somatic cells count.

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

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.

scholarly journals The effect of an organic rumen-protected fat supplement on performance, metabolic status, and health of dairy cows

2019 ◽  
Author(s):  
Diego Manriquez ◽  
Liang Chen ◽  
Pedro Melendez ◽  
Pablo Pinedo
Keyword(s):  
Milk Yield ◽  
Body Condition ◽  
Reproductive Performance ◽  
Organic Production ◽  
Metabolic Status ◽  
Organic Dairy ◽  
Milk Components ◽  
Certified Organic ◽  
Daily Milk Yield ◽  
Daily Milk

Abstract Background Negative energy balance during the transition period is a concern for both conventional and certified organic dairy systems. During early lactation, supplemental strategies are used to cope with nutrient deficiencies that are associated with impaired health, production, and reproduction. As organic certified dairies in the United States face restricted access to dietary supplements, the evaluation of products especially formulated for organic production is needed. Our objective was to assess the effect of supplementing 0.45 kg/d of an organic rumen-protected fat (RPF) on health, metabolic status, and productive and reproductive performance of organic certified Holstein cows from 1 to 150 days in milk (DIM). Two-hundred and two cows were enrolled in a randomized blocked controlled trial conducted from January to July, 2017 in a certified organic dairy located in Northern Colorado (USA). Two groups were randomly assigned to be individually supplemented with organic RPF (ORG; n = 100) or control pellets (CON; n = 102) once per day, in addition to the total mixed ration (TMR). Outcomes of interest included disease occurrence, culling, mortality, serum concentration of glucose and non-esterified fatty acids (NEFA), milk yield (kg/d) and milk components, resumption of cyclicity, time-to-first artificial insemination (AI), conception at first AI, and conception within 150 DIM. Results A significant effect for the inclusion of RPF was found in daily milk yield; RPF supplemented cows had greater milk yield (1.6 kg/d) compared to CON cows up to 150 DIM (P = 0.03). During grazing, multiparous (MP) ORG cows had greater milk yield compared to MP CON cows, whereas no effect was found in primiparous (PP) cows. Health outcomes, serum metabolite concentrations, and reproductive performance were not affected by the inclusion of RPF. Body condition loss was smaller in the ORG group up to 80 DIM; however, there was no effect on body condition during the grazing season and in the overall study period. Conclusions These results indicate that supplementation of RPF increased daily milk yield and prevented body condition loss during transition. However, RPF supplementation did not affect health, serum metabolite concentration, milk components, and reproductive outcomes.

scholarly journals Bioenergetic and ethological features of the first-calf heifers of different genotypes

2021 ◽  
Vol 4 (1) ◽  
pp. 51-55
Author(s):  
O. O. Borshch ◽  
S. Yu. Ruban ◽  
O. V. Borshch ◽  
V. M. Polishchuk
Keyword(s):  
Milk Yield ◽  
Milk Fat ◽  
First Generation ◽  
Fat Content ◽  
Exchange Energy ◽  
Brown Swiss ◽  
Daily Milk Yield ◽  
Dairy Breed ◽  
Slight Advantage ◽  
Daily Milk

The aim of this work was to study bioenergetic and ethological indicators in crossbred first-calf heifers compared to purebred first-calf heifers. The research was conducted on the first-calf heifers of Ukrainian Black-Pied dairy breed and first-generation crossbreeds obtained as a result of crossing with Brown Swiss breed, as well as, on the first-calf heifers of Ukrainian Red-Pied dairy breed and first-generation crossbreeds obtained as a result of crossing Ukrainian Red-Pied dairy with Montbéliarde breed. The purebred Black-and Red-Pied first-calf heifers prevailed over crossbreed first-calf heifers on the indicator of milk yield for 305 days of lactation by 106.45 and 218.36 kg, respectively. Accordingly, the indicators of average daily milk yield were also higher by 0.35 and 0.72 kg and the indicators of average daily milk yield adjusted by 4 % fat content per 0.15 and 0.16 kg. At the same time, the indicator of average fat content in milk prevailed in crossbreeds of Black-Pied and Brown Swiss breed by 0.08 % compared to purebred Black-Pied breeds, and in Red-Pied crossbreeds with Montbéliarde breed by 0.16 % compared to purebred Red-Pied breeds. The purebred Black-Pied first-calf heifers had an advantage by 2.04 MJ compared to crossbreeds, while the Red-Pied first-calf heifers had a slight advantage by 0.06 MJ compared to crossbreed first-calf heifers on the indicator of daily cost of exchange energy (EE). The purebred Black-and Red-Pied first-calf heifers had higher cost of exchange energy allocated with milk compared to crossbreed first-calf heifers by 0.42 and 0.82 MJ. They also had higher cost of exchange energy rates for heat products by 0.79 and 0.25 MJ. According to the energy index indicator, purebred Black - and Red-Pied first-calf heifers prevailed over crossbreeds first-calf heifers by 0.16 and 0.07 %, respectively. The same trend was observed in relation to the productive index indicator. The purebred Black-and Red-Pied first-calf heifers had a slight advantage by 0.001 and 0.002 kg adjusted by 4 % of milk fat content per 1 MJ. According to the indicators of daily behavioral reactions, no special differences between a purebred and crossbreed were found.

scholarly journals The effect of an organic rumen-protected fat supplement on performance, metabolic status, and health of dairy cows

2019 ◽  
Vol 15 (1) ◽  
Author(s):  
Diego Manriquez ◽  
Liang Chen ◽  
Pedro Melendez ◽  
Pablo Pinedo
Keyword(s):  
Milk Yield ◽  
Body Condition ◽  
Reproductive Performance ◽  
Organic Production ◽  
Metabolic Status ◽  
Organic Dairy ◽  
Milk Components ◽  
Certified Organic ◽  
Daily Milk Yield ◽  
Daily Milk

Abstract Background Negative energy balance during the transition period is a concern for both conventional and certified organic dairy systems. During early lactation, supplemental strategies are used to cope with nutrient deficiencies that are associated with impaired health, production, and reproduction. As organic certified dairies in the United States face restricted access to dietary supplements, the evaluation of products especially formulated for organic production is needed. Our objective was to assess the effect of supplementing 0.45 kg/d of an organic rumen-protected fat (RPF) on health, metabolic status, and productive and reproductive performance of organic certified Holstein cows from 1 to 150 days in milk (DIM). Two-hundred and two cows were enrolled in a randomized blocked controlled trial conducted from January to July 2017 in a certified organic dairy located in Northern Colorado (USA). Two groups were randomly assigned to be individually supplemented with organic RPF (ORG; n = 100) or control pellets (CON; n = 102) once per day, in addition to the total mixed ration (TMR). Outcomes of interest included milk yield (kg/d) and milk components, serum concentration of glucose, and non-esterified fatty acids (NEFA), resumption of cyclicity, time-to-first artificial insemination (AI), conception at first AI, and conception within 150 DIM, disease occurrence, culling, mortality. Results A significant effect for the inclusion of RPF was found in daily milk yield; RPF supplemented cows had greater milk yield (1.6 kg/d) compared to CON cows up to 150 DIM (P = 0.03). During grazing, multiparous (MP) ORG cows had greater milk yield compared to MP CON cows, whereas no effect was found in primiparous (PP) cows. Health outcomes, serum metabolite concentrations, and reproductive performance were not affected by the inclusion of RPF. Body condition loss was smaller in the ORG group up to 80 DIM; however, there was no effect on body condition during the grazing season and in the overall study period. Conclusions These results indicate that supplementation of RPF increased daily milk yield and prevented body condition loss during at 90 DIM. However, RPF supplementation did not affect health, serum metabolite concentration, milk components, and reproductive outcomes.

scholarly journals The Effect of Sex Chromatin on Some Reproductive Traits of local Sheep in Erbil

2015 ◽  
Vol 9 (2) ◽  
pp. 6-10
Author(s):  
Nihad Ahmad Ameen Ameen ◽  
Salim Omar Raoof Raoof
Keyword(s):  
Correlation Coefficient ◽  
Milk Yield ◽  
Correlation Coefficients ◽  
Reproductive Traits ◽  
High Rate ◽  
Sex Chromatin ◽  
Positive Correlation Coefficient ◽  
Daily Milk Yield ◽  
Coefficient Of Regression ◽  
Daily Milk

This study was conducted on local sheep belongs to private flock in Erbil plain during the period 4/11/2011 till 25/10/2012. The investigation included 65 local sheep to study the effect of sex chromatinfrequency on the Daily Milk Yield (DMY), weight and age of ewes in addition the calculation ofRegression and Correlation coefficients between the studied traits of local sheep. The overall means offrequency of sex chromatin (drum stick, Appenx without stick, tear drop and small club). Appearedwith normal Neutrophils were 1.897, 1.034, 1.241, 0.741 and 95.86% respectively. The overall means ofDMY was 533.6g. The results showed that there was significant (P≤0.05) in relationship to DMY, thehighest rate of DMY was shown among the sheep had sex chromatin drum stick (675. 5g), while the rateof DMY was at lowest production among the sheep which had sex chromatin of small club (425.4g). Asignificant effect of weights and age of sheep on the patterns of sex chromatin were observed. Thehighest rate of DMY among the sheep was at the age of 4 years raised high rate of sex chromatin type(drum stick). A significant(P≤0.05) positive Correlation coefficient between DMY and sex chromatintype (drum stick) with value of 0.673, while there was a negative and significant (P≤0.05). Regressioncoefficient of DMY on sex chromatin coefficient (small club ) with coefficient of Regression value (-0.074). In addition the highest value of Correlation between the DMY and sex chromatin of (drum stick)was (0.856), followed with Correlation coefficient value between type of birth and weights of ewes(0.784), while the lowest Correlation value was (-0.087) between DMY and sex chromatin of (small club).

scholarly journals The effect of an organic rumen-protected fat supplement on performance, metabolic status, and health of dairy cows

2019 ◽  
Author(s):  
Diego Manriquez ◽  
Liang Chen ◽  
Pedro Melendez ◽  
Pablo Pinedo
Keyword(s):  
Milk Yield ◽  
Body Condition ◽  
Reproductive Performance ◽  
Organic Production ◽  
Metabolic Status ◽  
Organic Dairy ◽  
Milk Components ◽  
Certified Organic ◽  
Daily Milk Yield ◽  
Daily Milk

Abstract Background Negative energy balance during the transition period is a concern for both conventional and certified organic dairy systems. During early lactation, supplemental strategies are used to cope with nutrient deficiencies that are associated with impaired health, production, and reproduction. As organic certified dairies in the United States face restricted access to dietary supplements, the evaluation of products especially formulated for organic production is needed. Our objective was to assess the effect of supplementing 0.45 kg/d of an organic rumen-protected fat (RPF) on health, metabolic status, and productive and reproductive performance of organic certified Holstein cows from 1 to 150 days in milk (DIM). Two-hundred and two cows were enrolled in a randomized blocked controlled trial conducted from January to July, 2017 in a certified organic dairy located in Northern Colorado (USA). Two groups were randomly assigned to be individually supplemented with organic RPF (ORG; n = 100) or control pellets (CON; n = 102) once per day, in addition to the total mixed ration (TMR). Outcomes of interest included disease occurrence, culling, mortality, serum concentration of glucose and non-esterified fatty acids (NEFA), milk yield (kg/d) and milk components, resumption of cyclicity, time-to-first artificial insemination (AI), conception at first AI, and conception within 150 DIM. Results A significant effect for the inclusion of RPF was found in daily milk yield; RPF supplemented cows had greater milk yield (1.6 kg/d) compared to CON cows up to 150 DIM (P = 0.03). During grazing, multiparous (MP) ORG cows had greater milk yield compared to MP CON cows, whereas no effect was found in primiparous (PP) cows. Health outcomes, serum metabolite concentrations, and reproductive performance were not affected by the inclusion of RPF. Body condition loss was smaller in the ORG group up to 80 DIM; however, there was no effect on body condition during the grazing season and in the overall study period. Conclusions These results indicate that supplementation of RPF increased daily milk yield and prevented body condition loss during transition. However, RPF supplementation did not affect health, serum metabolite concentration, milk components, and reproductive outcomes.

scholarly journals Effects of lactation number and different stage of lactation on milk yield of Indigenous and Crossbred cows in Bangladesh

1970 ◽  
Vol 1 (1) ◽  
pp. 31-34
Author(s):  
S Ahmad ◽  
FMA Hossain ◽  
N Islam
Keyword(s):  
Milk Production ◽  
Milk Yield ◽  
Natural Sciences ◽  
Crossbred Cows ◽  
Stage Of Lactation ◽  
Significant Difference ◽  
The Mean ◽  
Daily Milk Yield ◽  
Daily Milk

A total of 54 samples were collected from 18 milking cows from which nine were indigenous and nine were crossbred to evaluate the effects of different lactation number and different stage of lactation on the milk yield. The average daily milk yield of indigenous and crossbred cows at 1st, 2nd and 3rd lactation were 1.311, 1.633, 2.072 and 8.917, 9.567, 10.167 liter/day/cow respectively and represented the significant difference (p<0.01) within the daily milk yield of different lactations. Milk yield increased gradually from 1st to 3rd lactation. The highest milk yield was recorded in 3rd lactation and lowest was in 1st. The mean milk yield of indigenous and crossbred cows at early, middle & later stages of lactations were 1.617, 2.094, 1.306 and 9.389, 10.222, 9.039 liter/cow/day respectively that revealed stages of lactation had significant effect (p<0.01) on milk yield per day. It was observed that milk yield decreased after 2nd stage of lactation and decreased linearly up to the end of lactation. The highest milk yield was recorded in 2nd stage of lactation and lowest was in 3rd stage of lactation. The overall milk production in different lactation for indigenous cows was 1.672 liter/day and for crossbred cows was 9.550 liter/day that may be concluded as crossbred cows are superior to indigenous in concern of milk yield.Keywords: Indigenous cows; crossbred cows; lactation number; stage of lactation; milk yield.DOI: http://dx.doi.org/10.3329/ijns.v1i1.8614 International Journal of Natural Sciences (2011), 1(1):31-34 

scholarly journals The effect of an organic rumen-protected fat supplement on performance, metabolic status, and health of dairy cows

2019 ◽  
Author(s):  
Diego Manriquez ◽  
Liang Chen ◽  
Pedro Melendez ◽  
Pablo Pinedo
Keyword(s):  
Milk Yield ◽  
Body Condition ◽  
Reproductive Performance ◽  
Organic Production ◽  
Metabolic Status ◽  
Organic Dairy ◽  
Milk Components ◽  
Certified Organic ◽  
Daily Milk Yield ◽  
Daily Milk

Abstract Background Negative energy balance during the transition period is a concern for both conventional and certified organic dairy systems. During early lactation, supplemental strategies are used to cope with nutrient deficiencies that are associated with impaired health, production, and reproduction. As organic certified dairies in the United States face restricted access to dietary supplements, the evaluation of products especially formulated for organic production is needed. Our objective was to assess the effect of supplementing 0.45 kg/d of an organic rumen-protected fat (RPF) on health, metabolic status, and productive and reproductive performance of organic certified Holstein cows from 1 to 150 days in milk (DIM). Two-hundred and two cows were enrolled in a randomized blocked controlled trial conducted from January to July, 2017 in a certified organic dairy located in Northern Colorado (USA). Two groups were randomly assigned to be individually supplemented with organic RPF (ORG; n = 100) or control pellets (CON; n = 102) once per day, in addition to the total mixed ration (TMR). Outcomes of interest included disease occurrence, culling, mortality, serum concentration of glucose and non-esterified fatty acids (NEFA), milk yield (kg/d) and milk components, resumption of cyclicity, time-to-first artificial insemination (AI), conception at first AI, and conception within 150 DIM. Results A significant effect for the inclusion of RPF was found in daily milk yield; RPF supplemented cows had greater milk yield (1.6 kg/d) compared to CON cows up to 150 DIM (P = 0.03). During grazing, multiparous (MP) ORG cows had greater milk yield compared to MP CON cows, whereas no effect was found in primiparous (PP) cows. Health outcomes, serum metabolite concentrations, and reproductive performance were not affected by the inclusion of RPF. Body condition loss was smaller in the ORG group up to 80 DIM; however, there was no effect on body condition during the grazing season and in the overall study period. Conclusions These results indicate that supplementation of RPF increased daily milk yield and prevented body condition loss during transition. However, RPF supplementation did not affect health, serum metabolite concentration, milk components, and reproductive outcomes.

scholarly journals The effect of an organic rumen-protected fat supplement on performance, metabolic status, and health of dairy cows

2019 ◽  
Author(s):  
Diego Manriquez ◽  
Liang Chen ◽  
Pedro Melendez ◽  
Pablo Pinedo
Keyword(s):  
Milk Yield ◽  
Body Condition ◽  
Reproductive Performance ◽  
Organic Production ◽  
Metabolic Status ◽  
Organic Dairy ◽  
Milk Components ◽  
Certified Organic ◽  
Daily Milk Yield ◽  
Daily Milk

Abstract Background Negative energy balance during the transition period is a concern for both conventional and certified organic dairy systems. During early lactation, supplemental strategies are used to cope with nutrient deficiencies that are associated with impaired health, production, and reproduction. As organic certified dairies in the United States face restricted access to dietary supplements, the evaluation of products especially formulated for organic production is needed. Our objective was to assess the effect of supplementing 0.45 kg/d of an organic rumen-protected fat (RPF) on health, metabolic status, and productive and reproductive performance of organic certified Holstein cows from 1 to 150 days in milk (DIM). Two-hundred and two cows were enrolled in a randomized blocked controlled trial conducted from January to July, 2017 in a certified organic dairy located in Northern Colorado (USA). Two groups were randomly assigned to be individually supplemented with organic RPF (ORG; n = 100) or control pellets (CON; n = 102) once per day, in addition to the total mixed ration (TMR). Outcomes of interest included disease occurrence, culling, mortality, serum concentration of glucose and non-esterified fatty acids (NEFA), milk yield (kg/d) and milk components, resumption of cyclicity, time-to-first artificial insemination (AI), conception at first AI, and conception within 150 DIM. Results A significant effect for the inclusion of RPF was found in daily milk yield; RPF supplemented cows had greater milk yield (1.6 kg/d) compared to CON cows up to 150 DIM (P = 0.03). During grazing, multiparous (MP) ORG cows had greater milk yield compared to MP CON cows, whereas no effect was found in primiparous (PP) cows. Health outcomes, serum metabolite concentrations, and reproductive performance were not affected by the inclusion of RPF. Body condition loss was smaller in the ORG group up to 80 DIM; however, there was no effect on body condition during the grazing season and in the overall study period. Conclusions These results indicate that supplementation of RPF increased daily milk yield and prevented body condition loss during transition. However, RPF supplementation did not affect health, serum metabolite concentration, milk components, and reproductive outcomes.

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