Evaluation of Friesian Cattle Performance at First Lactation under Different Egyptian Conditions

Farrag, F. H.; Shalaby, N.; Gabr, A. A.; Ashry, M. El

doi:10.21608/jappmu.2017.45742

Cited by 4 publications

(6 citation statements)

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“…The unadjusted means, standard deviations (SD) and coefficients of variations for studied productive and reproductive traits are presented in Table (2). The TMY average of the present study (5778.15 kg) was higher (4227 kg) reported by Abosaq et al (2017), 2939 kg by Shehab El-Din (2020), and 3879 kg by Badr and Amer (2020), while it was lower than the TMY values of 8315 kg stated by Salem and Hammoud (2016), 6173.5 kg by Farrag et al (2017) and 8675 Overall mean of DO (99.56 d) detected in present study was shorter than means detected in different commercial Friesian herds (113.1, 144.49, 174.4, 166.50 and 159 d) obtained by (Salem and Hammoud, 2016;Abosaq et al, 2017;Farrag et al, 2017, Habib et al, 2020and Zahed et al, 2020. Also, the present mean of CI (377.4 d) was shorter than that of 414.43, 472.0, 433.2 and 427.72 days as presented by Abosaq et al (2017), Farrag et al (2017), Zahed et al (2019) and Habib et al (2020), respectively.…”

Section: Resultscontrasting

confidence: 70%

“…The TMY average of the present study (5778.15 kg) was higher (4227 kg) reported by Abosaq et al (2017), 2939 kg by Shehab El-Din (2020), and 3879 kg by Badr and Amer (2020), while it was lower than the TMY values of 8315 kg stated by Salem and Hammoud (2016), 6173.5 kg by Farrag et al (2017) and 8675 Overall mean of DO (99.56 d) detected in present study was shorter than means detected in different commercial Friesian herds (113.1, 144.49, 174.4, 166.50 and 159 d) obtained by (Salem and Hammoud, 2016;Abosaq et al, 2017;Farrag et al, 2017, Habib et al, 2020and Zahed et al, 2020. Also, the present mean of CI (377.4 d) was shorter than that of 414.43, 472.0, 433.2 and 427.72 days as presented by Abosaq et al (2017), Farrag et al (2017), Zahed et al (2019) and Habib et al (2020), respectively. Mean of NSC (1.99) was comparable to that values given by Salem and Hammoud (2016)(2.0), Sanad and Hassanane (2017)(1.93) and Abosaq et al (2017)(2.16), while it was lower than the values estimated by Habib et al (2020)(3.0) and Zahed et al (2020)(3.1).…”

Section: Resultscontrasting

confidence: 70%

“…Regarding the AFC value (26.97 mo), in present study, it was nearly similar to (27.2 mo) as recorded by Salem and Hammoud (2016). On the other hand, higher AFC values (29.4, 32.5 and 30.9 mo) were obtained by Farrag et al (2017), Sanad and Hassanane (2017) and Almasri et al (2020), respectively.…”

Section: Resultsmentioning

confidence: 73%

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Evaluation of Some Economical Traits of Commercial Friesian Cows Herd Raised in Egypt

Farrag

Shalaby

Gabr

et al. 2020

Journal of Animal and Poultry Production

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This study conducted to evaluate some of non-genetic and genetic parameters that affect the productive and reproductive traits. Total of 3596 records of 1021 Holstein Friesian cows in the first five parities were collected during the period from 2002 to 2016 from a commercial farm. The details values of productive traits (total milk yield (TMY, kg), lactation period (LP, day) and dry period (DP, day)), as well as, details values of reproductive traits (days open (DO, day), number of services per conception (NSC), age at first calving (AFC, months) and calving interval (CI, day)) were considered. The effects of season of calving and parity on productive and reproductive traits were also examined. The results revealed that the season of calving and parity had significant effect on all the studied traits. Heritability estimates for TMY, LP, DP, DO, CI, NSC and AFC are 0.110, 0.089, 0.071, 0.100, 0.103, 0.123 and 0.168, respectively. The phenotypic correlations of all studied traits were positive and ranged from 0.016 to 0.989, except that between TMY and all the reproductive traits as well as DP were negative. The values of genetic correlations among all studied productive and reproductive traits were positive and ranged from 0.031 to 0.998, except DP and TMY was negative. The present study is an effective way for using in improving programs for milk yield of Holstein Friesian cows in commercial farms.

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Section: Resultscontrasting

confidence: 70%

Section: Resultscontrasting

confidence: 70%

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Evaluation of Some Economical Traits of Commercial Friesian Cows Herd Raised in Egypt

Farrag

Shalaby

Gabr

et al. 2020

Journal of Animal and Poultry Production

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“…Genetic parameters and estimated breeding values (EBV) were carried out by derivative-free REML with a simplex algorithm using the Multiple Trait Derivative-Free Restricted Maximum Likelihood [MTDFREML] (Boldman et al 1995 In Egypt, the mean of milk yield at 305 days for Holstein cows were 4295 kg (Ashmawy & Khalil 1990), 4736±1097 kg (Tawfik et al 2000), 10847 kg (Abou-Bakr et al 2006), 9038±1181 kg (Salem et al 2006), 6118 kg (Abdel-Moez 2007), 8750 kg (Ghoneim et al 2011), 8455.4±1535.1 kg (Hammoud 2013), 8805±2024.3 kg (Rushdi et al 2014) and 6384.95±1236.9 kg (Faid-Allah et al 2016). In addition, the average of total milk yield for Friesian cattle in six commercial farms ranged from 3057 to 10900.7 kg (Farrag et al 2017).…”

Section: Genetic Parameters and Estimated Breeding Valuementioning

confidence: 99%

Estimating Breeding values for milk production and mastitis traits for Holstein cattle in Egypt

Faid-Allah¹

2019

JITV

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<p class="abstrak2">This study was carried out to evaluate the sires and dams genetically for milk production and mastitis traits in Egyptian 12 herds of Holstein cattle using Best Linear Unbiased Prediction via MTDFREML program. The data was obtained from a commercial farm called Dena, located in Cairo-Alex Desert Road (80 Km), Menofia, Egypt. Data included 4791 cows, 4227 dams and 248 sires that represented the period from 2007 to 2014. Estimating breeding values for milk production traits as cumulative milk yield at 90 days (90-DM), cumulative milk yield at 180 days (180-DM), cumulative milk yield at 270 days (270-DM), cumulative milk yield at 305 days (305-DM), and number of mastitis infection around the season of lactation (MAST). The averages of the 90-DM, 180-DM, 270-DM, 305-DM and MAST were 3026.3±655.1 kg, 5873.3±1081.1 kg, 7891.1±2692.2 kg, 9611.2±1897.9 kg, and 0.712±1.2 time/parity, respectively. Estimates of heritability for the previous traits were 0.11±0.016, 0.15±0.014, 0.18±0.012, 0.22±0.015, and 0.09±0.029, respectively; genetic variance were 47206.2 kg, 175300.6 kg, 1304654.4 kg, 792411.6 kg and 0.12 time/parity, respectively; and phenotypic variance were 429147.6 kg, 1168670.6 kg, 7248079.9 kg, 3601870.9 kg, and 1.35 time/parity, respectively. The EBV values as average, SD, (Min: Max) for sires were 0.0±0.179 (-0.4: 0.66) for MAST, 0.0±86.176 (-263.1: 245.4) for 90-DM, 0.0±227.523 (-600.3: 800.3) for 180-DM, 0.0±413.48 (-323.3: 1277.7) for 270-DM and 0.0±440.26 (-1280.9: 1565.1) for 305-DM. Also, The EBVs for dams were 0.0±0.055 (-0.14: 0.45) for MAST, 0.033±26.24 (-142.8: 103.0) for 90-DM, 0.074±76.81 (-360.2: 289.6) for 180-DM, -0.045±139.66 (-591.9: 529.2) for 270-DM and 0.266±154.1 (-666.3: 617.6) for 305-DM. These results provide that the selection of sires and dams will improve the traits of milk production and mastitis in this herd because of the wide differences in genetic potential among sires and dams.</p>

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“…Over the past two decades, significant emphasis has been put on the importance of Friesian cattle in Egypt for milk production, which has resulted in an increase in the number of large Friesian herds either in government or commercial farms through imports from Europe and the United States (Farrag et al, 2017). Milk production in dairy farms can either be improved by increasing the number of milking animals or by rising the quantity of milk per animal by improving the environmental conditions, management practices and genetics.…”

Section: Introductionmentioning

confidence: 99%

Maternal Genetic Effect on Expected Genetic Response of Selection Indices for Milk Production of Friesian Cows in Egypt

Abd-Elatief

Ghazy

2020

Journal of Animal and Poultry Production

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The present study aimed to estimate the genetic parameters of first lactation milk yield (FLMY), first lactation period (FLP), first dry period (FDP) and first calving interval (FCI) and inclusion these studied traits in selection indices through different animal models. The data utilized in this study were obtained from 1821 normal first lactation of Friesian cows belong to Sakha and EI-Karada Experimental stations of Animal Production Research Institute (APRI), Dokki, Cairo, Egypt. Data were collected during the period from 1990 to 2016 and analyzed using the MTDFREML program. Covariance components were used to construct the different selection indices for FLMY kg, FLP day, FDP day and FCI day with four multiple animal models. Means for FLMY, FLP, FDP and FCI were 2425 kg, 304 d, 170 d and 474 d, respectively. Direct heritability (h 2 a) for the above-mentioned traits were 0.32, 0.29, 0.27 and 0.18, respectively. The corresponding estimates of the maternal heritability (h 2 m) for the same traits were 0.25, 0.22, 0.30 and 0.27, successively. Estimates of direct genetic correlations among studied traits ranged from -0.52 to 0.61. The phenotypic correlations among investigated traits were ranging from -0.20 to 0.23. Animal model number two that included the additive and permanent effects had the highest accuracy. On the contrary, model number three that included additive and maternal effects. The ranking correlations among four animal models were higher than 0.93. This indicates that using one of the studied models can be achieved the genetic improvement. We would however recommend that included the permanent environmental effects on analytical models when selection for these traits in Friesian cows under Egyptian condition.

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Evaluation of Friesian Cattle Performance at First Lactation under Different Egyptian Conditions

Cited by 4 publications

References 6 publications

Evaluation of Some Economical Traits of Commercial Friesian Cows Herd Raised in Egypt

Evaluation of Some Economical Traits of Commercial Friesian Cows Herd Raised in Egypt

Estimating Breeding values for milk production and mastitis traits for Holstein cattle in Egypt

Maternal Genetic Effect on Expected Genetic Response of Selection Indices for Milk Production of Friesian Cows in Egypt

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