Evaluation of Red Chittagong Cows Based on Test Day Milk Production

The merit of Red Chittagong cows-a promising indigenous cattle genetic resource of Bangladesh was evaluated by using test day milk yield records of total 41 individuals. The data were collected from the Nucleus Herd of Red Chittagong (RC) cattle maintained at Bangladesh Agricultural University, Mymensingh from June, 2007 to October, 2008 under supervised animal recording system along with the previously recorded data from 2005 was also taken into consideration. Data were then analyzed for evaluating the cows based on lactation yield and average daily milk yield. Average lactation yield and daily milk yield were 453.86 ± 59.61 and 1.99 ± 0.14 kg, respectively. The highest lactation yield (538.04 kg) and daily milk yield (2.3 kg) was found in 4th and 5th lactation, respectively. The most probable producing ability (MPPA) of RC cows was calculated by using the test day records and then the animals were ranked on the basis of their MPPA value. For MPPA calculation two methods were followed; cows repeated lactation performance (MPPA1) and within lactation repeated test day records and averaged (MPPA2). The highest MPPA for lactation yield was shown by the cow no. 36 (645.61 kg) and the highest MPPA1 and MPPA2 for daily milk yield were 2.83 and 3.46 kg, respectively for cow no. 03. The result of this study suggests that test-day yields may well be used for genetic evaluation of cows to make recurrent selection decision in cattle breeding programs.DOI: http://dx.doi.org/10.3329/pa.v19i2.16950 Progress. Agric. 19(2): 101 - 109, 2008

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Oxytocin release and lactation performance in Syrian Shami cattle milked with and without suckling

Journal of Dairy Research ◽

10.1017/s0022029905001329 ◽

2005 ◽

Vol 73 (1) ◽

pp. 28-32 ◽

Cited By ~ 4

Author(s):

Shehadeh H Kaskous ◽

Daniel Weiss ◽

Yassin Massri ◽

Al-Moutassem B Al-Daker ◽

Ab-Dallah Nouh ◽

...

Keyword(s):

Milk Yield ◽

Post Partum ◽

Lactation Performance ◽

Machine Milking ◽

Oxytocin Release ◽

Daily Milk Yield ◽

Daily Milk

Oxytocin (OT) release and lactation performance in primiparous Syrian Shami cows were evaluated in response to two different machine milking regimes. Six cows were milked in the presence of the calves (PC) and subsequently suckled, whereas six cows were exclusively machine milked without the presence of their calves (WC) until day 91 post partum. Milk yield and milk constituents were determined weekly. The degree of udder evacuation was determined by the succeeding removal of residual milk. PC released OT during the milking process, whereas in WC no OT release was detected throughout the milking process. Consequently, the residual milk fraction was much lower in PC than in WC (11% v. 58%, P<0·05) and daily milk yield until day 91 post partum was higher in PC than in WC (12·6±0·3 v. 7·1±0·4 kg, P<0·05). In conclusion, Syrian Shami cattle are not suitable to be exclusively machine milked without the presence of their calves.

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Reliability of Milk Recording Data Under Conditions of Automatic Milking System

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis ◽

10.11118/actaun201462050911 ◽

2014 ◽

Vol 62 (5) ◽

pp. 911-917 ◽

Cited By ~ 1

Author(s):

Oto Hanuš ◽

Pavel Hering ◽

Gustav Chládek ◽

Daniel Falta ◽

Petr Roubal ◽

...

Keyword(s):

Dairy Cows ◽

Cell Count ◽

Milk Yield ◽

Somatic Cell Count ◽

Crude Protein ◽

Cattle Breeding ◽

Automatic Milking System ◽

Automatic Milking ◽

Daily Milk Yield ◽

Daily Milk

Automatic milking system (AMS) brings a change in approach to ensure the data reliability in the official milk recording (MR). The AMS is equipped with flowmeter. AMS software provides the daily milk yield (DMY) and average of the last 7 daily milk yields (AVG7) for MR. Classic MR uses DMY. AVG7 could be more reliable value. Origin of both records (DMY and AVG7) is from AMS flowmeter. The aim of paper was to compare the values of milk yield of cows from daily (DMY) and the extended records (AVG7) from AMS for objective assess of lactations to be used in cattle breeding. Study (2013) with 2 AMS herds (DeLaval and Lely Astronaut): herd 1 – Holstein (H) dairy cows; herd 2 – Czech Fleckvieh (CF) dairy cows. There were following milk records: n = 521 DeLaval (H); n = 567 Lely Astronaut (CF); 70 (H) and 68 (CF) dairy cows. MR samples were analyzed on: fat content; crude protein; somatic cell count. Correlations between AVG7 and DMY were: 0.888 (H); 0.898 (CF, both P ≤ 0.001). There were insignificant differences (P > 0.05; −0.07 ± 3.29 kg for H and 0.28 ± 3.3 kg for CF) between AVG7 and DMY for both robots. The same is valid for differences in the production of milk components. According to this comparison experiment the AVG7 of AMS is a suitable equivalent for the DMY regarding official MR for assessment of lactations.

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Lactation performance of Red Chittagong Cattle and effects of environmental factors

Bangladesh Veterinarian ◽

10.3329/bvet.v27i1.5911 ◽

1970 ◽

Vol 27 (1) ◽

pp. 18-25 ◽

Cited By ~ 4

Author(s):

MA Habib ◽

MA Afroz ◽

AKFH Bhuiyan

Keyword(s):

Environmental Factors ◽

Milk Yield ◽

Season Of Birth ◽

Production Traits ◽

Lactation Performance ◽

Dry Period ◽

Lactation Length ◽

Daily Milk Yield ◽

Daily Milk

The present study was undertaken to estimate effects of environmental factors onmilk production traits in Red Chittagong Cattle (RCC). A total of 103 milk yield recordsof 45 RCC cows obtained between 2005 and 2009 were analysed. Actual lactation yield,lactation length, daily milk yield and dry period were estimated as 500.7 ± 19.3 kg, 259.6 ±6.2 days, 1.9 ± 0.1 kg and 162.4 ± 7.7 days, respectively. Age and season correctedlactation yield, 305 day milk yield and daily milk yield were estimated as 605.4 ± 22.9,677.1 ± 19.4 and 2.2 ± 0.1 kg, respectively. Sex of calf and season of birth did notsignificantly (P>0.05) affect production, but lactation order significantly (P<0.05) affectedproduction except lactation length. Year of birth had no effect (P>0.05) on the traitsanalysed except daily milk yield (P<0.05). Calving age significantly (P<0.05) affectedlactation yield but did not other traits. Cows in 5th lactation produced highest total (604.3± 69.3 kg) and daily milk yield (2.17 ± 1.8 kg). Cows aged 6 – 7 years had best lactationyield (576.8 ± 60.5 kg).(Bangl. vet. 2010. Vol. 27, No. 1, 18 – 25)DOI: 10.3329/bvet.v27i1.5911

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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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Daily milk yield prediction of dairy cows based on the GA-LSTM algorithm

2020 15th IEEE International Conference on Signal Processing (ICSP) ◽

10.1109/icsp48669.2020.9320926 ◽

2020 ◽

Author(s):

Wenli Zhang ◽

Kun Yang ◽

Naigong Yu ◽

Tingting Cheng ◽

Jichao Liu

Keyword(s):

Dairy Cows ◽

Milk Yield ◽

Yield Prediction ◽

Daily Milk Yield ◽

Daily Milk

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Novel Genes Associated with Dairy Traits in Sarda Sheep

Animals ◽

10.3390/ani11082207 ◽

2021 ◽

Vol 11 (8) ◽

pp. 2207

Author(s):

Michele Pazzola ◽

Giuseppe Massimo Vacca ◽

Pietro Paschino ◽

Giovanni Bittante ◽

Maria Luisa Dettori

Keyword(s):

Association Analysis ◽

Milk Yield ◽

Dairy Traits ◽

Breeding Schemes ◽

Milk Coagulation ◽

Set Up ◽

A Minor ◽

Daily Milk Yield ◽

Breed Sheep ◽

Daily Milk

The aim of the present research was to analyze the variability of 45 SNPs from different genes involved in metabolism and innate immunity to perform an association analysis with the milk yield, composition and milk coagulation traits. A population of 1112 Sarda breed sheep was sampled. Genotyping was generated by a TaqMan Open ArrayTM. Thirty out of the 45 SNPs were polymorphic, and 12 displayed a minor allele frequency higher than 0.05. An association analysis showed that the variability at genes PRKAG3 and CD14 was significantly associated with the daily milk yield. The variability at PRKAG3 was also associated with the protein and casein content, somatic cell score and bacterial score. The variation at the PRKAA2 gene was associated with the milk lactose concentration. The SNPs at CD14 were also associated with the traditional milk coagulation properties, while the SNPs at GHR and GHRHR were associated with kSR, a derived coagulation parameter related to the rate of syneresis. The information provided here is new and increases our knowledge of genotype–phenotype interactions in sheep. Our findings might be useful in appropriate breeding schemes to be set up for the Sarda sheep breed, but these should be confirmed by further studies, possibly performed on independent populations.

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Effects of Sprinkler Flow Rate on Physiological, Behavioral and Production Responses of Nili Ravi Buffaloes during Subtropical Summer

Animals ◽

10.3390/ani11020339 ◽

2021 ◽

Vol 11 (2) ◽

pp. 339

Author(s):

Musa Bah ◽

Muhammad Afzal Rashid ◽

Khalid Javed ◽

Talat Naseer Pasha ◽

Muhammad Qamer Shahid

Keyword(s):

Heat Stress ◽

Milk Yield ◽

Flow Rate ◽

Rectal Temperature ◽

Latin Square ◽

Flow Rates ◽

Group Water ◽

Humidity Index ◽

Daily Milk Yield ◽

Daily Milk

Water buffaloes wallow in water to combat heat stress during summer. With the decreasing reservoirs for wallowing, the farmers use sprinklers to cool the buffaloes in Pakistan. These sprinklers use a large quantity of groundwater, which is becoming scarce. The objective of the current study was to determine the effect of different sprinkler flow rates on the physiological, behavioral, and production responses of Nili Ravi buffaloes during summer. Eighteen buffaloes were randomly subjected to three sprinkler flow rate treatments in a double replicated 3 × 3 Latin square design. The flow rates were 0.8, 1.25, and 2.0 L/min. During the study, the average afternoon temperature humidity index was 84.6. The 1.25 and 2.0 L/min groups had significantly lower rectal temperature and respiratory rates than the 0.8 L/min group. Water intake was significantly higher in the 0.8 L/min group. Daily milk yield was higher in the 1.25 and 2.0 L/min groups than in the 0.8 L/min group. These results suggested that the sprinkler flow rates > 0.8 L/min effectively cooled the buffaloes. The sprinkler flow rate of 1.25 L/min appeared to be more efficient, as it used 37.5% less water compared to the 2.0 L/min.

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Milk production and its relationship with milk composition, body and udder morphological traits in Bedouin goat reared under arid conditions

Acta Scientiarum Animal Sciences ◽

10.4025/actascianimsci.v41i1.42552 ◽

2018 ◽

Vol 41 (1) ◽

pp. 42552

Author(s):

Fatima Kouri ◽

Salima Charallah ◽

Amina Kouri ◽

Zaina Amirat ◽

Farida Khammar

Keyword(s):

Body Weight ◽

Milk Production ◽

Milk Yield ◽

Milk Fat ◽

Morphological Traits ◽

Growth Traits ◽

Average Daily Gain ◽

Arid Conditions ◽

Daily Milk Yield ◽

Daily Milk

This research aims to assess the performances of lactating Bedouin goat under arid conditions, focusing on the relationship of milk yield with body and udder morphology and growth traits. Fourteen goats and their kids were followed during early lactation (90 days post-partum). Mean daily milk yield was 0.56 kg. Milk fat, proteins, lactose, solids non-fat and minerals were respectively 34.9, 38.9, 48.8, 107 and 6.7 g L-1. Mean kids’ birth weight, adjusted body weight at 90 days of age and average daily gain were respectively 2 kg, 6.6 kg and 51.4 g day-1. Daily milk yield was correlated with goats’ body weight, withers height, rump height, udder width and udder circumference but not with linear udder score and growth performances. These results provide important data about the milk production of Bedouin goat emphasizing its correlation with body and udder morphological traits which can help to elaborate a specific breeding program for this breed.

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