Effect of feeding of different sources of NPN on production performance of dairy cows

Karcol, Juraj; Kasarda, Radovan; Šimko, Milan

doi:10.15414/afz.2016.19.04.163-166

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…The latter is considerable nitrogen loss as up to 25% of nitrogen taken with nutrients is excreted in this way. However, this excretion rate decreases in feeding with poor quality roughages (48).…”

Section: The Rumen As a Continuous Fermentermentioning

confidence: 97%

Rumen physiology: microorganisms, fermentation and manipulation

Öztürk

Gur

2021

Ankara Üniversitesi Veteriner Fakültesi Dergisi

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Ruminants are unique mammals that can convert the energy in roughage to edible products for humans. Hence, rumen fermentation has been excessively on the scope of researchers for long years. Advances in rumen fermentation are a vital concern to provide food with good quality for the growing population of man. This review focuses on physiology of rumen fermentation and the recent advances in the field.

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Section: The Rumen As a Continuous Fermentermentioning

confidence: 97%

Rumen physiology: microorganisms, fermentation and manipulation

Öztürk

Gur

2021

Ankara Üniversitesi Veteriner Fakültesi Dergisi

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“…These traits are characterized by a low value of heredity and thus largely influenced by environmental traits, especially nutrition as they state in their publications Karcol et al (2017), Juraček et al (2020 and other authors. Costa et al (2019) found that the lactose percentage has potential to asses health and thus the milk quality in Fleckvieh dairy cows.…”

Section: Introductionmentioning

confidence: 97%

The evaluation of the relationship of lactose to production and reproduction traits in different breeding conditions of the Slovak Spotted dairy cows

Bujko

Candrák²,

Strapák³

et al. 2021

Acta fytotechn zootechn

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The aim of this study was to evaluate lactose in relation to milk production and calving interval in dairy cows of Slovak Spotted cattle. A total of 92,730 lactations from 45,800 dairy cows evaluation from 2015 to 2019 were used for investigating lactose percentage (LP), milk yield (MY), lactose yield (LY), fat percentage (FP), proteins percentage (PP) and calving interval (CI). Data were analysed using the SAS version 9.4 and linear model with fixed effects: herd-years-season (HYS), sire (S), breeding type (BT), coding of milk (Cod-MY) and coding of calving interval (Cod-CI). In the dataset the average of LP was 4.77 ±0.20%, while the one of MY, LY,

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The Analysis of Reproduction in Population of the Slovak Spotted Dairy Cows

Bujko

Candrák

Strapák

et al. 2019

Acta Univ. Agric. Silvic. Mendelianae Brun.

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The aim of study was to analyse the reproduction and factors affecting on reproduction traits of dairy cows in population of Slovak Spotted cattle from 2007 to 2016 the results for 37,274 dairy cows: days to first service (DFS), days open (DO), number of inseminations per conception (NIC), age of first calving (AFC) and calving interval (CI). The basic statistical analysis were analysed using the SAS version 9.3. For the actual computation a linear models with fixed effects was used: For the actual computation a linear models with fixed effects was used: yijklm = μ + HYSi + BTj+ Fk+ Bl +eijklm. The linear model represents coefficients determination R2 = 0.452117% (P < 0.001) for DFS, R2 = 0.377715% (P < 0.001) for DO, R2 = 0.348442% (P < 0.001) for NIC and R2 = 0.317128% (P < 0.001) for CI with all fixed effects. Correlation coefficients among DFS with DO, NIC, AFC and CI were r = 0.37275, r = -0.06881, r = 0.06493 and r = 0.08348. These coefficients were highly statistically significant (P < 0.001).

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Effect of feeding of different sources of NPN on production performance of dairy cows

Cited by 3 publications

References 6 publications

Rumen physiology: microorganisms, fermentation and manipulation

Rumen physiology: microorganisms, fermentation and manipulation

The evaluation of the relationship of lactose to production and reproduction traits in different breeding conditions of the Slovak Spotted dairy cows

The Analysis of Reproduction in Population of the Slovak Spotted Dairy Cows

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