نتایج جستجو برای: crossbred cows

تعداد نتایج: 32387  

Journal: :Indian Journal of Animal Research 2021

Background: Heat stress causes oxidative and declines milk production potential of cows. The physiological responses skin temperature heat stressed animals are good indices for deterring the stress. efficacy medicinal herb Chlorophytum borivilianum (CB) was tested in lowering rise values crossbred vis a Indigenous Methods: Eighteen Tharparkar (TP) Crossbred KF cows mid-lactation were given; No ...

Journal: :Journal of animal science 1989
L W Greene J F Baker P F Hardt

British breeds of cattle are not so effective as Zebu in extracting nutrients from low-quality roughages, and these breeds differ in their nutrient metabolism and animal physiology. Breeds of cattle may differ in their requirements for Mg. Brahman cows are less susceptible to death from disease and metabolic disorders than are British breeds of cattle, whereas cows with 50% or greater dairy bre...

  reducing production and death. The disease in endemic areas would be mild or subclinical in indigenous cattle and clinically acute in exotics. OBJECTIVES: This study was conducted to evaluate the resistance of indigenous cattle in comparison with Holstein and crossbred cattle against Theileria annulata through assessment of clinical signs and response to treatment. METHODS: For this purpose...

Journal: :iranian journal of applied animal science 2015
m.e. hossain t. chanda g.k. debnath m.m. hassan m.a. haque

the study was carried out on 120 crossbred holstein × shahiwal dairy cows for a period of 150 days to quantify the influence of dietary energy and protein intake on yield and composition of milk. total 12 dairy farms having similar housing systems and holding at least 20 dairy cows in between mid to late lactation were selected for study purposes. the farms were located in the peri-urban and ur...

2014
Shweta Kohli

Aim: Uttarakhand is a relatively new state and many cross bred cattle were introduced to boost the milk yield of the state. Despite all efforts the milk yield of dairy in Uttarakhand is comparatively low. In our study, we assessed the effect of heat stress on milk production, using thermal humidity index (THI) in high (cross bred cattle) and low milk producing (LMP) cows (native cows) in Dehrad...

Journal: :Journal of animal science 1985
K Nadarajah T J Marlowe D R Notter

Growth patterns from birth to maturity were compared for 92 straightbred Herefords (H) and 299 Hereford crossbred (XB) cows. Crossbred cows were out of Hereford dams and were sired by bulls of two British [Angus (A) and Shorthorn (Sh)], two Continental [Charolais (C) and Simmental (S)] and two American dairy breeds [Brown Swiss (B) and Holstein (F)]. British XB and H cows differed only slightly...

Journal: :IOP conference series 2023

Abstract The research was conducted to observe morphometric characteristics of Limousin-Bali crossbred cows in Lombok Tengah Regency, West Nusa Tenggara. Data were collected using purposive sampling technique with cattle measured including Bali and crossbred. material used 60 head which consisted 30 (Limbal) cows. kept loose pens a litter base. feed provided forages as well drinking water is fr...

2005
Bill Malcolm C Grainger

Introduction Investigating and comparing the two systems Comparing some technical efficiency ratios and profit Points to note about the comparison Conclusions References Abstract. In this study, budgets of herd dynamics, feed and energy supply, production and profit of alternative dairy farm systems were used to examine the effects of changing a 230 cow Holstein-Friesian (HF) dairy system to a ...

Journal: :Journal of Dairying, Foods & Home Sciences 2021

Background: Cellular tolerance to heat stress is mediated by shock proteins (HSPs). The HSPs act as molecular chaperones and are transcribed in response stress. Among different families of these proteins, HSP70 considered be related the development temperature tolerance. Unraveling polymorphism protein genes could a step towards identification genetic markers for selecting heat-tolerant cattle....

2009
R. R. Frahm

than to calf birth weight alone. Percent calving difficulty is the percentage of births requiring assistance from the herdsman. Calving scores of3 or higher were classified as difficult births based on a scoring system ranging from I = no assistance to 5 = caesarian birth or abnormal presentation. Due to the substantially higher incidence of calving difficulty in 1978 over 1979 (11.3 percent vs...

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